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Mouse Machine Mechanism Prototype

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First draft of the Mouse Machine mechanism. I've put together a model as a test of the layout I sketched out earlier. The mouse will fit on the base plate and will appear to be operating the crank as the handle is turned.


There were a couple of problems with the first draft.

First, the main gear was intended to be flush with the box front but was being pushed away by the pinion gear.

Secondly I had initially made the crank and pinion as two separate parts but on completion it looked like they would be better as a single unit.


Rather than completely remake the model I employed a trick I often use when prototyping. The axle holes in the box side needed to be moved back by 3mm so I remade just the sides with the holes in the correct place, I expanded the hole in the original box, then glued the new sides into place creating a repositioned pair of axle holes.


I also make up a new handle with a longer shaft and glued the pinion to it.


With the drive axle in place I fitted a lock piece to the end opposite the pinion to stop the axle coming out then fitted the yellow horizontal handle to complete the mechanism.


With everything in place it is time to move to the next stage, making a mouse with shoulder and hip joints.

First draft of the Mouse Machine mechanism. I've put together a model as a test of the layout I sketched out earlier. The mouse will fit on the base plate and will appear to be operating the crank as the handle is turned.


There were a couple of problems with the first draft.

First, the main gear was intended to be flush with the box front but was being pushed away by the pinion gear.

Secondly I had initially made the crank and pinion as two separate parts but on completion it looked like they would be better as a single unit.


Rather than completely remake the model I employed a trick I often use when prototyping. The axle holes in the box side needed to be moved back by 3mm so I remade just the sides with the holes in the correct place, I expanded the hole in the original box, then glued the new sides into place creating a repositioned pair of axle holes.


I also make up a new handle with a longer shaft and glued the pinion to it.


With the drive axle in place I fitted a lock piece to the end opposite the pinion to stop the axle coming out then fitted the yellow horizontal handle to complete the mechanism.


With everything in place it is time to move to the next stage, making a mouse with shoulder and hip joints.

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Rotobot

£2.50

Your rating: None (5 votes)

Rotobot - the Counter-Rotating Robot!

A paper animation kit to download, print out and make.

Turn the handle on the Rotobot and the head rotates one way whilst the body rotates the other.

This model is based around the co-axial drive model featured here. Members can download the model for free, thank you for signing up! Non-members can join in the fun for $3.75/£2.50



Download and print out the five pages onto thin card (230 micron / 67lb) Score along the dotted and dashed lines and cut out the holes before carefully cutting out the parts.


The gears are made from double thickness card for extra strength. Fold them in half and glue them down then when the glue is completely dry carefully cut them out.


Fit the matching axle stub into each of the gears.


Fold up and glue the top and base making right angle triangle tubes.


Fold over and glue the flaps on the box ends and the cross piece making equilateral triangle tubes.


Roll up and glue the three axle tubes as accurately as possible.


Glue the box end to the base as shown.


Glue the 8mm axle to the gear with the smaller hole as shown. Make sure it is the right way up.


Glue the 10mm axle to the gear with the larger hole as shown. Make sure it is the right way up.


Glue the short axle to the pinion gear.


Thread the wider axle over the narrower one. They should be free to rotate.


Assemble the handle in three steps.


Glue the other end of the box into place.


Glue the box top into position leaving one end opened as shown.


Thread the gears up through the box top and fit them into place.


Fit the pinion gear into the cross piece.


Thread the pinion axle out through the box end.


Glue down the box top. Fold in and glue the side flaps then glue the cross piece into position.


Thread the box top down over the axle.


Glue the box top to the box and glue on the handle to complete the base.


Making the Robot

The arms are made from double thickness card. Fold them over and glue them down making sure not to glue the tabs together. Once the glue is dry carefully cut them out.


Glue the nose to the head.


Roll the head round and glue it to the head top.


Glue the jaw into position.


Roll up the neck tube and glue it to the inside top of the head.


Glue the body to the body top as shown.


Roll the body tube so that the colour is on the inside. Fit it into the body top and glue it down.


Join together matching pairs for body spiders as shown.


Glue the spiders to the spider inner making this support structure.


Fit the spider into the body and glue it down.


Make the legs inner then glue on the legs outers.


Roll round the legs outer and glue them down.


Make up the neck spider in the same way as the body spider. Glue it to the grey areas on the head spider inner. Glue the head spider into place.


This completes the robot. The three parts should loosely fit together as shown.


Final Assembly

Glue the legs to the box top so that the axle is centred in the square tube.


Apply a small amount of glue to the outer axle tube and fit the body into place.


Apply a small amount of glue to the inside of the neck spider and glue it into place to complete the model.


Turn the handle to rotate your counter-rotating Rotobot!

Rotobot - the Counter-Rotating Robot!

A paper animation kit to download, print out and make.

Turn the handle on the Rotobot and the head rotates one way whilst the body rotates the other.

This model is based around the co-axial drive model featured here. Members can download the model for free, thank you for signing up! Non-members can join in the fun for $3.75/£2.50



Download and print out the five pages onto thin card (230 micron / 67lb) Score along the dotted and dashed lines and cut out the holes before carefully cutting out the parts.


The gears are made from double thickness card for extra strength. Fold them in half and glue them down then when the glue is completely dry carefully cut them out.


Fit the matching axle stub into each of the gears.


Fold up and glue the top and base making right angle triangle tubes.


Fold over and glue the flaps on the box ends and the cross piece making equilateral triangle tubes.


Roll up and glue the three axle tubes as accurately as possible.


Glue the box end to the base as shown.


Glue the 8mm axle to the gear with the smaller hole as shown. Make sure it is the right way up.


Glue the 10mm axle to the gear with the larger hole as shown. Make sure it is the right way up.


Glue the short axle to the pinion gear.


Thread the wider axle over the narrower one. They should be free to rotate.


Assemble the handle in three steps.


Glue the other end of the box into place.


Glue the box top into position leaving one end opened as shown.


Thread the gears up through the box top and fit them into place.


Fit the pinion gear into the cross piece.


Thread the pinion axle out through the box end.


Glue down the box top. Fold in and glue the side flaps then glue the cross piece into position.


Thread the box top down over the axle.


Glue the box top to the box and glue on the handle to complete the base.


Making the Robot

The arms are made from double thickness card. Fold them over and glue them down making sure not to glue the tabs together. Once the glue is dry carefully cut them out.


Glue the nose to the head.


Roll the head round and glue it to the head top.


Glue the jaw into position.


Roll up the neck tube and glue it to the inside top of the head.


Glue the body to the body top as shown.


Roll the body tube so that the colour is on the inside. Fit it into the body top and glue it down.


Join together matching pairs for body spiders as shown.


Glue the spiders to the spider inner making this support structure.


Fit the spider into the body and glue it down.


Make the legs inner then glue on the legs outers.


Roll round the legs outer and glue them down.


Make up the neck spider in the same way as the body spider. Glue it to the grey areas on the head spider inner. Glue the head spider into place.


This completes the robot. The three parts should loosely fit together as shown.


Final Assembly

Glue the legs to the box top so that the axle is centred in the square tube.


Apply a small amount of glue to the outer axle tube and fit the body into place.


Apply a small amount of glue to the inside of the neck spider and glue it into place to complete the model.


Turn the handle to rotate your counter-rotating Rotobot!

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< | >

Co-axial Drive

£2.50

Your rating: None (5 votes)

Presenting the Co-axial drive, or to give it its full title, the Counter-Rotating Co-axial drive. Ta daa!

Turn the handle on this Essential Mechanism and the inner axle rotates ones way whilst the outer axle rotates the other. Use this as a starting point for your own character based models or as an exercise in pure mechanism. Members and patrons can download the parts for free from the link. Thanks for signing up! Non members can join in the fun for £2.50


Print out the parts onto thin card (230 gsm/67lb). I used coloured card for the moving parts to make then stand out from the box. Score all the dotted and dashed lines and cut out the holes before carefully cutting out the parts.


The gears are made from double thickness card. Fold them over, glue them down then carefully cut them out.


Fit the matching axle stub to each axle.


Roll round and glue down the three axle tubes being careful to line up the edges with the points or the arrows.


Thread the gear with the large axle to the widest tube and glue it into place as shown.


Glue the second axle into place.


Fit the small gear to the final axle as shown


Assemble the handle in three steps.


Fold round and glue the box top and base making right angled triangle tubes.


Fold round and glue down the tabs on the box ends making equilateral triangle tubes.


Assemble the cross piece as shown.


Glue the box ends to the base. Note the flaps on the box base fold downwards. (second picture)


Glue one end of the top into place


Thread the small gear into the cross piece.


Fit the axle roughly into position through the hole in the box end.


Fit together the two other axles, one inside the other as shown. Thread them up through the hole in the box top.


Fold the top and gears down so that they mesh with the pinion gear and the box parts line up.


Close the box and glue the sides into position. Glue the cross piece into place.


Complete the model by fitting the handle.

Once the glue is dry, turn the handle and be amazed as the two shafts turn in opposite directions!

Presenting the Co-axial drive, or to give it its full title, the Counter-Rotating Co-axial drive. Ta daa!

Turn the handle on this Essential Mechanism and the inner axle rotates ones way whilst the outer axle rotates the other. Use this as a starting point for your own character based models or as an exercise in pure mechanism. Members and patrons can download the parts for free from the link. Thanks for signing up! Non members can join in the fun for £2.50


Print out the parts onto thin card (230 gsm/67lb). I used coloured card for the moving parts to make then stand out from the box. Score all the dotted and dashed lines and cut out the holes before carefully cutting out the parts.


The gears are made from double thickness card. Fold them over, glue them down then carefully cut them out.


Fit the matching axle stub to each axle.


Roll round and glue down the three axle tubes being careful to line up the edges with the points or the arrows.


Thread the gear with the large axle to the widest tube and glue it into place as shown.


Glue the second axle into place.


Fit the small gear to the final axle as shown


Assemble the handle in three steps.


Fold round and glue the box top and base making right angled triangle tubes.


Fold round and glue down the tabs on the box ends making equilateral triangle tubes.


Assemble the cross piece as shown.


Glue the box ends to the base. Note the flaps on the box base fold downwards. (second picture)


Glue one end of the top into place


Thread the small gear into the cross piece.


Fit the axle roughly into position through the hole in the box end.


Fit together the two other axles, one inside the other as shown. Thread them up through the hole in the box top.


Fold the top and gears down so that they mesh with the pinion gear and the box parts line up.


Close the box and glue the sides into position. Glue the cross piece into place.


Complete the model by fitting the handle.

Once the glue is dry, turn the handle and be amazed as the two shafts turn in opposite directions!

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< | >

Contra-Rotating Gear Prototype

Your rating: None (2 votes)

For a project I'm working on I need two disks, one on top of another, rotating in opposite directions. The mechanism is interesting and could be useful for other paper automata so I'll be putting it on the site as an Essential Mechanism.

Here is the first proof-of-concept stage. There will be two vertical axles, one inside the other. The plan is that the lower gear rotates the inner axle and the top gear rotates the outer axle. Both gears are rotated in opposite directions by the blue pinion gear. In this prototype the top and bottom gears have thirteen teeth and the pinion gear has nine teeth.


The next stage is to design the box. It will need to hold everything accurately in position whilst at the same time letting the gears rotate freely. Should be fun!

For a project I'm working on I need two disks, one on top of another, rotating in opposite directions. The mechanism is interesting and could be useful for other paper automata so I'll be putting it on the site as an Essential Mechanism.

Here is the first proof-of-concept stage. There will be two vertical axles, one inside the other. The plan is that the lower gear rotates the inner axle and the top gear rotates the outer axle. Both gears are rotated in opposite directions by the blue pinion gear. In this prototype the top and bottom gears have thirteen teeth and the pinion gear has nine teeth.


The next stage is to design the box. It will need to hold everything accurately in position whilst at the same time letting the gears rotate freely. Should be fun!

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< | >

Hopping Reindeer

£2.50

Your rating: None (5 votes)

A mash up model for the festive season. I've taken the Reindeer and Tree from here and the Three Cam and Gear Box from here and made this paper automata. In a call back to one of my first ever designs I've called it the Hopping Reindeer.


All the parts that you need are in the downloadable file. Members can download for free, thanks for your support! Non members can download the parts at the link for £2.50

Print out the parts onto thin card (230gsm /67lb)

Score along the dotted and dashed lines then cut out the parts. The instructions are basically the same as the original models with a few small changes. Check out the reindeer and tree instructions here. The instructions for the base are here but check out the instructions below for some minor changes to the original.


Here's the completed cam shaft, note that the third cam now has three lobes.


Here's the cam shaft and gear fitted into place.


The slightly redesigned cam followers now have a triangular end to more closely follow the cams.


With the box upside down the cam fits in here.


The push rod is slightly long and fits to the cam follower like this.


All three cam followers fitted into place.


Make up three reindeer.


Glue them to the ends of the pushrods.


Turn the handle and delight at the Hopping Reindeer! Festive Felicitations one and all!

A mash up model for the festive season. I've taken the Reindeer and Tree from here and the Three Cam and Gear Box from here and made this paper automata. In a call back to one of my first ever designs I've called it the Hopping Reindeer.


All the parts that you need are in the downloadable file. Members can download for free, thanks for your support! Non members can download the parts at the link for £2.50

Print out the parts onto thin card (230gsm /67lb)

Score along the dotted and dashed lines then cut out the parts. The instructions are basically the same as the original models with a few small changes. Check out the reindeer and tree instructions here. The instructions for the base are here but check out the instructions below for some minor changes to the original.


Here's the completed cam shaft, note that the third cam now has three lobes.


Here's the cam shaft and gear fitted into place.


The slightly redesigned cam followers now have a triangular end to more closely follow the cams.


With the box upside down the cam fits in here.


The push rod is slightly long and fits to the cam follower like this.


All three cam followers fitted into place.


Make up three reindeer.


Glue them to the ends of the pushrods.


Turn the handle and delight at the Hopping Reindeer! Festive Felicitations one and all!

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< | >

Three Cams and Gear

£2.50

Your rating: None (6 votes)

Three cams and gear box - Turn the handle and the gear turns, driving the cam shaft and the three cams. Download and make this Essential Mechanism as a exercise in pure mechanism or as the starting point for your own character based paper animation.


Print out the parts onto thin card (230gsm /67lb) I used coloured card for a colourful model but you could use white card or print a pattern onto a sheet of plain card before printing out the parts.


The gears are made from double thickness card. Fold them over and glue them together. Once the glue is dry carefully cut them out.


Fit the short axle tube into the pinion gear lining it up with the grey line.


Glue the cam shaft to the large gear.


Fold over and glue down the cams to make double thickness card.


Fit the cams to the cam shaft arranging them so that they are offset by 120 degrees.


Roll up and glue down the three axle tubes. Line up the edge of the tube part with the edge of the grey area and the points of the triangles..


Make up the box end.


Fold round and glue down the triangular tubes on the side of the box top and box base.


Fold in the sides of the box end and glue them down making right angled triangles


Glue the box end to the base - note that it glues to the end with the larger space on the triangular tabs.


Glue the box top to the box end.


Fold round and then glue in the other box end.


Glue down the flaps to complete the box.


Fit one of the short axle stubs into the cam shaft.


Fit the gear and cam shaft into the box then locate it into place with the other short axle stub.


Fit the pinion gear to the end of the long axle.


Assemble the handle in three steps.


Roll round and glue down the gear locater.


Fit the gear locater onto place so that the gear is held up against the box side but is still free to turn. Thread the long axle and pinion into place so that the pinion engages the large gear.


Glue the handle into place at the front of the box.


Assemble the three cam followers.


Fold over and glue down the three push rods make a double thickness shaft with a tab at each end.


Glue the push rod to the cam follower.


Fit the three cam followers into place using the grey areas for alignment.


And there it is! Click the picture below to see an animated version on Instagram.

 

Next time! I'll show how you can make this charming reindeer automata using this project and the reindeer paper toys from the previous post.

Three cams and gear box - Turn the handle and the gear turns, driving the cam shaft and the three cams. Download and make this Essential Mechanism as a exercise in pure mechanism or as the starting point for your own character based paper animation.


Print out the parts onto thin card (230gsm /67lb) I used coloured card for a colourful model but you could use white card or print a pattern onto a sheet of plain card before printing out the parts.


The gears are made from double thickness card. Fold them over and glue them together. Once the glue is dry carefully cut them out.


Fit the short axle tube into the pinion gear lining it up with the grey line.


Glue the cam shaft to the large gear.


Fold over and glue down the cams to make double thickness card.


Fit the cams to the cam shaft arranging them so that they are offset by 120 degrees.


Roll up and glue down the three axle tubes. Line up the edge of the tube part with the edge of the grey area and the points of the triangles..


Make up the box end.


Fold round and glue down the triangular tubes on the side of the box top and box base.


Fold in the sides of the box end and glue them down making right angled triangles


Glue the box end to the base - note that it glues to the end with the larger space on the triangular tabs.


Glue the box top to the box end.


Fold round and then glue in the other box end.


Glue down the flaps to complete the box.


Fit one of the short axle stubs into the cam shaft.


Fit the gear and cam shaft into the box then locate it into place with the other short axle stub.


Fit the pinion gear to the end of the long axle.


Assemble the handle in three steps.


Roll round and glue down the gear locater.


Fit the gear locater onto place so that the gear is held up against the box side but is still free to turn. Thread the long axle and pinion into place so that the pinion engages the large gear.


Glue the handle into place at the front of the box.


Assemble the three cam followers.


Fold over and glue down the three push rods make a double thickness shaft with a tab at each end.


Glue the push rod to the cam follower.


Fit the three cam followers into place using the grey areas for alignment.


And there it is! Click the picture below to see an animated version on Instagram.

 

Next time! I'll show how you can make this charming reindeer automata using this project and the reindeer paper toys from the previous post.

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< | >

Gears & Cams

£2.50

Your rating: None (4 votes)

Gears and Cam: an Essential Mechanism to download and make.
Members and Patrons can download the parts for free, non-members can join in the fun for £2.50 at the link. The 4:1 reduction gear makes the cam shaft turn nice and slow giving plenty of time for the cams to tell an interesting story. Use this project as exercise in pure mechanism or as the starting point for your own animated paper characters.


Print the parts pages onto thin card. (230gsm / 67lb) I used coloured card for a colourful model but you could use white card or card printed with a pattern design.


The gears and cams are made from double thickness card for added strength and durability. Fold them in half and glue them down making sure that tabs are not glued. Once the glue is dry carefully cut them out.


Make up the box sides, the triangular sections are right angle triangles. To ensure that the rectangle section is accurately made fold it flat as it is glued them fold it back into position.


Make up the other side with right angle triangle tubes.


The top and base are strengthened with equilateral triangle tubes.


Glue the top and base to the side with the rectangle tube. Note where the large cut outs are aligned.


Glue on the other side


Fold round and glue closed the box then glue down the flaps front and back ensuring that the box remains square.


Roll up and glue down the two axle tubes. Line up the ends as accurately as possible with the small triangles.


Glue the small end stop of the pinion axle.


Thread the pinion axle into place from inside the box.


Assemble the handle in three steps.


Fit the pinion to the handle. I left mine unglued to allow fine adjustments to positioning.


Glue the handle to the pinion shaft.


Glue the axle stub up through the back of the large gear then glue down the four flaps.


Glue the two cams to the cam shaft, line them up with the grey lines.


Position the large gear on the box then thread the long axle down through the axle stub...


...and through the camshaft so that it protrudes through the other side of the box. No glue needed, this is a friction fit.


The two gears should now mesh up nicely. You may need to move the pinion gear slightly for best effect.


Assemble the two cam followers


Assemble the two cam follower ends.


Glue the cam follower ends to the underside of the cam followers as shown.


Fit the cam followers into the box.


Make up the two push rods from double thickness card.


Thread the push rods down through the box top and glue them to the cam followers.


Ta daa! Turn the handle and the large gear turns slowly driving the cam shaft to tell its story.

Gears and Cam: an Essential Mechanism to download and make.
Members and Patrons can download the parts for free, non-members can join in the fun for £2.50 at the link. The 4:1 reduction gear makes the cam shaft turn nice and slow giving plenty of time for the cams to tell an interesting story. Use this project as exercise in pure mechanism or as the starting point for your own animated paper characters.


Print the parts pages onto thin card. (230gsm / 67lb) I used coloured card for a colourful model but you could use white card or card printed with a pattern design.


The gears and cams are made from double thickness card for added strength and durability. Fold them in half and glue them down making sure that tabs are not glued. Once the glue is dry carefully cut them out.


Make up the box sides, the triangular sections are right angle triangles. To ensure that the rectangle section is accurately made fold it flat as it is glued them fold it back into position.


Make up the other side with right angle triangle tubes.


The top and base are strengthened with equilateral triangle tubes.


Glue the top and base to the side with the rectangle tube. Note where the large cut outs are aligned.


Glue on the other side


Fold round and glue closed the box then glue down the flaps front and back ensuring that the box remains square.


Roll up and glue down the two axle tubes. Line up the ends as accurately as possible with the small triangles.


Glue the small end stop of the pinion axle.


Thread the pinion axle into place from inside the box.


Assemble the handle in three steps.


Fit the pinion to the handle. I left mine unglued to allow fine adjustments to positioning.


Glue the handle to the pinion shaft.


Glue the axle stub up through the back of the large gear then glue down the four flaps.


Glue the two cams to the cam shaft, line them up with the grey lines.


Position the large gear on the box then thread the long axle down through the axle stub...


...and through the camshaft so that it protrudes through the other side of the box. No glue needed, this is a friction fit.


The two gears should now mesh up nicely. You may need to move the pinion gear slightly for best effect.


Assemble the two cam followers


Assemble the two cam follower ends.


Glue the cam follower ends to the underside of the cam followers as shown.


Fit the cam followers into the box.


Make up the two push rods from double thickness card.


Thread the push rods down through the box top and glue them to the cam followers.


Ta daa! Turn the handle and the large gear turns slowly driving the cam shaft to tell its story.

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< | >

Gears in Their Place

Your rating: None (3 votes)

The downside of the gear box in the Frankie model was that those lovely gears were hidden away inside the box. Not this time! I've put together a box for the 9/37 gears with the gears upfront and personal. Looking good - though I do say so myself. And it runs beautifully smoothly.


Here's the view from the back showing the pinion mount section. There's plenty of room on that pink cam shaft for two or three cams. That'll be the next step.

The downside of the gear box in the Frankie model was that those lovely gears were hidden away inside the box. Not this time! I've put together a box for the 9/37 gears with the gears upfront and personal. Looking good - though I do say so myself. And it runs beautifully smoothly.


Here's the view from the back showing the pinion mount section. There's plenty of room on that pink cam shaft for two or three cams. That'll be the next step.

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< | >

4:1 Gear Box Experiment

Your rating: None (2 votes)

After the mechanical success of the gearbox in the Frankie model I thought I'd try an even larger reduction ratio. I've gone with a thirty seven tooth gear meshing with a nine tooth pinion. If it had been thirty six and nine the ratio would have been exactly four to one. I've added the extra tooth so that the same teeth don't mesh together all the time.


The small gear in a drive chain is know as a pinion. In this case the pinion has nine teeth.


They fit together at ninety degrees to each other something like this. There will be a box holding them in alignment.


I'm planning on fitting them like this so that the axle from the large gear is running level. It can then be used to drive a couple of cams.

With four turns of the handle to each turn of the large gear it should be possible to fit a reasonably long 'story' into this mechanism.

Next up - fitting it in a box

After the mechanical success of the gearbox in the Frankie model I thought I'd try an even larger reduction ratio. I've gone with a thirty seven tooth gear meshing with a nine tooth pinion. If it had been thirty six and nine the ratio would have been exactly four to one. I've added the extra tooth so that the same teeth don't mesh together all the time.


The small gear in a drive chain is know as a pinion. In this case the pinion has nine teeth.


They fit together at ninety degrees to each other something like this. There will be a box holding them in alignment.


I'm planning on fitting them like this so that the axle from the large gear is running level. It can then be used to drive a couple of cams.

With four turns of the handle to each turn of the large gear it should be possible to fit a reasonably long 'story' into this mechanism.

Next up - fitting it in a box

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< | >

Frankie

Your rating: None (8 votes)

£2.50

Frankie: A terrifyingly friendly monster to download and make. Turn the handle and the reduction gear give Frankie a particularly shambling gait.

Members and Patrons can download and make Frankie free. Thanks for your support! Non-members can join in the fun for £2.50.


Print out the parts onto thin card. (230gsm / 67lb) Notice that the all coloured pages apart from sheet seven are printed on both the front and the back. Print one side, flip the sheet over and return it to the printer before printing the back. Score along all the dotted and dashed lines and cut out the holes before carefully cutting out the pieces.


Some of the parts are made from double thickness card. Fold them over and glue them down. Once the glue is dry carefully cut them out.

The pinion.


The main gear.


The cams


Fit the gear to the square cam shaft.


Fit the cams to the cam shaft lining them up with grey lines. Note that one faces one way and the other the other way.


Roll up and glue down the two axle tubes lining up the ends as accurately as possible.


Fit the gear axle into the cam shaft.


Fit the pinion to the short axle stub lining it up with the grey line.


Fold round and glue the box side as shown.


Roll round and glue the tabs on the box top and box base to make triangular tabs. Glue thetop and base to the box side as shown. Notice that the triangular tubes on the top and base are furthest away from the box end.


Assemble the box side with right angled triangle tubes and glue it to the box top.

Fit the gear into the hole in the box end.


Fold the box round threading the other end of the axle into position then glue the box closed.


Glue down the flaps from the box top and base.


Assemble the gear locator tube by curving it round and gluing it down


The gear locator rests gently against the gear holding it flat against the box. Thread it into place inside the box and glue it into position.


Assemble the handle in three steps.


Glue the pinion to the pinion axle.


Thread the pinion axle into place so that it meshes with the gear.


Glue the handle to the other end of the axle.


Assemble the two leg stands.


Fit the two leg stands into the box.


Assemble the two cam followers.


Fit the cam followers into the box.


Fold over and glue the two push rods so that the centre section is double thickness.


Glue the push rods to the cam followers so that they thread up through the holes in the box top.


Wrap two pennies (20mm diameter 4 gram weight coin) tightly in scraps of card. Assemble the feet and glue a penny into each one.


Roll round and glue up the legs.


Glue the feet to the legs.


Thread the legs down over the leg stands and glue the ends of the push rods to the soles of the feet.


Assemble the hair.


Glue the nose to the head then roll round the head and glue it down.

Glue the neck front to the inside of the head lining it up as shown. Glue only on the grey area.


Assemble the body


Shape the arms


Fit the arms in the body.


Fit the head to the body and glue on the ears.


Fit the hair into place.


Finish the model by dropping the body onto the legs. Gravity holds it into position.

Turn the handle to see Frankie shamble!

Frankie: A terrifyingly friendly monster to download and make. Turn the handle and the reduction gear give Frankie a particularly shambling gait.

Members and Patrons can download and make Frankie free. Thanks for your support! Non-members can join in the fun for £2.50.


Print out the parts onto thin card. (230gsm / 67lb) Notice that the all coloured pages apart from sheet seven are printed on both the front and the back. Print one side, flip the sheet over and return it to the printer before printing the back. Score along all the dotted and dashed lines and cut out the holes before carefully cutting out the pieces.


Some of the parts are made from double thickness card. Fold them over and glue them down. Once the glue is dry carefully cut them out.

The pinion.


The main gear.


The cams


Fit the gear to the square cam shaft.


Fit the cams to the cam shaft lining them up with grey lines. Note that one faces one way and the other the other way.


Roll up and glue down the two axle tubes lining up the ends as accurately as possible.


Fit the gear axle into the cam shaft.


Fit the pinion to the short axle stub lining it up with the grey line.


Fold round and glue the box side as shown.


Roll round and glue the tabs on the box top and box base to make triangular tabs. Glue thetop and base to the box side as shown. Notice that the triangular tubes on the top and base are furthest away from the box end.


Assemble the box side with right angled triangle tubes and glue it to the box top.

Fit the gear into the hole in the box end.


Fold the box round threading the other end of the axle into position then glue the box closed.


Glue down the flaps from the box top and base.


Assemble the gear locator tube by curving it round and gluing it down


The gear locator rests gently against the gear holding it flat against the box. Thread it into place inside the box and glue it into position.


Assemble the handle in three steps.


Glue the pinion to the pinion axle.


Thread the pinion axle into place so that it meshes with the gear.


Glue the handle to the other end of the axle.


Assemble the two leg stands.


Fit the two leg stands into the box.


Assemble the two cam followers.


Fit the cam followers into the box.


Fold over and glue the two push rods so that the centre section is double thickness.


Glue the push rods to the cam followers so that they thread up through the holes in the box top.


Wrap two pennies (20mm diameter 4 gram weight coin) tightly in scraps of card. Assemble the feet and glue a penny into each one.


Roll round and glue up the legs.


Glue the feet to the legs.


Thread the legs down over the leg stands and glue the ends of the push rods to the soles of the feet.


Assemble the hair.


Glue the nose to the head then roll round the head and glue it down.

Glue the neck front to the inside of the head lining it up as shown. Glue only on the grey area.


Assemble the body


Shape the arms


Fit the arms in the body.


Fit the head to the body and glue on the ears.


Fit the hair into place.


Finish the model by dropping the body onto the legs. Gravity holds it into position.

Turn the handle to see Frankie shamble!

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