Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!
Working Gear Shifter
by Gromfrog, published
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We have designed Brake Disks and Shock absorbers for cars and now we wanted a challenge, over the course of one weekend we have worked on this working gear shifter with 5 gears and reverse.
More info here: http://gromfrog.com
We used the Concentric spinny thing from Fluffy to keep the stick in place while you can through the gate.
[Update :: 19:21 GMT 25th March 2013] We have made a modification suggested by Sirmakesalot and have combined parts 7 and 8 to make a much easier print and less assembly too. To use this new part you need to make sure it is 74mm below the bottom of the top part which is PART 6 (we have also removed the holes on this for the previous fixture). The new part is label PART 8 V2 and you need to print it similar to all other parts and just make sure you place it 74mm below PART 6 on the support rods. We also are looking in to making a simple gear box which you can control with this shifter and we have started working out the gears. We are hoping to have this finished in a couple of weeks.
Print all the parts with around 10% infill but higher on the gate part which we suggest at around 30%. We also suggest you print with a raft and support or most of the parts due to overhangs. You may also have to scale parts down to fit your printer but remember to scale all the parts equally so they fit perfectly. Some sanding may be required to fit some parts together and glue will be required to hold some parts together too.
You need to print the following quantities of parts:1
1X PART 1
1X PART 2
1X PART 3
1X PART 4
1X PART 5
1X PART 6
1X PART 7
1X PART 8
4X PART 9
4X PART 10
1X PART 11
1X PART 12
1X PART 13
1X PART 14
1X PART 15
1X PART 16
1X PART 17
1X PART 18
see the labeled diagram to assemble. you will need to place glue in most of the joints to keep them from moving.
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Working Gear Shifter by Gromfrog is licensed under the Creative Commons - Attribution license.
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