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Sam's Gears

by pleppik, published

Sam's Gears by pleppik Sep 22, 2012

Featured Thing!

Description

My nephew Sam has a birthday coming up, so I designed and made him this gear toy. This set has gears of multiple sizes and lets you stack gears together so you can make different gear ratios. For the base you can either print out the included base, or use a sheet of pegboard from the hardware store to go really big.

Recent Comments

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The base pieces have fairly tight tolerances, so if you're having problems fitting them together it may be that your printer is just a little too sloppy. You can try sanding or filing the edges a bit.

As an alternative, this is sized so you can use ordinary pegboard from the hardware store as a base. That may give you better results.

Really beautiful parts. I found the holes were too small to get the pegs into however, and the puzzle edges don't really fit together. maybe a version with larger holes and no puzzle edges? I could maybe simply glue the mini boards together as need.

A good website to look at:
woodgears.ca/gear_cutting/temp...
made for creating wooden gears, but you can adjust it to portray a wide variety of gears.

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License

Sam's Gears by pleppik is licensed under the Creative Commons - Attribution license.

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Instructions

Print as many of the parts as you like, in whatever colors you like. Assemble.

All parts print without support.

The available parts are:

1. Gears: 1, 2, 3, and 4 inch diameters. Each diameter has a different design, and the gears can stack and lock together vertically.

2. Plates: 2 and 4 inch square plates serve as the base for building. Plates lock together to make larger layouts. You can also use commercial pegboard from the hardware store, but note that pegboard has holes spaced at 1" intervals instead of 1/2", so pegboard won't allow even-sized gears to mesh with odd-sized gears.

3. Pegs: 1, 2, 3, and 4 cm length pegs serve as the axles for the gears. The split end of the peg fits into the base plate, and gears stack onto the solid end

4. Spacers: Spacers are like gears without any teeth, and let you stack gears without meshing with a neighboring gear. The Spacer With Pegs locks onto the gear above so all the gears in a stack turn together; the Spacer No Pegs lets you build a stack of gears which can turn independently.

5. Crank: The crank fits on top of a gear (3" and 4" work best) to give you a handle to turn it with.

UPDATED 9/24: I've added simplified versions of the two plates which should slice and print significantly faster. I left the original versions in place in case you like the aesthetics of the exposed ribs.

Comments

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MatrixArchitect on Oct 12, 2013 said:

Really beautiful parts. I found the holes were too small to get the pegs into however, and the puzzle edges don't really fit together. maybe a version with larger holes and no puzzle edges? I could maybe simply glue the mini boards together as need.

pleppik on Oct 16, 2013 said:

The base pieces have fairly tight tolerances, so if you're having problems fitting them together it may be that your printer is just a little too sloppy. You can try sanding or filing the edges a bit.

As an alternative, this is sized so you can use ordinary pegboard from the hardware store as a base. That may give you better results.

ThePelton on Jul 6, 2013 said:

A good website to look at:
woodgears.ca/gear_cutting/temp...
made for creating wooden gears, but you can adjust it to portray a wide variety of gears.

mrbohun on Apr 17, 2013 said:

What infill % do you recommend? I'm going to use these in my Science 8 class.

pleppik on Apr 17, 2013 said:

I printed them with a very loose fill, just to save time and plastic. The design should be fairly forgiving and print well on most reasonable settings.

LeadCarbonate on Nov 24, 2012 said:

The posts that link the gears together are VERY tight when sliced in RepG (defaults) and printed on a Rep2.  Anybody else seeing this issue?

ThePelton on Oct 17, 2012 said:

If you made a couple of planetary ring gears (rings with teeth on the inside), and had pencil holes in the gears, they could be used to make pencil rosettes in a hundred different ways just like the old spirograph.

MacGyver on Sep 28, 2012 said:

I got the 2" gear to print right after I imported it into sketchup and removed the two lines halfway down the shafts that seemed to cause my slicing problem.

msmollin on Sep 28, 2012 said:

Did you post this as a derivative? My printer is currently undergoing an upgrade, but I plan to print these once I'm back up and running :) 

laird on Sep 27, 2012 said:

Like isn't a strong enough word. These are awesome! I have a big bag of magnets, which now I know I must glue to the back of these to stick on the fridge. Time to print!

hlbrosnihan on Sep 27, 2012 said:

Wonderful Concept! A great skill to teach him. Hats off to you!

ThePelton on Sep 26, 2012 said:

You need to have toothed gears from 5 or 6 to about 104, so he can learn how gears work.

AlexF1980 on Sep 24, 2012 said:

Any chance of uploading these files in a .zip?

pleppik on Sep 25, 2012 said:

Done.

MikeDX on Sep 23, 2012 said:

This is truly a joy to print and play with. I'll get some pics up soon! :) Thank you!

MikeDX on Sep 24, 2012 said:

 Ok, so the gears silce and print wel.. but I cant get the Plates to slice. 90 minutes in slic3r and still nothing :(

mtdna on Sep 23, 2012 said:

Best. Uncle. Ever.

Ushanka on Sep 23, 2012 said:

I can't handle it, these just look so WHIMSICAL

MarcusWolschon on Sep 23, 2012 said:

Very nice gears!
Where are the source files you generated the STL from?

MacGyver on Sep 23, 2012 said:

The 4 inch plate is broken or it just doesn't render in RepG.  Will you reupload it? I'm suspecting I'll have the same problem with the 2 inch gear since Thingiverse can't render that one either.

I've been able to print out several of the other pieces though.

pleppik on Sep 23, 2012 said:

Try it now. I regenerated both STLs and ran them through NetFabb. NetFabb now approves.

booktinker on Sep 23, 2012 said:

This is very cool!  I have two nephews of my own where I am introducing them to some building toys.  When I finally finish my printer, I am going to print this out. 

IcanCwhatUsay on Sep 23, 2012 said:

What printer do you use?

pleppik on Sep 25, 2012 said:

Up Plus

CodeCreations on Sep 22, 2012 said:

This is just awesome. 

zheng3 on Sep 22, 2012 said:

I like the squiggly crank handle.

MacGyver on Sep 27, 2012 said:

I'd like it more if there was a smaller version for the other gears.  

MichaelAtOz on Sep 22, 2012 said:

:^}

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