Sam's Gears
Description
Instructions
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.
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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?
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.
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.
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!
Wonderful Concept! A great skill to teach him. Hats off to you!
You need to have toothed gears from 5 or 6 to about 104, so he can learn how gears work.
This is truly a joy to print and play with. I'll get some pics up soon! :) Thank you!
Very nice gears!
Where are the source files you generated the STL from?
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.
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.
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What infill % do you recommend? I'm going to use these in my Science 8 class.
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.