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candy dispenser

by ssd May 13, 2010
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I really like this design. My printer did a horrible job printing (issues I've since resolved) but thanks to the loose tolerances it works great. I used the version with the spring.

Alternate idea: Rather than having to pull out on the handle and releasing to drop a candy, what if you had to press the handle in for a candy to drop? That way you could hold the machine in one hand and have the candy drop into your palm.

I might misremember, but I think one of the remixes does exactly that.

A ramp so the candy comes out the front would be a good alteration to this.

I was trying to print this on my makerbot. I'm having troubles with print the top portion. Specifically the layer that spans the whole cylinder across the top of the dove tail slots. Want suggestions on skeinforge settings?

I got lucky and mine worked. I think skeinforge does this one wrong. Might be able to fix it by messing with settings or something. I'll experiment when I have time.

Ironically, I think if you turn off the bridge code (carve -
gt; infill in direction of bridges) it does a better job of briding! Where do we go to report skeinforge bugs?

This is a great thing to print to show what a 3d printer can do. My co-workers were amazed that the dovetails worked.

Thanks for uploading this!

I've done experiments with the dovetail joints and used them in a lot of other parts I've made (but not published).

Your enthusiasm of just that one feature makes me wonder if I should go back and publish all of my (successful) experiments.

The key to the working dovetail joint is very careful tolerances.
If there are zero tolerances, it's too hard to get them to go together. In one experiment, I gave wide to
lerances on one end and zero on the other. The result was you could only get it in on the wide side, but with some force, it could be pushed all the way down. I probably should have done that with this part, but opted for a simpler model instead.

Wow, this is great. I wonder how you could add some kind of spring mechanism to return the slide to it's original position.

I considered adding a spring. There is room to add a spring that would force the button out. I was thinking a short slot in the back of the slide, and maybe a hole for a paperclip guide or something. If I have time, I'll experiment with it, and if it works, upload a revision.

Pen springs could be the stuff that would work on something of this size...

I've added a version that has room for one or two pen springs! (Just did final testing tonight or I would have posted sooner.) Next I might work on a revised top that takes a small bottle.