Chopsticks - 225mm continuous print.

by relet, published

Chopsticks - 225mm continuous print. by relet Feb 21, 2011
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Chopsticks - 225mm continuous print. by relet is licensed under the Public Domain license.

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Because the world needs more chopsticks.

This is a three part print meant to produce a single continuous object, a food implement, and a simple test case for this kind of printing objects that exceed your platform extents.

Public domain, because sharing is caring.
Feel free to flattr this if you can finally eat your ramen.


Print part 1 (raftless and without outline). Remove.

Print the first layer of part 2. Use this to position part 1 and fix it to the platform. Make sure the underside of the beveled edge of part 1 lies flat on the platform.

Remove the first layer, then print the whole of part 2 with part 1 fixed on the platform. When you are finished printing, you can straighten the still heated object a little. Let cool.

Repeat the procedure for part 3 and parts 1+2 (now a single unit).

Repeat the whole process unless you are enlightened enough to Eat With One Chopstick Only.

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If you edit the gcode you could find the first occurance of (
gt;) and add a M1 pause.

I'm not too familiar with gcode yet - that would pause the head until a key is pressed?

So far, I fared well with the manual stops. It requires a bit of handywork anyway. To fully automate this technique, I'd rather want to attach a stepper motor to the conveying belt and move it forward a bit whenever a diagonal layer is printed.

This is clever, and while it may be a humble chopstick, I predict others will find many uses for this technique. I had wondered how it could be done, myself -- it didn't occur to me it's as simple as making the first part beveled to fit under the head. Very clever indeed.

Thanks. The technique has some limitations

  • first, the bevel has to be at a flatter angle than the print head's shape, for clearance.

  • it also has to be relatively flat to allow the layers to stick well together. Unless you align everything perfectly, there might be a number of small horizontal gaps - so adhesion is best in the vertical direction. If there is room, you should consider to have a larger flat area for optimal adhesion.

With higher prints, you will really want to think about clearance, since you cannot have a 1:2 bevel across the whole platform. I hear some people even manage to hit the bolts on their platform. :-D

cool ingenious and quite a dexterity ;)

It's really easy to align the parts after printing the first layer, really.