Build a mechanism that can push the extruderbutton on the 3d pen. When you use two different motors, the code won't work propperly and your prints will fail.ĥ. The code is programmed to work with two the same motors, because the medium and large motor move at a different speed. Make sure you use two the same motors with the same transmissions to move your platform.

(I haven't done this, but i should have) I recommend only one transmission per axis, as the platform would go to slow if you made more transmissions.Ĥ. To address this issue, a team of scientists at Cardiff University in Wales decided to build their own low-cost, accessible bioprinter using Lego bricks, capable of creating human tissue samples. If you work with gears, make a gear transmission, that reduces the amount the platform moves, in all three directions. 1 day ago &0183 &32 JSourcing human tissue samples for scientific research is becoming increasingly challenging due to limited supply and restricted availability. Another option is to move the platform with linear actuators attached to the middle of a side.ģ. You can simply make an axle going underneath the platform and connect it to the platform with some gears. Don't try moving it with just one gear on one side, because the platfom won't move in a straight line, and may get stuck. Move your platform from two opposite sides per axis.

Make sure you build a solid structure, because the smallest amount of movement, will make a big difference in the end result.Ģ. I'm not going to link building instructions, as my 3D printer isn't the best design possible.There are a lot of improvements to be done! If you haven't build your LEGO Mindstorms 3D printer yet, here are some tips:ġ.

Lego mindstorms 3d builder