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Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Portable, collapsible reprap

by larsie Dec 15, 2011
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I have mentioned printrbot in the description: "It's sort of a derivative of printrbot I guess, but all the files are mine. " Not sure if it's counted as a derivative if it's a 'reverse engineered', such as LEGO bricks and other things here that are copied versions of other stuff... but the printrbot designer deserves the credit for his part of the design, which I'm giving him. Though I think he should post it, that's up to him. If he doesn't... we'll use his ideas and build on them anyway.

Unless it is built from the same files it is NOT inherently a derivative.

Its hard to have a derivative when theres nothing to base it on, until printrbot files are released it would be tough to even give credit to the printrbot.

Seconded on the rail free design, I bet you could get a bed to slide on little more than 608 bearings and some very basic guide rails around them. Think sliding desk drawer...

Maybe I could just clip on the bearings somehow...

It could be based on some linear gear system as well. Such as http://www.thingiverse.com/thing:3554http://www.thingiverse.com/thi... or http://www.thingiverse.com/thing:14537http://www.thingiverse.com/thi...... With that, one could just push it in. I guess it'd need bearings to hold it place though.

laser cut CNC linear axis
by peter_
Reprap Rack and Pinion axis drive system

I'm working on that right now. I'm modifying my design from here: http://www.thingiverse.com/thing:9190http://www.thingiverse.com/thi... to work as the Y-Axis.

Printable X/Y Linear Rail

A printable alternative to bearings could be to have two C profile beams which are the depth of the printer. These would be placed so that the bed would run between the two.

For smoothness, line the inside of each beam with felt (felt bushings have been used on prusjar mendels)

An alternative to flipping the bed would be to have the bed without rails, and have it glide back and forth on bearings. When the printer needs to be compact, just pull the bed out and clip onto the side.

Example: http://www.youtube.com/watch?v=fv7AguYO8vshttp://www.youtube.com/watch?v...

That was a surprise to click on a link to find that it led to my video! haha.

Nice video. Printer looks great. Yes... that might be an idea to reuse.

I'm planning to do something similar to that with mine. I want to get the machine working first, but I plan to throw out most of the bottom section to replace it with a design I've been thinking about for a long time that will work a lot like that.