Printrbot LC X Carriage Printed Part Conversion

by cjellwood, published

Printrbot LC X Carriage Printed Part Conversion by cjellwood Sep 22, 2012
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Lose the old X carriage and replace it with the original printed part (modified design). At the same time replace the X Beam to move the endstop further to the left in a more comfortable position and for more build space.



Remove the old X carriage and X beam. Fit the new X beam and secure endstop in new position with M2.5 bolts. Slide on the new X carriage and position belt with clamp. Done!

Of course you will need the original PB Extruder Mount which is included here in the files for your convenience.

The new X Beam just has the endstop holes moved so just drill the new holes carefully if you cant source a new laser cut part. The new X Carriage part has a small notch for hitting the newly placed endstop which must coincide with eachother obviously.

The new black front securing plates shown in the pic are just so I can use M3.5x37 countersunk bolts in my design and are not essential to this mod.

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I like this. I am working out the details to apply a similar change to my huxley.

So...not declaring is as a derivative?

My opinion is that the entire top X section need re-thinking because the ends bend in like a crossbow when the belt is pulled together. It is just a slight bowing at first but gets worse over time. Really there should be two paralell beams rather than just one Or redesign it so the smooth rods cover the entire distance of the beam to double as re-enforcement to stop it bowing. After such a mod then yes, perhaps.  The printrbot is a very promising simple design that I think should get lots of attention. My hat off to Brook for inspiring me to build and modify my first bot!