PVC frame CoreXY

My first build from scratch...12"x18"x18" build volume. You can get it here: [www.thingiverse.com]

nice job.

"you will spend many contemplative hours......"

only those who've spent the hours know how funny that is.

Well done!

I had the PVC-brackets on my watch list for a CNC mill, but was never happy with the 4-pipe layout.
My gut feeling tells me: 3 pipes would be more rigid...

How does the calibration hold when room temperature changes? I'm pretty sure, it would benefit from a temp-controlled enclosure.
-Olaf

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o_lampe
Well done!

I had the PVC-brackets on my watch list for a CNC mill, but was never happy with the 4-pipe layout.
My gut feeling tells me: 3 pipes would be more rigid...

How does the calibration hold when room temperature changes? I'm pretty sure, it would benefit from a temp-controlled enclosure.
-Olaf

I abandoned the 3 pipe layout because the geometry was getting too weird for me to model in Tinkercad. The corner pieces are a lot easier to model and print with 4 pipes.

Calibration stability is unknown at this time; project is on hold while I optimize the wiring. Initial tests indicate the overall strength and rigidity of the frame is fine.

Frankly, this printer is too big for my studio apartment; I'm losing too much "walk around" room. I may strip it down and make a more modest sized unit, or just replace the PVC pipe with aluminum extrusion which would reduce the size somewhat. As a proof of concept it works well, and I've gotten a good understanding of CoreXY kinematics.

I won't call it a success until it runs a few multi-day prints ;-)

Why did you use multiple smaller pipes instead of a single, larger diameter (maybe 3") pipe?

---

Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]

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the_digital_dentist
Why did you use multiple smaller pipes instead of a single, larger diameter (maybe 3") pipe?

Easier to ensure structural members are straight, easier to cut the smaller size, and easier to align because the printed parts won't rotate around the pipe.

And I had a bunch on hand;-)

Have you considered swapping the PVC for steel conduit or aluminum tube?

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epicepee
Have you considered swapping the PVC for steel conduit or aluminum tube?

No, but I plan to redesign the parts so they could clamp on metal tubing (instead of using drilled holes). Unless someone does it first ;-)

I am impressed.