I'm looking at all the different CoreXY designs out there, trying to find one that will fit my needs. The Eclips3D looks very close, however I'm surprised that it's got a cantilevered bed.
Is there a way to add some more smooth rods to more firmly locate the bed? I'm concerned that the accuracy will suffer when printing close to the front edge of the build plate, as any tiny movement at the existing smooth rods will be magnified.
Also, has anyone enclosed and heated the chamber inside? Do the printed parts lose their shape when heated to, say, 50 degrees? I have a Kossel Mini that has this problem, and I'd like to avoid it with my next printer.
Hey, Thanks for your interest! Yes the bed is cantilevered, but all axes use M10 hardened steel shafts in order to minimize any error. Additionally, the z axis uses precision linear bearings from Misumi so they are very tight against the shafts, resulting in very little flex in the z gantry despite it being cantilevered.
It may be possible to add more smooth rods, but because of the design it won't be too simple as there isn't much space to add more linear bearings. However you really shouldn't need more, it is plenty rigid as it is!
The printed parts are made from PLA in the kits I sell, so they likely would not handle 50*C chambers too well. You could always print some parts yourself out of ABS or PETG which would handle the temperatures much better, and you can print the full set of parts for the printer in less than 15 hours (possibly closer to 10 depending on print settings).
Let me know if you have any further questions! -Andrew