CoreXY questions Hello everyone. I have started thinking about building my new machine with CoreXY kinematics, and build volume 400x400x400mm. I am thiking about box frame made out of 2020 aluminum extrusions. Estimated frame box size would be 600x600x600mm or so. I will be using bowden extruder, Hiwin MGN12 rails and carriages for motion. My main question would be if the frame is sturdy enough for my machine? Or should i go straight to 4040 or 2040 extrusions? Thanks https://reprap.org/forum/read.php?397,561707,561707#msg-561707 Sat, 07 Mar 2026 13:33:06 -0500 Phorum 5.2.23 https://reprap.org/forum/read.php?397,561707,562748#msg-562748 Re: CoreXY questions https://reprap.org/forum/read.php?397,561707,562748#msg-562748 www.youtube.com] I do not know if its rigid enough but they seem to be moving it around to expos. And it seems that they are even using printed brackets to connect the extrusions and that would be the weak point.]]> Edvardas CoreXY Machines Fri, 25 Sep 2015 20:09:06 -0400 https://reprap.org/forum/read.php?397,561707,562608#msg-562608 Re: CoreXY questions https://reprap.org/forum/read.php?397,561707,562608#msg-562608
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Capinho
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filipeCampos
I have build an corexy using 20x20, the size of the printer is 40x40x52 cm. I have used 4 bars 20x20 for each side, two of this bars are very close of the corexy mechanism. Was result the structure of the printer is very rigid and i can say is overkill. For your case it will sure work very well.

You can use 20x40 instead of 2 bars 20x20 , the price will be almost the same. The price of 20x40 is a lot more of the 20x20 but you need less connectors. But both solutions will work.

Can you share a pic of your machine?

All the info you need is where:
[www.thingiverse.com]]]> filipeCampos CoreXY Machines Fri, 25 Sep 2015 12:59:39 -0400 https://reprap.org/forum/read.php?397,561707,562547#msg-562547 Re: CoreXY questions https://reprap.org/forum/read.php?397,561707,562547#msg-562547
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filipeCampos
I have build an corexy using 20x20, the size of the printer is 40x40x52 cm. I have used 4 bars 20x20 for each side, two of this bars are very close of the corexy mechanism. Was result the structure of the printer is very rigid and i can say is overkill. For your case it will sure work very well.

You can use 20x40 instead of 2 bars 20x20 , the price will be almost the same. The price of 20x40 is a lot more of the 20x20 but you need less connectors. But both solutions will work.

Can you share a pic of your machine?]]> Capinho CoreXY Machines Fri, 25 Sep 2015 10:49:06 -0400 https://reprap.org/forum/read.php?397,561707,562026#msg-562026 Re: CoreXY questions https://reprap.org/forum/read.php?397,561707,562026#msg-562026
You can use 20x40 instead of 2 bars 20x20 , the price will be almost the same. The price of 20x40 is a lot more of the 20x20 but you need less connectors. But both solutions will work.]]> filipeCampos CoreXY Machines Thu, 24 Sep 2015 06:47:59 -0400 https://reprap.org/forum/read.php?397,561707,561778#msg-561778 Re: CoreXY questions https://reprap.org/forum/read.php?397,561707,561778#msg-561778
You'll probably want to upsize the rails at last to 2040 profile
which will brings a lot of lateral stability.
Maybe you can keep the 2020 for the stiles.

++JM]]> J-Max CoreXY Machines Wed, 23 Sep 2015 15:22:47 -0400 https://reprap.org/forum/read.php?397,561707,561727#msg-561727 Re: CoreXY questions https://reprap.org/forum/read.php?397,561707,561727#msg-561727
At a minimum, use 2040 for the beams that need it.]]> gmh39 CoreXY Machines Wed, 23 Sep 2015 13:36:02 -0400 https://reprap.org/forum/read.php?397,561707,561707#msg-561707 CoreXY questions https://reprap.org/forum/read.php?397,561707,561707#msg-561707 Estimated frame box size would be 600x600x600mm or so. I will be using bowden extruder, Hiwin MGN12 rails and carriages for motion.

My main question would be if the frame is sturdy enough for my machine? Or should i go straight to 4040 or 2040 extrusions?
Thanks]]> Capinho CoreXY Machines Wed, 23 Sep 2015 12:57:52 -0400