Howdy! Kinda new to the whole corexy genre. been playing with "simple" Cartesian printers so far. I'm looking to build a new printer, I aim to use 3 different materials which are extruded via big and heavy print-heads. The printed model will be heavy thus my thoughts on a core xy with Z axis bed (double Z). Because the print-heads are to be heavy and bulky I wish to have each print-head on it's own gantry - and not all 3 on the same one. So, question is what type of corexy am I looking at here? basically its a 3 gantry corexy, print-heads should work one after the other and not simultaneously. Because I haven't really built a corexy so far it would be best if any suggestions pop-up regarding an existing design that I can upgrade as needed. or something in that manner... Thoughts? Cheers! https://reprap.org/forum/read.php?397,860533,860533#msg-860533 Mon, 14 Sep 2026 22:22:50 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?397,860533,860842#msg-860842 https://reprap.org/forum/read.php?397,860533,860842#msg-860842 2 ballscrews per side. One rail per side on Y axis.
X motors travel on individual gantries.
Probably a more elegant way to arrange them.
[attachment 112987 4xGantry.jpg]]]> prot0typ1cal CoreXY Machines Tue, 15 Oct 2019 02:08:26 -0400 https://reprap.org/forum/read.php?397,860533,860790#msg-860790 https://reprap.org/forum/read.php?397,860533,860790#msg-860790
not sure if totally understand the configuration you suggested.. ball screws I get, not sure the setup you propose.]]> CJ.BRAVO CoreXY Machines Mon, 14 Oct 2019 05:40:52 -0400 https://reprap.org/forum/read.php?397,860533,860769#msg-860769 https://reprap.org/forum/read.php?397,860533,860769#msg-860769 Belt stacking is also going to be a challenge.

Because of the mass of the head you may be better off using ball screws.
Above and below Y rails could make four gantries possible.
With travelling X motors on the end with the Y nut.]]> prot0typ1cal CoreXY Machines Sun, 13 Oct 2019 16:22:10 -0400 https://reprap.org/forum/read.php?397,860533,860687#msg-860687 https://reprap.org/forum/read.php?397,860533,860687#msg-860687 dc42 CoreXY Machines Sat, 12 Oct 2019 06:14:10 -0400 https://reprap.org/forum/read.php?397,860533,860664#msg-860664 https://reprap.org/forum/read.php?397,860533,860664#msg-860664
I've attached an edited cad file based on Divyam C Parmars' "3d printer corexy model all metal" ( [grabcad.com] ).

Basically I need the bed in Z axis because the printed model will be heavy and material is flexible. I'm aiming for 3 bulky and heavy print-heads. lets say each print head might weigh around 2-3 kg. so I'll probably use MGN 9/12 rails for Xs and Ys.

Because I've never really built a printer from scratch I'm looking a suggestions on 'how-to's and fitting for this kind of setup. Any thoughts on motors for this? regarding the firmware, I guess a standard Cartesian with tool offsets should do the trick?


Cheers!]]> CJ.BRAVO CoreXY Machines Fri, 11 Oct 2019 16:09:54 -0400 https://reprap.org/forum/read.php?397,860533,860566#msg-860566 https://reprap.org/forum/read.php?397,860533,860566#msg-860566
Mike]]> leadinglights CoreXY Machines Thu, 10 Oct 2019 04:20:37 -0400 https://reprap.org/forum/read.php?397,860533,860552#msg-860552 https://reprap.org/forum/read.php?397,860533,860552#msg-860552 dc42 CoreXY Machines Wed, 09 Oct 2019 16:55:00 -0400 https://reprap.org/forum/read.php?397,860533,860549#msg-860549 https://reprap.org/forum/read.php?397,860533,860549#msg-860549
It's unlikely anyone can point you at an existing design that will work because 1) you provide almost no information about what you're trying to do and 2) it sounds like you're trying to do something unusual.

You're going to have to do some design and development yourself.

Don't worry, it won't kill you.]]> the_digital_dentist CoreXY Machines Wed, 09 Oct 2019 16:43:16 -0400 https://reprap.org/forum/read.php?397,860533,860545#msg-860545 https://reprap.org/forum/read.php?397,860533,860545#msg-860545 CJ.BRAVO CoreXY Machines Wed, 09 Oct 2019 15:55:53 -0400 https://reprap.org/forum/read.php?397,860533,860542#msg-860542 https://reprap.org/forum/read.php?397,860533,860542#msg-860542 https://youtu.be/C4KVxfeMUEw]]> piper3d CoreXY Machines Wed, 09 Oct 2019 15:40:39 -0400 https://reprap.org/forum/read.php?397,860533,860533#msg-860533 https://reprap.org/forum/read.php?397,860533,860533#msg-860533
Kinda new to the whole corexy genre. been playing with "simple" Cartesian printers so far.

I'm looking to build a new printer, I aim to use 3 different materials which are extruded via big and heavy print-heads.

The printed model will be heavy thus my thoughts on a core xy with Z axis bed (double Z).

Because the print-heads are to be heavy and bulky I wish to have each print-head on it's own gantry - and not all 3 on the same one.

So, question is what type of corexy am I looking at here? basically its a 3 gantry corexy, print-heads should work one after the other and not simultaneously.

Because I haven't really built a corexy so far it would be best if any suggestions pop-up regarding an existing design that I can upgrade as needed. or something in that manner...

Thoughts?

Cheers!]]> CJ.BRAVO CoreXY Machines Wed, 09 Oct 2019 13:55:42 -0400