Onodrim -- enlarged build volume TAZ-like machine

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rufu5
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Onodrim -- enlarged build volume TAZ-like machine

Post by rufu5 » Mon Jun 08, 2015 4:54 pm

I wanted to share this clone that I'm helping to build, under the expert supervision of Chris Geanious.

In light of https://www.lulzbot.com/cloning-lulzbot-products I'd like to make a few notes before I get started:

1. This printer is a clone, it is not a product from the Lulzbot factory
2. Lulzbot is a trademark of Aleph Objects, Inc.
3. Source files for the Onodrim are available here https://github.com/supergeanious/onodrim

Chris makes topological terrain maps in 3d, and has been chopping them up into taz-sized pieces to print them. The idea behind the Onodrim is to increase the x and y axes of the stock TAZ build volume by 300mm each way to allow for bigger topographical prints, among other things.

The additional challenges here will be modifying the design of the y-chassis to accommodate the larger bed, designing a new bed plate and heating solution, and coming up with a system that will allow adjustment of the level of the bed while minimizing any warpage of the bed.
Attachments
20150608_124050.jpg
20150608_124058.jpg
20150608_124113.jpg
20150608_124121.jpg
20150608_162801.jpg

rufu5
Aleph Objects | LulzBot
Posts: 249
Joined: Wed Apr 10, 2013 12:25 am

Re: Onodrim -- enlarged build volume TAZ-like machine

Post by rufu5 » Fri Jun 12, 2015 4:53 pm

I drew up a bedplate .dxf for the onodrim. I used a program I've never used before, librecad, to make it, and I haven't verified that the file is readable by whatever software waterjet operators use, but I did have a friend open it up in SolidWorks and it seemed to be fine.

The bushings are spaced for rods that are 300mm apart and the bed should be able to use all the stock printed parts that attach to the bed (belt mount, bed corners and bushing holders).

Yeah, Librecad. It's in Debian ftw!
Attachments
Onodrim_bedplate_take2.dxf
bed plate dxf for 600mm x 600mm bed
(12.83 KiB) Downloaded 94 times

rufu5
Aleph Objects | LulzBot
Posts: 249
Joined: Wed Apr 10, 2013 12:25 am

Re: Onodrim -- enlarged build volume TAZ-like machine

Post by rufu5 » Fri Jun 12, 2015 5:19 pm

Onodrim + rods = ????
Attachments
20150612_120456.jpg
Got the rods on there

nbmoretto
Posts: 243
Joined: Sat Nov 01, 2014 10:44 am

Re: Onodrim -- enlarged build volume TAZ-like machine

Post by nbmoretto » Mon Jun 15, 2015 4:38 pm

Looks like a very interesting project, can't wait to see the final product!

ray
Posts: 82
Joined: Wed Jul 23, 2014 9:50 am

Re: Onodrim -- enlarged build volume TAZ-like machine

Post by ray » Tue Jun 16, 2015 9:14 am

Hey Rufu5, what size rods did you use for the Y? Beef them up a bit from the original? I know that's gonna be a heavy bed.

Also, what's the plan for heating the bed atm?

Keep up the good work!!

rufu5
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Posts: 249
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Re: Onodrim -- enlarged build volume TAZ-like machine

Post by rufu5 » Fri Jul 10, 2015 11:59 am

3dprintdaddy wrote:Hey Rufu5, what size rods did you use for the Y? Beef them up a bit from the original? I know that's gonna be a heavy bed.

Also, what's the plan for heating the bed atm?

Keep up the good work!!
Yep, just got the bedplate and the glass in today and it's really heavy. We went to 1/4 inch for the aluminum and borosilicate. We used 10mm rods for the y bed, but they sag like crazy under the weight and are going to have bearings mounted to the frame, so the rods are only there to guide, not to support. DSouth is designing those parts now, so we will get them up as soon as they are finished.

Originally the plan was to run 4 300mm TAZ beds in a series of two beds in parallel (just arrange them so the effective resistance is as close to the same as 1 bed as possible) and just run PLA temps. The current plan is to have one 300mm heatbed in the middle of the glass for ABS, and to only use PLA to print on the full build volume. That may change as we get further into this build.

rufu5
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Re: Onodrim -- enlarged build volume TAZ-like machine

Post by rufu5 » Fri Jul 10, 2015 12:01 pm

Just the glass
Attachments
20150710_102801.jpg
20150710_103005.jpg

rufu5
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Re: Onodrim -- enlarged build volume TAZ-like machine

Post by rufu5 » Fri Jul 10, 2015 12:03 pm

This is a very heavy y-axis!
Attachments
20150710_112254.jpg
Bed with glass
20150710_111759.jpg
SD card for scale

david.south
Posts: 3
Joined: Fri Jul 10, 2015 2:53 pm

Re: Onodrim -- enlarged build volume TAZ-like machine

Post by david.south » Fri Jul 10, 2015 3:05 pm

Hello internet!

This is David South, staff at Idea2Product Lab at Colorado State University. Here is the STL of the part I designed in order to use a 608ZZ bearing (22mm diameter) to support the heavy bed weight of the Onodrim. It requires two M5 bolts,two T-slot nuts, one M8 bolt, one M8 X 30 button head capscrew, one M8 nut and two M8 washers.
Attachments
photo 2.JPG
photo 1.JPG
Onodrim_bedplate_support_bearing_holder.stl
(42.66 KiB) Downloaded 105 times

rufu5
Aleph Objects | LulzBot
Posts: 249
Joined: Wed Apr 10, 2013 12:25 am

Re: Onodrim -- enlarged build volume TAZ-like machine

Post by rufu5 » Wed Jul 15, 2015 5:22 pm

Currently converting, but available soon, a video!

https://vimeo.com/133610686

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