Getting ready to put it together. .

[justCNCit]

Heres the plan:

1/2 - 10 ACME PRESICION Threaded rod from Reid Tools.
- https://reidecom.reidtool.com/xephr/...ID_PDF_DISPLAY
-4140 hardened tool steel.
-Model AR-23, 6' long rod.
-$45.84

+2 of same thing, 3 foot lengths for X and Z axis.

1/2 - 10 ACME Threaded nut, from DumpsterCNC.com
- http://www.dumpstercnc.com/leadnuts_acme.html
- $15.00 each

+2 of same thing, X and Z axis.

1/2 - 10 ACME Threaded shaft/motor coupler.
- http://www.dumpstercnc.com/acme_couplers.html
- $15.75 each

+2 of same thing, three motors total.

AND, the key components: (these will lock around the thrust/radial bearing setup as linked right after this).

1/2 - 10 ACME Thread Clamps
- http://www.dumpstercnc.com/thread_clamps.html
- $7.50 each

Anti backlash system:

http://www.cnczone.com/forums/showth...t=34704&page=2

to be supplied by Ahren: Bearing block, motor mounts, and part # for thrust & radial bearings.

What do you think?

edit: this is meant to be a fairly cheap gantry setup, my first machine ever. I just think it reasonable to gain fair accuracy out of the setup, within a couple thou or less backlash.

297oz steppers off of xylotex, prolly.

[justCNCit]

Ok, maybe I'll just start buying this stuff to see if it works how I expect.

[justCNCit]

is this what I want

http://www.use-enco.com/CGI/INPDFF?P...MITEM=990-4042

lovejoy coupler combo, top of page.

edit: my mistake probably just use straight couplers instead.

[justCNCit]

The most time consuming part of this job is in dealing with shipping. The logistics are crazy. Rhino came in with $60 in brokerage. Xylotex controllers came in with $50 in brokerage.

Gonna try source it through the local shops/co's. If they can't then I'll take the risk of shipping via standard postal service. Jeez! 3 weeks of this.

[ahren]

I think you've got the right idea! I'll be updating my website tomorrow with a recommended parts list -- I added an exploded view drawing and some general descriptions for the 8020 axes. Hopefully that will help with your design. And I'm happy to ship to Canada via USPS. I just added international shipping options to my page, so feel free to order.

Ahren
www.cncrouterparts.com