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Ive used these.
Zapp Automation
I think they are made by SYK, so it is likely you can get them in the states.
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With all of the piece parts available to build one's own CNC, I am running into a bit of a wall on the issue of nut brackets (or nut housings) to connect a ball nut to the frame. Is this something most people just have custom made or make themselves if you have appropriate tooling? I know Rexroth has a decent line-up of these, and THK has a few that fit some of its smaller screws, but that seems to be about it and "the 'bay" is letting me down.
How did you handle this?
(Note: there are multiple local machine shops I can use to custom fabricate a part to very tight tolerances, but I'm looking to avoid that if I can save the money...)
Ive used these.
Zapp Automation
I think they are made by SYK, so it is likely you can get them in the states.
Thanks! The MGD units are from Bosch Rexroth, about the only manufacturer to make a reasonably full line-up, and unfortunately, not the right size/dimensions.Originally Posted by hignog
Take a look at these. I have absolutely no experience with them, but thought maybe someone would chime in as to how good they are.
Ballscrews
I got my first "reasonable" bid on my ball nut housing -- $200. The pre-made ones that are under $100, and are steel, sure look like better deals if you can use a screw that uses them.
I'm starting to purchase and collect the hardware required to build a router.
Must say I'm amazed that out of all the FleaBay sellers, not one that I can see sells ball nut housings to match their ball nuts.
This is driving me crazy. Am I missing something? Surely there needs to be one ball nut housing made for every ball nut produced?
Is everyone buying their nut housings from Zapp Automation?
Zapp and Marchant Dice both are reselling the Bosch Rexroth nut bracket (the key is "MGD"). I ended up paying to have one made locally, and it, of course, turned out wrong. At this point, I have an order in to Misumi for a machined metal plate that should work (20mm of 1045 carbon steel ought to do it). It was under $100, which is competitive with the factory-made versions out there.
http://us.misumi-ec.com/us/ItemDetail/10300540610.html
I am rapidly becoming a fan of Misumi.
Note: they have a promotion running where you get 30% off of your first order up to $150 ($500 order). Given their prices and quality on extrusion, I would not waste my first order promotion on just a nut bracket.
You might also consider KURODA, we use them quite often.
Dick Z
add: http://www.kuroda-precision.com/prod...dardGround.htm
Last edited by RICHARD ZASTROW; 06-15-2011 at 04:40 PM. Reason: add:
DZASTR
Kuroda makes good screws from what I hear, but I'm not seeing nut brackets on their product pages. Am I missing something?
Yes, you aren't looking deep enough into their catalog. If you look at the page(s) above, the end supports are shown in the pictures.
Dick Z
add: try this: www.kuroda-precision.com/products products ball screws support units
This Kuroda website is weird.
Last edited by RICHARD ZASTROW; 06-17-2011 at 01:21 PM. Reason: add:
DZASTR
It may be in there, somewhere, but since I have an NSK screw and a decent alternative, I'll let others do the dumpster diving.
A sampling:
http://www.kuroda-precision.co.jp/e-...041b/01add.pdf
http://www.kuroda-precision.co.jp/e-...08b5/02a86.pdf
http://www.kuroda-precision.co.jp/e-...040e/01abf.pdf
http://www.kuroda-precision.co.jp/e-...0423/01af7.pdf
http://www.kuroda-precision.co.jp/e-...042c/01b09.pdf
http://www.kuroda-precision.co.jp/e-...042c/01b09.pdf
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