View Full Version : Motor mount plans?

05-22-2005, 12:34 AM
Hi all,

Does anyone have/know where I can get plans or good pics of the mounting of a NEMA 23 stepper to a mini mill? Thanks in advance!

06-09-2005, 06:22 PM
i have this picture from my maschine.
you can see the mounting of the motor and kupplung.


12-15-2005, 12:19 AM
Not to hijack this thread but how about a drawing .I to am interested in plates thank you in advance.

12-15-2005, 01:20 AM
How about Ron Steele's plan (http://www.stirlingsteele.com/millplans.html) or wisp's plan (http://www.cncfusion.com/images/X2mounts/Z-axis/X2photos.html)

12-17-2005, 12:15 AM
How about Ron Steele's plan (http://www.stirlingsteele.com/millplans.html) or wisp's plan (http://www.cncfusion.com/images/X2mounts/Z-axis/X2photos.html)
Thank you, but someone out there has to have a drawing for plates without having to puchase a full set of plans.Any takers out there?I see all of this spectacular enginuity on here and either everyone is purchasing plans or there is a couple of cookies on here who are helping each other.Lets see if we can get one to help us newbies.Thank you to the smart cookie or plain dude with a blueprint who ever comes first.Thank you in advance. :banana:

Guy Smiley
12-17-2005, 12:57 AM
It's kind of difficult to recommend a mount when some specs are missing. Do you plan direct drive or belt drive? Bracket-to-machine mounting holes existance? Length and diameter of drive screw protrusion? Mill size, motor size, etc??? Any photos of your machine?

I'm positive that quite a number of members here are willing to help but it's hard to without some specs to go by.

12-17-2005, 03:44 PM
the other part thats almost impossible to know is the tolerance on any of the mounts. most of these machines are not made with good tolerances so even if someone had plans they probably wouldn't work on your machine.

Guy Smiley
12-17-2005, 04:28 PM
his may help you design one that's appropriate for your machine. Something like a starting point. http://www.5bears.com/cnc06.htm

12-19-2005, 01:16 AM
the other part thats almost impossible to know is the tolerance on any of the mounts. most of these machines are not made with good tolerances so even if someone had plans they probably wouldn't work on your machine.
How do you deal with the bad tolerances on thease particular machines I have the hf 44991 and wanted to go direct drive. I havent picked motors yet as it seems tolerance is going to be an issue. I want to mill intricate jewelery wax patterns.What would be a good move.Thank you .

12-21-2005, 09:51 PM
the mill is the hf 44991. I want to go with direct drive. There are no mounting holes that I know of.

12-22-2005, 06:11 PM

Look at this website. KDN sells complete kits and components for conversions.



01-23-2006, 01:14 AM
Thanks for all of the replys, guys! I've been away for awhile now - just got a brand spanking new youngin to take care of now - CNC is kind of on the back burner now. Anybody tried the CNC Fusion kits - it looks pretty good, and cheap too - even with the ballscrews! I've already got the motors/controller/PS - no software. I made an X axis mount, but couldn't figure out a good, compact, easy solution for the Y axis. I wasn't going to try to fab a Z axis - I was going to buy it anyway.

01-25-2006, 01:55 AM
I' tried the cnc fusion kits, I think they are great. Well, my opinion is biased though, hehehe. But if you have any questions about the kits, just let me know. Or if there are some detail photos etc... you would like to see. I am trying, very hard to make the kits as low in price as possible.


High Seas
01-25-2006, 02:10 AM
Might take a look at 5 Bears site - even shows how he did it:
:cheers: Jim

01-25-2006, 04:35 AM
Really looking for a way to mount the y stepper on a Sieg X2 - seems kinda hard to make a mount that would be rigid enough without replacing the thrust bearing housing too. Or is there a simple way to do the standoff mount?

I'll bet you are kinda biased wisp - I'll send you an e-mail about different options.

01-25-2006, 12:43 PM
This is not complete, but I think you can get the idea from this. It's working on my Mini Mill.

Motor mount. A work in progress...

Please note these motor mount(s) are intended to get you up and running with as little work as possible. If you’re happy with them, keep using them. If your not happy with them, then make you first CNC parts a fancy set of motor mounts. No warranty. Use at your on risk, do not profit from my simple design (without cutting me in on it), but feel free to make as many as you need.

This is a quick drawing of my "X" & “Y” axis mount. If your using CAD you can pull dimensions from the drawing. Feel free to ask questions. It's made from 2 1/2 x 2 1/2 "L" Alum.

You will need longer bolts to go through the bracket and original bearing block. If I remember correctly they are M6 x 15mm you will need M6 x 30mm. (two of them) for X. You’ll have to check Y yourself.

I used a ¼” shaft coupler (helical type). And drilled one end out to 10mm to fit the lead screw. After mounting every thing I measured the space between the coupler and the bearing block and made a plastic spacer the right thickness and drilled it to fit over the shaft.

I am working on the “Big What to do” with the “Z” axis… When I get it worked out I’ll post it.

Anybody need to see a photo of what it looks like on the mill?