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??? When ya say servo , are ya talking like one of those Consew sewing machine servo motors ? I had forgotten all about those units . ??? thanks ??? animal

Here’s what a friend did. I made it out of a motor drive setup that I salvaged from a retired mobility cart I had on the pile. I used the analog speed controller salvaged from it as well. No

Here’s a photo of the bearing holder I turned on the lathe to replace the bushing at the bevel gear end. And at the crank end. Finally I started with plastic pulleys. Sent: November 3, 2024

I’ll take it one step further if you decide you want to look at a more complex solution. First a drawing of the existing knee acme screw which has a bevel gear at the top turned by the horizontal

I put a stepper motor and control on a Sheldon Horizontal Mill I restored last year. I use it on the crossfeed and can control the feed rate for milling.? If you are just wanting to raise and lower

Here’s a photo of the original parts. Thrust bearing at the bevel gear end set the end play. The shaft sat in the cast iron and there was dramatic end play but then it was designed to be turned

Hit send too fast . The knee is the one that I will probably convert first . I had my chest cracked 7 years back & thinks like raising/lowering the knee reminds me that that work\was done to me .

??? Sorry Forgot to mention , ye it's a knee mill I was told it was purchased new in the 80's . It Came from KBC tool's . I got it from the original owner whose work was 95 % plastic , no steel &

Does your mill have a knee or does the head assembly move? That's easier than moving the quill and leaves the quill as a manual option. There are all sorts of ways of doing this. For the longest

? Finally got my mill in my machine room & under power . Wondering if anyone here has come up with a DIY powerfeed that could be used on a mill . thanks animal

Hi Ralph, I haven’t written any quadrature code yet other than an encoder as an MPG and it was 16 lines per rev. My ELS used a 1PPR sensor and calculated the RPM from the time between pulses.

John, have you shared the code to read the encoder? Ralph [email protected]> wrote:

Did some research. Seems it’s 600 PPR and the encoder suggested doesn’t produce the Z index pulse which makes sense for just using encoder pulses to generate stepper motor pulses. I found

The Arduino based electronic gearing require a multi-line encoder on the spindle in order to apply an A/B fraction to create stepping pulses that track the encoder. IIRC it has to be an 800 line

HI Dom. The DI photos were sent to open up conversations from you and forum members of how to level the mill bed to the X and Y axis and maintain a parallel level face of the end mill / router bit to

This dial discussion has nothing to do with what I was asking. Have I missed something? Dom

The flange will be screwed to the moving gantry using M3 or similar bolts. Dom

Hi Dom Thanks for the info ref Stepper motor pulse. I live and learn. I have just finished work on a replacement shoe for a plastic sheet welding machine. Basically it?s an very large clothes iron

Yes CNC. Have gone for smaller angle and smaller thread for precision. Control will either be grbl or marlin based. CAD probably all sorts tinkercad, Autodesk, copper mill (PCB milling) and couple

Hi Dom I understand it is a CNC router and not a 3D printer and or a mill. What CAD/CAM will you be using? Hashtag #CNC already available. Take a look at some of the existing files and photos when