The Home Machinist!

The motor is a little permanent magnet ac/dc motor with brushes. I call it a sewing machine motor because it is so small. It does great job for me doing little things. Attached is a picture. I will hopefuly be able to graduate to larger mill some day. Reading the manual I think this speed control wi...

Thank you so much for the information. I will read through the manual to be sure it is with in my capability to install. Looks fairly simple though.

What are some suggestions and opinions for spindle motor Speed Control. I have a small 3 axis bench mill that uses just a plain Jane ac/dc motor (1/10 hp I think) . I don't think I want to go with a high speed water cool motor with VFD for this little guy. The original rheostat had capacitors, diode...

Others have had the same issue. Could you please post the solution (if there is one), so we know how to correct the issue.

Looks like the waxes were shot using rubber molds. Rubber molds are great for some things, but if you want to maintain quality, accuracy and consistency one needs to use Aluminium or equivalent hard molds to shoot waxes. The manufacturer is trying to save time and money but the quality will suffer.

I thought about loosing steps, but in some instances the distance grows and I would not expect that with loosing steps. Not much, but .002-.004 makes me scratch my head.

All, I am fairly new to the CNC world and I have a small CNC lathe. The machine uses Mach4 with stepper motors and 16mm ball screw on the Z axis and 12 mm on the x axis. When I try to calibrate the axis's I get inconsistent measurements on the travelled distance. I usually move in .1000 increments w...