Search found 7 matches

by justasking
Wed Oct 18, 2017 6:22 pm
Forum: Home Shop CNC
Topic: Spindle Motor Control
Replies: 5
Views: 2784

Re: Spindle Motor Control

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...
by justasking
Wed Oct 18, 2017 3:25 pm
Forum: Home Shop CNC
Topic: Spindle Motor Control
Replies: 5
Views: 2784

Re: Spindle Motor Control

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.
by justasking
Wed Oct 18, 2017 10:53 am
Forum: Home Shop CNC
Topic: Spindle Motor Control
Replies: 5
Views: 2784

Spindle Motor Control

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...
by justasking
Sun Sep 24, 2017 7:56 am
Forum: Live Steam
Topic: STARTER VALVES UPDATE
Replies: 10
Views: 1895

Re: STARTER VALVES UPDATE

Others have had the same issue. Could you please post the solution (if there is one), so we know how to correct the issue.
by justasking
Sat Sep 02, 2017 8:58 am
Forum: Live Steam
Topic: Pop safety valve
Replies: 25
Views: 3460

Re: Pop safety valve

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.
by justasking
Sat Jun 24, 2017 11:51 am
Forum: Home Shop CNC
Topic: Ball Screw Question
Replies: 19
Views: 7402

Re: Ball Screw Question

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.
by justasking
Sat Jun 24, 2017 10:43 am
Forum: Home Shop CNC
Topic: Ball Screw Question
Replies: 19
Views: 7402

Ball Screw Question

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...