Messages

121

General Mach Discussion / Re: Stepper motors that shudder.

« on: April 01, 2019, 06:20:23 AM »

Suggest you go to the Gecko site and read the information on stepper motors. In particular Step Motor Basics.

RICH
 

122

General Mach Discussion / Re: Goofy forum layout

« on: March 30, 2019, 07:41:37 AM »

Brett,
Thanks for the info on the theme setting, all is good again.

FWIW
Change is a good thing ,BUT , most of the time just find it to be a real PITA!


RICH

 

123

General Mach Discussion / Re: I burnt out my lathe motor today. So have a few questions.

« on: March 01, 2019, 06:23:40 PM »

For lathe threading use the single pulse for rpm readout and use by Mach 3, but, manually set the rpm of the motor manually and not via PWM for threading. The reason is that when threading, the PWM and Mach3 internal adjustments to thread pathing will be fighting each other.

RICH

124

General Mach Discussion / Re: Mach3 threading problems

« on: March 01, 2019, 06:09:18 PM »

Yes you need a license in order to do threading. Note also to "NOT" use the Turn Diagnostics plug in. Also manually set the VFD rpm. Have A read of Threading On The Lathe - Mach 3 Turn.

RICH

125

General Mach Discussion / Re: Mach3 threading problems

« on: March 01, 2019, 06:08:49 PM »

Yes you need a license in order to do threading. Note also to "NOT" use the Turn Diagnostics plug in. Also manually set the VFD rpm. Have A read of Threading On The Lathe - Mach 3 Turn.

RICH

126

General Mach Discussion / Re: writing subroutines

« on: February 22, 2019, 05:48:20 AM »

See this topic for canned cycle for turning down to a diameter:
https://www.machsupport.com/forum/index.php?topic=4297.msg30870#msg30870

There is a wizard to do the same.

RICH

127

General Mach Discussion / Re: moving hove from lower left to right.

« on: February 21, 2019, 08:09:29 AM »

You can define Home position anywhere you want it to be.
The attached shows typical axis movements for a mill. See the link below and read pages
2,4,5 in the workbook.
https://www.machsupport.com/forum/index.php?topic=24580.0

Also read the the Mach Manual.

RICH

128

General Mach Discussion / Re: homing sequence (G28)

« on: February 10, 2019, 05:57:58 PM »

Start with simple G28 moves and note what you thought it would do and what actually happens.
Note also the modes your in and if there are work offsets etc.

Now go play some........ lets us know what your score is as to what you thought would happen compared to what actualy happened. 

RICH

129

Show"N"Tell ( What you have made with your CNC machine.) / ATTACHMENT FOR PRECISOIN BULLET SEATING

« on: February 10, 2019, 08:43:24 AM »

A die attachment for easy / accurate bullet seating adjustments. Also has info on gauges worth making.

See attached file.

RICH

130

General Mach Discussion / Re: feed per rev versus feed per minute

« on: February 09, 2019, 08:58:58 AM »

Make sure you are in the right mode ie; G94 or G95.

How close is your Kernal speed as compared to selected kernal speed in configuration?
- When you run the driver test in Mach3 it will show actual your actual Kernal Speed.
   Some users have a kernal speed indication via a pulse frequency DRO on the diagnostics screen.
   The closer the actual kernal speed to selected kernal the better.
- RPM is real time but there is a lag in what the DRO shows.
  The rpm should not fluctuate, maybe 1 or  2  rpm, but, if the rpm varies the feedrate will vary.
  You should check your actual rpm......Mach3 rpm indication is more accurate than a lot of rpm indicators!

The above is for Mach 3, but I don't use Win 10 / 64 bit,  and don't know what version you are using, so
can't speak for that system.

BTW, There is a big difference in a visual movement of the axis for an feedrate between .2 and 1.5.
           Try G1 Z...... F ( value .01 to 1.5 ) to realy get a visual flavor of actual movement.
           You would plainly see it. Mach tries to maintain feedrate via rpm sampling.

RICH