Messages

181

General Mach Discussion / mpv has invalid port and pin settings for the A input. port=3, pin-1 in mach3

« on: March 02, 2014, 08:36:48 PM »

Have you run this machine before? Or is this the first time ? Experience with Mach?

182

General Mach Discussion / mpv has invalid port and pin settings for the A input. port=3, pin-1 in mach3

« on: March 02, 2014, 05:33:36 PM »

But did you check step/ dir motor?

183

General Mach Discussion / Re: mpv has invalid port and pin settings for the A input. port=3, pin-1 in mach3

« on: March 02, 2014, 03:10:29 PM »

In spindle set up, uncheck PWM, and check step/dir motor, apply, ok. That is how mine is set up. Mine is a Sherline with Homanns speed controller. It will either work or it wont. If it doesnt, change it back and wait for Jeff.

184

General Mach Discussion / Re: Need Help with steps per unit

« on: March 02, 2014, 03:04:33 PM »

Why don't you use the calibration option on the settings page of Mach (alt 6). its just above the RESET button. Mach will do all the calculation for you, just follow the instructions. Use a digital vernier clamping the fix jaw to the table and use a bar in the collet to move the sliding jaw, just make sure you move the correct way as you don't want to wreck your vernier. I did this and got perfect dimensioning.  Do a trial away from the table as you need to check what Mach has defaulted to Metric/imperial before you touch the vernier.

Though this will work, if you dont understand how the units are calculated you will can get into trouble regardless of the units of measure. Use the calibration tool after you have got the basic set up close.

185

General Mach Discussion / Re: Need Help with steps per unit

« on: March 02, 2014, 11:25:50 AM »

I am not sure what your driver setting means. Are you meaning 1/16th micro stepping (200 x 16 =3200). If that is the case your step per unit value is 200 x 16 x 10 (tpi)=32000 steps per unit.

186

Brains Development / Re: Changing milling bits

« on: March 02, 2014, 09:42:15 AM »

   Btw, I ran this one for a while but it would always slip at a critical time (arent they always?) and break the bit or ruin the part, most likely both. It was a simple design and seems like it should have worked. It was a well made piece. I tried all of the different springs etc. I was trying to machine metals not plastics or woods etc.

https://www.youtube.com/watch?v=RzR6L3lEXdM

187

General Mach Discussion / Re: Strange Toolpath

« on: March 02, 2014, 09:16:53 AM »

kolias, Dont feel bad, crop circles seem to pop up around here about once a month ;-)

188

Brains Development / Re: Changing milling bits

« on: March 01, 2014, 01:24:05 PM »

How fast do you need your spindle to turn?

What materials are you cutting?

Tool changers on little machines are either home built or really expensive usually.

Just a high speed spindle? Here are pages of them on EBay.
http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313.TR11.TRC1.A0.H0.Xer16+spindles&_nkw=er16+spindles&_sacat=0&_from=R40

Here is a fantastic build by Joe Vicars.
https://www.youtube.com/watch?v=i1ZcKoUSlqI

Usovo's version which I think is also carried by IMService.
https://www.youtube.com/watch?v=Vt9kXYJVTHk

189

General Mach Discussion / Re: Proper directions of X, Y, an Z axis

« on: March 01, 2014, 11:09:26 AM »

I think I have dyslexia, it is "swap axis" maybe?

190

General Mach Discussion / Re: Proper directions of X, Y, an Z axis

« on: March 01, 2014, 10:47:42 AM »

I believe it is a feature called "axis swap". Never used it or really read up on it. I think Hoss used it a bit when using his mill as a lathe. I would likely just have 2 profiles for the different processes.