Messages

1

General Mach Discussion / Re: How to resume cutting from a spot where axis motors stopped

« on: October 24, 2017, 05:51:11 PM »

no problem to reference start as I have my x0 and Y0 zeros on work offset .Was thinking of zeroing z an inch or so above where was original zeroed so the bit wont touch material but I can see where on screen and above material it is as scroll thru program.. So if I understood correctly, as I scroll down thru the program i'll see on the display where the x/y crosshairs are on the part along with the z arrow as it plunges in z passes . Let me go try it out .
Thanks

A

2

General Mach Discussion / How to resume cutting from a spot where axis motors stopped

« on: October 24, 2017, 05:26:25 PM »

my machine axis motors stopped moving , I could see the gcode line in Mach 3 still continuing scrolling down. I stopped the feed and then clicked on Stop button. Noted the gcode line# .My power supply felt very hot .Suspect its overheating caused the motors to stop moving. SHUT EVERYHTING DOWN TO LET COOL OFF.

Saved fixtures work offset before shut down all.

I know where on material the motors stopped .How do I start from that spot again in mach 3 after all is cool down again? Don't want to have to restart from very beginning again as program was about 4 minutes from finishing .
Been looking in the manual but cant seem to find a direction in there . Any help appreciated.

Thanks

Andy

3

General Mach Discussion / Mach 3 stopped in middle of cutting file

« on: December 21, 2013, 09:39:53 AM »

Good day. Am using mach 3 on a blackfoot cnc .Was cutting a  50 minute vcarve pro file and stepped out of shop for about 10 minutes. when returned mach 3 was stuck on 1 line of code about middle of cutting file .this is 1st time this has happened and I was not sure how to resolve this to complete cutting file.
What recommend if happen again in future?

Andy

4

General Mach Discussion / Re: x++limit switch triggered accidentally while referencing towards x--home

« on: January 02, 2013, 10:50:05 PM »

Yes. Thats the reason why I wired the limit switches normally closed and I'm so glad that I did.Just makes good sense.
Thanks again.
Andy

5

General Mach Discussion / Re: x++limit switch triggered accidentally while referencing towards x--home

« on: January 02, 2013, 05:53:39 PM »

found the problem.It was a severed wire connection on the limit switch that I accidentally hit .The wire parted behind the soldered connection and I couldn't see it due to the heatshrink covering.When I did the continuity test on the wires coming from the switch, no buzzing.But when I did the continuity test on the actual limit switch posts I did get a buzzing for continuity. When shaving the heatshrink back with a blade I could see that the wire had parted right where the solder ended.Did same continuity test on the limit switch posts for the remainder 3 switches and all were good. So happy to have figured it out!
HOOD , Thanks for your reply , it helped to narrow things down to the solution.
Andy

6

General Mach Discussion / Re: x++limit switch triggered accidentally while referencing towards x--home

« on: January 01, 2013, 04:58:46 PM »

Yes. am sharing 6 inputs on one pin#11. In my diagnostics screen. under port 1 pins current state . top row 7th column green light is stable on, nx to it top row 8th light flashes green same time as my limit switches flash yellow. after I have changed the active low setting in my config screen , ports and pins , input signals. I revert with my findings after I check my switches for continuity in NC position.other than that I still have not come up with any other soultion as to what the problem can be.
Andy

7

General Mach Discussion / x++limit switch triggered accidentally while referencing towards x--home

« on: December 31, 2012, 06:41:26 PM »

My table has 4 limit switches . 1 for x++, 1 for x-- which is also x home, 1 for y++, 1 for y-- which is also y home.They are wired in series , normally closed , port 1 pin 11.
I was referencing the x-axis, gantry going towards the x-- switch when I accidentally touched the x++ limit switch(was vacuuming the table) . could not get mach 3 up running with limit switches as I had to go into port and pins and deactivate the switches. Changing the active low/high setting didnt make a difference.
 The switches were working great before when referencing as the gantry would touch the switch and then automatically back off just enough so the switch would close again.
I suspect a bad limit switch and will check them by checking my wires for any breakages and the switches themselves for continuity. meantime I'm cutting without limit switches.
Anybody have similar experience?Help.

8

General Mach Discussion / Re: How to set table size and limit home switches

« on: November 17, 2012, 05:27:19 PM »

OK.But where do I put the 0.02 offset of the thicjness of the zeroing  plate?

9

General Mach Discussion / Re: How to set table size and limit home switches

« on: November 17, 2012, 01:49:11 PM »

Thanks .What I did was Jog X axis in ++ direction until it was hair off the++ limit switch  and set that travel as table max. Did same for Y axis.
I have probe setup to pin#12 in normally open circuit with alligator clip to endmill and a 0.02 thick plate for zeroing. It is working as I see the green light come on when the endmill touches the plate. I add the 0.02 to the DRO reading in machine coordinates to get Z Zero for the top of the material.
Is there a more efficient way to do this Zeroing tool to top of material along with zeroing X & Y axis to the material? Same like referencing the Axis to home switches with plate instead?
Looking for step by step.
Good News is machine does exactly what I tell it do.
Bad news is the machine does exactly what I tell it to do.
Maybe find solution for material surface zeroing in another post.
Thanks

10

General Mach Discussion / Re: How to set table size and limit home switches

« on: November 13, 2012, 04:29:46 PM »

My swithces are working good at these settings.
referencing  x and y axis the gantry goes slowly to the switch , triggers it then backs off just enough so it closes again.
I dont have a switch for the Z axis.
Where do I set my table size and soft limits?