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Messages - Myrickman

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Mach4 General Discussion / Re: mach4 license
« on: September 24, 2020, 03:53:52 PM »
My motherboard on my Windows 7 confuser died and I’m having it switched out. They were able to save all all the old files. Is there something I need to do a la reentering the new machine ID to keep it active running Mach4 Hobby?

Mach4 General Discussion / Re: Mouse MPG question
« on: January 01, 2020, 05:34:13 PM »
Thank you sir! I’ll check it out.

Mach4 General Discussion / Mouse MPG question
« on: January 01, 2020, 08:53:09 AM »
Can the resolution of the mouse MPG be changed permanently? The default is 0.01, would like to change it to 0.002. I use a wireless mouse to set the Z axis on the work (with a piece of shim stock) and am always changing it to the finer resolution on the screen. Eventually I’ll get or make a probe setup, but this works for now for this newbie.

Mach4 General Discussion / Re: Zeroing and extents
« on: December 30, 2019, 09:27:02 AM »
Thanks Craig. Makes sense now. I’ll give your example a try.

Mach4 General Discussion / Re: Zeroing and extents
« on: December 24, 2019, 04:59:12 PM »
My mistaking the vernacular....when I say extents, I’m really meaning the work envelope the CNC will travel within to execute the code. I do have both soft limits and mechanical limit switches on all three axes. When I fire up Mach, I’m referring to displaying the work envelope. In the hobby version, there are two tabs to click on showing the actual position and the “program” extents which I now gather as being the work envelope the code will move within. The numbers displayed in the (program extents) work envelope, are the ones which seem to carry an offset from one executed gcode to the next in spite of zeroing the displays for each axis before starting. It would seem I need to determine the x,y,z position of the work table from true home, set this up as a G54 offset and then use this before starting ? Thanks for your advice gents, a year ago, I knew zip about CNC....bear with me as I ascend the learning cliff. Looks like I have more reading to do..

Mach4 General Discussion / Re: Zeroing and extents
« on: December 24, 2019, 09:58:27 AM »
I do have home switches, but my working area is offset to this. BTW I’m using a piece of Newport 1/2” aluminum breadboard with 1/4-20 tapped holes every inch; great for positioning setups. What puzzles me is with this offset, the extents reflecting the correct distances from what I’m setting as 0,0,0 (on the stock corner) is correct like 50% of the time. Again, if I zero the displays relative to the stock and load the code (with the movement disabled), sometimes it is correct. If not, close Mach and reload code...now it’s correct. 

Mach4 General Discussion / Zeroing and extents
« on: December 24, 2019, 07:59:23 AM »
Relative newbie here running Mach4 hobby to UC100 to Gecko G540. With Mach in the disabled condition,  machine at xyz=0 and displays zeroed, when I load gcode, often times the extents are off or based on the last program I ran. To correct this I have to close Mach an on restarting and reloading desired gcode, the extents are now correct. Is there something I’m doing wrong here to not be able to zero the machine and get the extents correct with gcode loaded? It’s almost like the last values are cached....

Mach4 General Discussion / Re: cutting MDF on the CNC
« on: December 04, 2019, 12:01:23 PM »
For practice and g-code prove-out, I use the blue 1" styrofoam in my machine. You can easily cut, glue + stack it to make any size of stock. Make sure you have a good vacuum though; and no wear on the bits.

« on: February 12, 2019, 09:27:29 AM »
I've had good luck with Inkscape importing bitmaps then converting to path and saving as a .dxf. From there CamBam generates the gcode.

Mach4 General Discussion / Re: Anyone use mach4 recently; version 2?
« on: January 30, 2019, 01:02:09 PM »
I had no experience with Mach3 or any CNC software...but as a complete newbie to CNC, I was able to get Mach4 hobby up and running/moving my gantry  in about 2-3 hours. Hardest part was setting the limits and figuring out my computer needed a better graphics card to see the tool path. Fast forward a year and I'm engraving and running simple CamBam shapes so knowing no better, I'm quite happy...

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