Messages

1

General Mach Discussion / Re: Since PC reset itself, positioning is not correct

« on: October 01, 2015, 09:51:52 AM »

Since I zero the Z axis regularly, I likely hit the y or x by mistake and that would explain what happened.  Its amazing that I have not done that before in many years of use.  I set it up initially and have never touched it since.  I use the G54 offset to define my 0,0 to be in the front left hand corner.  It was easy enough to redo it by just moving to the soft limits in that corner and then re-zeroing the X and Y axis's.

Since I never normally rezero the x and y axis's, I normally don't even regen the paths and everything still works fine.

2

General Mach Discussion / Re: Since PC reset itself, positioning is not correct

« on: September 30, 2015, 09:03:26 PM »

Was able to adjust the offsets for G54 and get it back working.  Not exactly sure how they got corrupted.

3

General Mach Discussion / Since PC reset itself, positioning is not correct

« on: September 29, 2015, 10:51:05 PM »

Even when loading known good G files, I get soft limits errors and the cuts don't start at the correct spot in relation to home.
REF ALL HOME works fine, but it doesn't correctly use home to position the parts I am cutting.

Not exactly sure where to start with troubleshooting. Any ideas would be appreciated.

Rick

4

FAQs / Re: My z plane isn't perfectly level

« on: September 10, 2009, 03:04:22 PM »

All cooling is done by a vacuum.  Actually, when I had the heat problem I think it was prior to having a vacuum in place.

To solve my problem, I shimmed the table top underneath and now it is accurate to about .005 so it works great.  Thanks for the inputs.

Rick

5

FAQs / Re: My z plane isn't perfectly level

« on: July 21, 2009, 02:57:22 PM »

Thanks for the input.  I had considered that.  In my case, I'm milling Lexan and to produce a clean edge underneath, I have a 1/4" air gap under the Lexan I am machining.  I had some melting problems when I had a sacrificial Lexan sheet underneath initially.  I have a fixture that is held on all the edges that has a 14" X 14" cutout for the area that I do my cutting in.  I guess I could do a different hold down scheme utilizing a sacrificial board underneath that has been milled.

I guess Mach 3 doesn't have an easy way to do this.

6

FAQs / Re: My z plane isn't perfectly level

« on: July 21, 2009, 09:40:00 AM »

Thanks.  It's a K2CNC machine.
http://www.k2cnc.com/shop/proddetail.asp?prod=KT%2D1414%2D09&cat=26

I would have to remove the table top and put shims under it of various thicknesses at about 12 screw locations.  While this is doable and not a big deal, it would be easier to pull up a screen that let me put in an offset for each of four corners.  Actually, you would only need three assuming the fourth point would be at zero referenced to the other three.

Rick

7

FAQs / My z plane isn't perfectly level

« on: July 21, 2009, 08:19:35 AM »

If have a 14" x 14" cutting area and the Z plane not perfectly level .  Its off by .04" worst case measured in the corners.  This matters when cutting slots in Lexan that go most of the way through the Lexan.  This extra 4/100" error sometimes allows too little material left under my slots.  I'm considering shimming under my table mounts, but I wondered if Mach 3 allows me to program in this offset.  I can't be the first person to have this problem.

Thanks
Rick