Re: Hoss's G0704 - I need help with a new WEIRD problem, HOSS you still around Help
I have been running my Hoss G0704 cnc conversion with very few problems for the past 4 years.
This week I decided to change my ATC4 from a 6 tool rack to a 10 tool rack. So I made all the pieces, built up the new 12 inch ATC4. I went into the vb script and changed everything to show the new positions of tools, new tool count and new degrees separating the tools.
Here is the NEW problem, I set the steps for the tool rack about 15 or 16 times now. It does 360 degrees on repeated checks. When I run a dry tool change the tool rack either under or over rotates. No changes to the VB script or to the motor tuning or steps per degree but it will not repeat the rotation for tool changes, every one is different no matter what tool I select. If I go from tool 1 to tool 10, the first time it will under rotate, the next time it might over rotate or under rotate, it is not consistent in the error of over or under rotating.
Any one seen this problem before?
Please all suggestions will be gladly accepted.
David
Re: Hoss's G0704 - I need help with a new WEIRD problem, HOSS you still around Help
I had a similar issue on my DM3000 lathe. It has a 6 tool changer. For ages it was spot on. It started doing just as you described and I could never find the cause. However I was running Mach3 via the PP. Back in the XP days. It has been on a back burner for a while.
Quote:
Originally Posted by
skyguynca
I have been running my Hoss G0704 cnc conversion with very few problems for the past 4 years.
This week I decided to change my ATC4 from a 6 tool rack to a 10 tool rack. So I made all the pieces, built up the new 12 inch ATC4. I went into the vb script and changed everything to show the new positions of tools, new tool count and new degrees separating the tools.
Here is the NEW problem, I set the steps for the tool rack about 15 or 16 times now. It does 360 degrees on repeated checks. When I run a dry tool change the tool rack either under or over rotates. No changes to the VB script or to the motor tuning or steps per degree but it will not repeat the rotation for tool changes, every one is different no matter what tool I select. If I go from tool 1 to tool 10, the first time it will under rotate, the next time it might over rotate or under rotate, it is not consistent in the error of over or under rotating.
Any one seen this problem before?
Please all suggestions will be gladly accepted.
David
Re: Hoss's G0704 - I need help with a new WEIRD problem, HOSS you still around Help
Really, either backlash, something is slipping, or the stepper is loosing or gaining steps due to the extra mass.
Try slowing it way down and back the accel off and see if it improves. When I went to 12 tools, I had to slow it down some, but it is still really fast.