Messages

1

General Mach Discussion / Re: Mach3 Release questions and the usual CV question

« on: December 10, 2010, 01:34:16 PM »

I am glad to hear that it is running trouble free. gives me some confidence.

The First machine that ShopCam  delivered to us was not square. I tried to fix it but I remember there was no adjustment. The machine I have now has been modified since then. the change is this: The 3 elongated holes that are on each end of the steel plates that hold the gantry(carriage), have been bored out. I noticed on our first machine that the elongated holes should have been 90 degrees from the way they are so that if it was out of square you could loosen the 12 bolts that hold the gantry and pivot it until square, then tighten them back up.  I am still not sure how precise the machine is but it seems to be good enough for woodworking.

2

General Mach Discussion / Re: Mach3 Release questions and the usual CV question

« on: December 06, 2010, 10:10:33 AM »

Thanks, I played with the feedrates and acceleration for all 3 axis to fine tune as much as possible. I ended up with:

X
feedrate = 400 in/min
acceleration = 60 in/min/sec

Y
feedrate = 400in/min
acceleration = 60in/min/sec (I could go faster on Y, but I thought it should be equal to the best i could get out of X?)

Z
feedrate = 40in/min
acceleration = 10in/min/sec

I'm just going to go with Exact Stop and forget CV mode then. I'm cutting $1000 a sheet aircraft honeycomb panels that have to be exact, rounded corners of any sort are unacceptable.

I believe my version of Mach3 is a lockdown version.

Hi, I have the same router only 52-100 shopcam. I got the frame and built my own controller. I am sure I know what company you work for and I am in the same city. I was wondering if you still have the shopcam? and if you do, what kind of motor setting you have in the motor tuning? I am trying to mill multiple circles and the circles generally start ok then gradually get worse then the machine totally loses position in the X axis by about an inch.  I am not sure if I am running the machine too fast to mill circles (100in/min)  and this is causing missed steps. can anyone help?