Topics

11

General Mach Discussion / servo motor not getting up to speed

« on: November 24, 2008, 11:32:44 PM »

I do not know if the subject makes sense but here is the issue.
Machine was running great.Using Larken viper 200 drives.I ran a few parts this morning
then set up for another job.Y axis works fine Z axis fine.X axis will not get up to speed
and if I try to jog with the buttons will go ahead then back then ahead then back meanwhile the
distance on the dro is adding up so that the table has jogged itself back and forward but moved very little.
I checked my settings .Checked power to the drives.The encoder is mounted on the screw and not on the motor.
What are the symtoms of a failing encoder?I checked the wiring on the encoder and it is good.Checked the wiring on the motor
Could the motor be failing ie bad brushes?Checked the coupling on the encoder.I need some ideas for morning.

12

General Mach Discussion / threading not as shown on wizard

« on: March 09, 2008, 03:41:20 PM »

I finally have my spindle working nicely.I added a second port and pci card.
Worked for hours with tying to get it going through pins 13 or 15 on my
campbell bob.Put in a cnc4pc c11 bob and the pci card,set up time 10 min.,
turned on lathe and with a few adjustments had the spindle speed perfect.
Tested with handheld tach and the numbers match.Now trying to get the tpi to match
what is programed on the threading wizard.I get about 1/2 the value ie.,
.05 pitch gives a thread with about a .025 pitch on the work.What now.

13

General Mach Discussion / online tutorials

« on: September 02, 2007, 07:42:35 PM »

how can I download the tutorials on one computer and save them to disk/memory stick and replay them out in the shop?
It used to work fine up to a few weeks ago and I saved some while building machine now
that the "sparks" are about to fly it would help to have as much info as possible.