523,644 active members*
2,861 visitors online*
Register for free
Login
Results 1 to 4 of 4
  1. #1
    Registered
    Join Date
    Feb 2004
    Posts
    74

    Torchmate blue screen AVHC

    I have been cutting parts out of 3/8" stl plates 5' x 10'
    The cuts are long roughly 46" turn then come back 46" (guardrail posts)
    I was using a HyperT 1650 machine with 60 amp tip set at 141 volts.
    I noticed when the torch was traveling down the long straight cuts my cut voltage
    would vary from 138 up to 143 then back down to 138 back up to 143, this cycle
    was very consistent and took about a second and a half to two seconds.
    I have a 10HP compressor with RTI filter then a MotorGuard filter and an AirGuardian
    desiccant filter at the 1650, so I think I'm getting clean dry air. Machine is
    not sloppy. Does anyone have any ideas what could cause this slight oscillation?
    95% of the cuts were excellent cut quality with very easy to remove dross.
    I forgot to mention I was using water about 1-1/2 to 2" below the plate.

    Thanks in advance,
    Mike Scalise
    Deep South Texas

  2. #2
    Registered
    Join Date
    Apr 2003
    Posts
    531
    I'm just guessing but if it's not water in the air or an air pressure fluctuation issue, could it be a voltage issue to the plasma cutter? If not that haven't a clue unless it's possible variations in the metal which seems highly unlikely? Off the top of my head thinking that once the arc voltage changes it will obviously effect the torch height... which in turn will affect the arc voltage... which will effect the torch height and back and forth which may explain the back and forth between the two cut voltages you were receiving? Seems like the ATHC is not responding fast enough to keep a constant arc voltage setting. Strange they are consistent between those two voltages though, and 2 seconds seems like a long time for the ATHC to adjust the cut height. Is the switch set to "cut" and the voltage set to either 138 or 143? Is it changing as it passes over your table slats? Don't remember mine ever doing this, so interested in any additional findings.

  3. #3
    Registered
    Join Date
    Feb 2004
    Posts
    74
    This has me completely stumped. I called Torchmate tech support and the answer I got was 'it's the carbon in the steel'!
    That's an answer I expect from people that hire people off the street for a tech job.
    The slats aren't the problem as some of the long ways cuts were in between the slats.
    I'm going to check for air leaks and I'll post a reply if that turns out to be the problem.
    Thanks,
    Mike S.

  4. #4
    Registered
    Join Date
    Apr 2003
    Posts
    531
    Good luck Mike!

Similar Threads

  1. Blue Screen mostly black instead of blue
    By turmite in forum Screen Layouts, Post Processors & Misc
    Replies: 1
    Last Post: 07-01-2013, 10:27 PM
  2. Torchmate AVHC lockout
    By Conrad_Turbo in forum Torchmate
    Replies: 3
    Last Post: 03-26-2013, 08:49 PM
  3. DIY AVHC for Torchmate 2X2?
    By jurban in forum Torchmate
    Replies: 33
    Last Post: 09-21-2012, 10:24 AM
  4. No Motor Detected on Torchmate AVHC
    By foofur in forum Torchmate
    Replies: 5
    Last Post: 11-22-2010, 01:05 PM
  5. Torchmate AVHC problems
    By ssderick in forum Torchmate
    Replies: 1
    Last Post: 09-14-2010, 07:13 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •