growth series problems...again

Discussion in 'CNC Cutting' started by taktoa, Jan 23, 2018.

  1. taktoa

    taktoa Member

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    so in a week one of my 4x4 growth table had its moter break, a bearing stick, and one of the drive belts break. after getting everything together and the new parts installed i ran the torch up and down the gantry and the drive shaft came loose and cost me more work. finally the torch started cutting again 2 days ago and now its only successfully cutting maybe 7 out of 10 cuts properly. the weird thing is that after i cut and cut even something as simple as a circle ill cut out a row fine then the next one wont cut through no matter were the ground is or how new the consumables are. then it desides that it want to mess up and added 2 more circles to a cut... there is supost to be 4 holes in the circle. it also will distort the cut for all of them and so a circle one cut will be fine, next same path shows as an oval going one way, the next it will go the other and the next it will cut something that looks like that Christian fish symbol. the weirdest part is no matter how it miscuts, it always returns to the same program zero. any help would be awesome, i really dont want to have to deal with a torchmate tech support call.
     
  2. Dnmeistr-LECS

    Dnmeistr-LECS Well-Known Member

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    What you describe doesn't make a whole lot of sense, if the torch is returning to the original program zero then it did not lose position. Are you using TM4 driver software if so what version, help then about torchmate. If you do a dry run with the red cut light off on the height control box, flashing cut disabled, does it look like it is following the path shown on the screen.
     
  3. taktoa

    taktoa Member

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    Im using the VMD program and an Accumove 2. It will cut some weird shape but return to the same program zero as if it had just done the cut normally.
    And yeah on the computer it looks like its following the path on a dry run.
     
  4. Dnmeistr-LECS

    Dnmeistr-LECS Well-Known Member

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    Ok this may come about after you resume from a breakaway condition. Logon as Admin (password 1234) go to Machine Settings then the Inputs tab and change the Debounce times for Ohmic Cap to 10, Breakaway 1 to 300 and Breakaway 2 also to 300. To resume from a pause, reset the job and right click then Run From Here to resume from where you left off.
     
  5. taktoa

    taktoa Member

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    i just cut out 3 test cuts and one turned out good the rest still did the same thing... should the active level be high or low, and should the breakaways be set to pause?
     
    Last edited: Jan 25, 2018
  6. taktoa

    taktoa Member

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    our edges and lead in cutting really deep and messing up our cuts as well as everything that we cut is bevled for some reason. its just giving an overall bad cut quality.
     
  7. Dnmeistr-LECS

    Dnmeistr-LECS Well-Known Member

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  8. taktoa

    taktoa Member

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    are there any differences for aluminum?
     
  9. Dnmeistr-LECS

    Dnmeistr-LECS Well-Known Member

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    Only difference would be the cutting speed, slower than mild steel.
     
  10. taktoa

    taktoa Member

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    and what about it burning too long in corners?
     
  11. taktoa

    taktoa Member

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    Like this
     

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  12. Dnmeistr-LECS

    Dnmeistr-LECS Well-Known Member

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    What is your amperage and cut speed.
     
  13. taktoa

    taktoa Member

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    the set voltage is set at 85 and the feed rate is 110 ips
     
  14. taktoa

    taktoa Member

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    or do you mean on the torch iself? if so its running at 83 amps
     
  15. Dnmeistr-LECS

    Dnmeistr-LECS Well-Known Member

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    If this is 1/8" you should be running at 40 - 45 amps at 60 - 70 ipm there abouts, 1/4" at 40 - 50 ipm. You are cutting with too much amperage on thinner material.
     
  16. taktoa

    taktoa Member

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    what about 3/8 aluminum?
     

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