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Type: Posts; User: mmurray70

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  1. Replies
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    1,550

    Thats great, at least you know the drives and...

    Thats great, at least you know the drives and servos are good. A 1.5v battery would be safer as most drives are +/-10v. A resistor is normally used in series to prevent damage if you put voltage to...
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    1,550

    Good choice, your off to a good start. There is a...

    Good choice, your off to a good start. There is a dynomotion forum on the zone, the owner Tom posts regularly and will be a great help with any questions about the conversion. You should start a...
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    1,550

    Forget about steppers, you dont want to mess with...

    Forget about steppers, you dont want to mess with that. Original servos and drives can most likely be used. Check out Dynomotion Kflop/Kanalog controller. This will let you control anything you could...
  4. Replies
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    1,772

    Id do it the exact same way, ramp down with...

    Id do it the exact same way, ramp down with insert endmill. I like using Sandvik R390s for this, it will have no problem with flame cut mild steel. You can use the same tool at 2-3 different depths...
  5. Angle head maintenance. Backlash/gearing/greasing questions

    Hi, Im using an import angle head for a bridgeport and the gears are kinda noisy in it. Here is the one im using: Milling Machine Accessory - Right Angle Attachment R8 fits Bridgeport – Eisen...
  6. Thread: Doosan

    by mmurray70
    Replies
    36
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    4,406

    The GT2600 is not much more and has a bigger work...

    The GT2600 is not much more and has a bigger work capacity and a little more power. Seems like a better buy.
  7. Replies
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    741

    Yeah mine is doing the same thing. Its a little...

    Yeah mine is doing the same thing. Its a little tighter closing and then very hard to open it.

    I kinda doubt its chips in the movable jaw, but i guess i could check it. I think its in the bearing...
  8. Replies
    8
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    741

    Kurt DX6 Vise sticking??

    I got a couple fairly new DX6 vises and one seems to sticking when loaded. Both are free to turn when unclamped, but one seems to bind a little when clamping load comes on it. Makes it hard to get...
  9. Replies
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    843

    Where did 31 IPM come from? I said 3?

    Where did 31 IPM come from? I said 3?
  10. Replies
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    843

    I agree, you want the coolant right on the tip of...

    I agree, you want the coolant right on the tip of the drill/hole when it retracts.

    I like to run 50sfm and 3IPM in stainless. Id do a full retract and 0.100 pecks.
  11. Replies
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    1,821

    I have an early 80s QT10 with T1 control and its...

    I have an early 80s QT10 with T1 control and its still working great as well. I would try and avoid the T1 control though honestly if you can, too many limitations with the T1.



    Exactly....
  12. Replies
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    734

    They are solid state relays with round pins on...

    They are solid state relays with round pins on the bottom. They pull straight out, and just push back in. Fadal uses a bunch of these. The larger 3a ones have a black case around them, and some of...
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    734

    Also, as a work around for now, instead of hand...

    Also, as a work around for now, instead of hand loading tools, you can program in some extra toolchanges to make it go CW only. For example you cant go from T3 to T1, but you can go from from T3-T13...
  14. Replies
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    734

    Yes it needs a go command and a reverse command...

    Yes it needs a go command and a reverse command to turn backwards. It actually uses a single phase motor which is strange for a vmc. The go command is providing power and the reverse command switches...
  15. Replies
    29
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    2,987

    Best bet would be 0.5" stock and soft jaws for...

    Best bet would be 0.5" stock and soft jaws for OP2 as others suggested.

    Another quick and dirty trick I like to use sometimes is to use same size stock (0.375) and machine the outside to a depth...
  16. Replies
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    2,056

    Maybe it would help in theory for some cases, but...

    Maybe it would help in theory for some cases, but when the whole tip cracks off its not much help at all.
  17. You should have no problem drilling 20mm deep...

    You should have no problem drilling 20mm deep without through coolant. Try increasing feed to make a heavier chip. Or maybe get a different insert or drill. I recently used a Sandvik 870 drill to do...
  18. Replies
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    2,056

    Look at the insert from this angle and you dont...

    Look at the insert from this angle and you dont have to wonder why the tip is crumbling. What were they thinking?? Its just way to weak to have such a thin section stuck off like that.
  19. Replies
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    2,056

    I tried them in steel and wouldn't recommend...

    I tried them in steel and wouldn't recommend them. The tip is very weak and cant hold up to any heavy feedrates at all. Also the coolant holes exit about 3/4" back from the tip leaving the tip prone...
  20. Replies
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    Hi guys I got this job finished now and just...

    Hi guys I got this job finished now and just posting a follow up on how the Sandvik and Kennametal drills compared. The Sandvik 870 is the clear winner. It had no problem running at 0.012 IPR and...
  21. Replies
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    2,614

    All the fans seem to be running fine. I did get...

    All the fans seem to be running fine. I did get the machine to shut down once by tapping the electrical cabinet, which seems to suggest a loose connection somewhere. I've wiggled all sorts of...
  22. If you are doing small, short parts, use your...

    If you are doing small, short parts, use your Fadal Mill as a vertical lathe. Put a bunch of lathe tools in vises or make a dedicated block to hold whatever tools needed for a given job and go at it....
  23. Replies
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    2,614

    Anybody else have any suggestions? This is...

    Anybody else have any suggestions? This is happening to me now once or twice a day. I've checked power supply voltages, re-seated the power on ice-cube relay, tightened all the line connections into...
  24. Replies
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    2,614

    My T1 did this a couple times in the past week....

    My T1 did this a couple times in the past week. Anybody else ever see this? Bob did you ever find out what was causing it? Thanks.
  25. Replies
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    Thats pretty much the numbers I was thinking. I...

    Thats pretty much the numbers I was thinking. I was mostly wondering if I should go a little more then 10% since its not the entire flute length.

    I tried one part at 7000 rpm, 140 IPM and 10%...
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