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Type: Posts; User: Geof

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  1. Thread: Turning a sphere

    by Geof
    Replies
    24
    Views
    1,006

    Re: Turning a sphere

    I cannot give much more explanation other than what I included with the pictures in an earlier post. The holder is the cylindrical part with an external thread and a replaceable aluminum insert. The...
  2. Re: Speeds and feeds for 1018 steel are chipping my endmills!

    You may be going a bit fast. At 3250 rpm with a four flute cutter taking .001" per tooth you need about 18ipm, i.e. About half the speed you have (if my math is correct).
  3. Replies
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    451

    Re: Pipe Thread milling on VF3

    Don't do this on anything critical such as very high pressure piping. A tapered thread mill doing a single interpolation will make a thread that looks tapered to the naked eye but it is not a true...
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    657

    Re: Cycle time comparison - VF2 VS. DM-1

    Take a copy of your program to your HFO or send it to Haas in Oxnard and have them run it on each machine. You do not need tools or parts just the machining running a full cycle.
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    1,519

    Re: Good source for mid grade tool holders - CAT 50

    You are not buying an "entry to mid level machine" why are you cheaping out on the tool holders?

    Your spindle will be much happier, now and in ten years time, if the only tool holders you have...
  6. Replies
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    2,403

    Re: Lifting a Haas VF3 off a flatbed semi

    Lifting a VF3 with a 20,000lb forklift is childsplay, provided you have long forks. A GR510 is much more fun.

    https://www.youtube.com/watch?v=CVrwxm0IPwA

    The video is in this thread:...
  7. Re: VF-2 Won't feed IPM, will rapid tap and run spindle

    Did you try using the feed over ride keys? Rigid tapping ignores any over ride so it could be that a faulty over ride key is giving a spurious signal that locks the control.
  8. Re: Haas spindle time not correct. Reading way high.

    The motion hours are also spurious; it is impossible to have motion hours larger than servo on hours because the servos cause the motion.
  9. Re: Haas VF3-SSYT 40 taper rigid enough for mostly stainless steel machining?

    That is a good question and I think the answer is a qualified yes; although you might get people who say no.

    The qualification is that with modern tooling and CAM hard to machine materials can be...
  10. Replies
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    5,410

    Re: Brand New Haas VF3 and Pricing

    You say " you know the prices are substantially inflated they want $1695 for 750mb of memory ... but to some extent this is not the case. The base price is for a minimalist machine which can allow...
  11. Replies
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    1,681

    Re: Super Mini not homing properly

    You have been told the cause of the problem but nobody mentioned how to get the X axis off the hard stop at the end of the ballscrew; I am guessing that is how the machine is sitting while you are...
  12. Thread: 4ax opins & pics

    by Geof
    Replies
    3
    Views
    288

    Re: 4ax opins & pics

    No the rotary stays inside off to the right.

    I just noticed you mention VF2/3: For changing the rotary on our VF2 I modified an engine hoist so the feet could straddle the base of the machine.
  13. Thread: 4ax opins & pics

    by Geof
    Replies
    3
    Views
    288

    Re: 4ax opins & pics

    Is this the one you remember?

    http://www.cnczone.com/forums/haas-mills/22023-super-minimill-vise-rotary-changeover.html
  14. Replies
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    1,267

    Re: Bad spindle encoder

    Have you unplugged everything and then reconnected? The encoder signals are logic level current and voltage and the connections are just as prone to developing bad contact due to oxidation as any...
  15. Replies
    3
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    292

    Re: VF2 2008, Internal Coolant!!

    Inside the electrical cabinet on the main control board there are Phase indicator LEDs labelled PASS/FAIL just have a look at these to see if the phasing is correct. The Through Spindle Coolant pump...
  16. Re: Controls locks when I Push the "list Prog" button

    I should have thought to tell you my failsafe method (so far); bang on the side of the control box with your fist. This has 'fixed' an intermittent glitch in my jog wheel for several years. Someday I...
  17. Replies
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    573

    Re: Looking for lexan cover for my Mini Mill

    It took me about three hours to make a few aluminum brackets and cut and install a flat polycarbonate cover on my first MiniMill; the formed cover was not available back then so I did not save myself...
  18. Re: new guy, need help understanding tool nose compensation

    To answer your last question first: Treat the TL machines the same as you would a regular CNC lathe with the tool on the side opposite from the operator. Somewhere in the Toolroom Lathe addendum to...
  19. Replies
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    2,318

    Re: Help with Cutter Compensation.

    Alternatively you may want to use two different Ds for the same tool.
  20. Replies
    6
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    660

    Re: Haas SMM2 3 PH Rotary Inverter

    It is overkill but you may be stuck with it if you have to stay within Code.

    I think the 2.5 multiplier for starting current and safety is based mainly on large induction motors which will draw...
  21. Thread: Options code time

    by Geof
    Replies
    3
    Views
    410

    Re: Options code time

    It is machine ON time so if you activate them and just leave the machine powered up your time is running away.
  22. Replies
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    3,789

    Re: Poor finish on a Mini Mill SS

    Question for you:

    The floor toolpaths that show the tight little swirls, are they trochoidial paths? (I don't think my spelling is correct.)
  23. Replies
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    463

    Re: Bad ball screw nut or bad bearings?

    I cannot answer your question despite having a VF0 that made the same noise when doing a rapid on the X axis. I hauled off all the covers and tried to identify which it was even using an engine...
  24. Replies
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    896

    Re: production run issues w/ ST20-SSY

    You want to make multiple parts from one length of stock before you stop the machine and pull the bar out further? That is what it sounds like.

    If this is the case you need to read up on G52...
  25. Thread: TL1 CRASHED

    by Geof
    Replies
    2
    Views
    365

    Re: TL1 CRASHED

    It sounds like you have moved the headstock. You can check whether the face of the chuck is parallel to the X axis using an indicator, and you will probably find it is out the same as your X taper.
    ...
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