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  1. Replies
    6
    Views
    511

    Thanks everyone. Brian in particular for the...

    Thanks everyone. Brian in particular for the detailed post.
    I imagined making a male electrode with all the features to erode the square openings+chamfers+outer shape. Maybe just drill the holes...
  2. Replies
    6
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    511

    Is this part suitable for Sinker EDM?

    Hello friends.

    I am attaching a few pictures of a part we are currently manufacturing by machining from 0.025" sheet stock.
    material - 1075 carbon steel
    General tolerance +- 0.003" (see some...
  3. Thank you for your input. I was planning to...

    Thank you for your input.

    I was planning to finish the part with considaration to coating thickness with a 0.0004" feed per revolution,
    perhaps with a diamond turning tool to meet the best...
  4. Grinding hard anodize type III to size?

    Hello friends!

    I have a new challenge ahead;

    we need to make a few parts that have a drawing callout of grinding after hard anodize (around 0.002-0.003" thick) with a surface finish of N4.
    ...
  5. Replies
    21
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    12,573

    Hello guys, excuse me for bumping this thread but...

    Hello guys, excuse me for bumping this thread but on my MULTUSB200 OSP-P300 control I am using the block number search from the F keys restart, followed by the restart button on the panel, let...
  6. Replies
    8
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    1,146

    Millturn workholding! (with pictures)

    Hello friends,
    I wanted to share two ways of gripping dovetailed stock in a power chuck;

    I do the programming and setup on two multusb200 machines and started doing so about 3 years ago with...
  7. Need help with ball/sphere turning (pictures attached)

    Hello guys!

    I tried to turn a 3/16" ball on the subspindle of a Multusb200 with a 3mm (.118") full radius insert.
    and couldnt turn the full ball, then finally resorted to using a normal grooving...
  8. Replies
    13
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    1,247

    photos and further explanation

    Ok thank you for your replies,
    here is an attached image.
    to make things clear - once we've failed to reach runout < 0.0004" with a tailstock we've abandoned the tailstock and made the fixture in...
  9. Replies
    13
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    1,247

    tailstock to rotary alignment issues.

    Hello friends.

    Recently we've had a job running a very precise part that is approx. 12"x14"x5" cube with a few profile to datum callouts that require the fixture we work on to rotate around the...
  10. Beam coupling spiral - how do you cut it?

    hello friends,

    I need to machine a 3 start 0.012" wide spiral on a ss beam coupling.
    (OD of coupling is 5/8" and ID is roughly 3/16")
    I am wondering how are these spirals on couplings machined?...
  11. how to machine 0.012" thick spiral on ss coupling?

    hello friends,

    I need to machine a 3 start 0.012" wide spiral on a ss coupling.
    I am wondering how are these spirals on couplings are machined?
    they are usually very thin, and using a slitting...
  12. problem solved, I phoned our okuma support guy...

    problem solved,
    I phoned our okuma support guy and he immediately found the problem,
    first home shift was before a 'Y on' g138 issued,
    all subsequent homes were after the g138.
    prior to g138 Y...
  13. MULTUS G174 home shift milling mode/ turning mode

    Hello guys.

    I have a little problem I would like to take care of;
    I have sent a test program of a profile milling / drilling / tapping on 4 sides of a cube on the YZ plane on a Multus mill turn...
  14. Hello guys, I want to share what i eventually...

    Hello guys,

    I want to share what i eventually used and worked for me:


    OSUBR (SUB SPINDLE REMOVE PART ALARM)

    G140
    IF [VORD[1147] EQ 0] GOTO NEND
    NTOP
  15. Thank you. I will refer to the programming manual...

    Thank you. I will refer to the programming manual as I did not understand all of the above parameters. I would also need it in ssb format
    I guess I should simply add rts instead of m02 in the end...
  16. Osp-p300 multus b200-subroutine for subchuck alarm when new part is loaded?

    Hello dear machinists!

    I have had a nasty crash this week when an operator forgot to unload a part from the subspindle, and loaded a new part to the main spindle.
    this resulted in a bad crash...
  17. Quote Originally Posted by MULTUSB200 View Post...

    Quote Originally Posted by MULTUSB200 View Post
    Hello all,

    I am looking for material regarding stress relief and it's affect on dimensional stability.
    I am currently making a very precise part...
  18. How does stress relief affect part measuring stability (aluminum 6061)

    Hello all,

    I am looking for material regarding stress relief and it's affect on dimensional stability.
    I am currently making a very precise part from round stock on a MTM Okuma Multus machine....
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