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  1. No machinist worth his salt would just set things...

    No machinist worth his salt would just set things using an angle plate or vise and assume that things were true and square.....
    All setups need to be verified as to truth...Never assume things are...
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    Erik: Although its not my favorite solution,...

    Erik:
    Although its not my favorite solution, often it is the only one that works for small spaces...
    Consider mounting the FP1 on rollers or casters. Make it movable. Mills do not need to be...
  3. Not sure this is exactly true.....Believe since...

    Not sure this is exactly true.....Believe since the spindle and the bearing sleeve are tapered, that one can tighten the radial clearance between the bushing and shaft(spindle) by
    moving the spindle...
  4. Thread: Riken RTM-3

    by AlfaGTA
    Replies
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    1,566

    Not a big fan of the long reach head setup. Nice...

    Not a big fan of the long reach head setup.
    Nice that it gives longer "Y" travels and positioning....which is a plus.
    But...... i am not a fan of the extra weight hanging on the relatively short...
  5. Bruce: There is a heavy washer inside where the...

    Bruce:
    There is a heavy washer inside where the housing forms a step where the bevel gear bearing seats.There is washer with a step to locate in the bore that sets on the casting step.
    Single bolt...
  6. Good reason to obtain an alternative vertical...

    Good reason to obtain an alternative vertical spindle (precision boring head) ....
    Or run horizontal and just interpolate the circle....:D
    ...
  7. Thread: Riken RTM-3

    by AlfaGTA
    Replies
    37
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    1,566

    A few more, just for fun. Shot of the rear of...

    A few more, just for fun.

    Shot of the rear of my FP3. Can see the drawbar nut at the rear of the "Y" ram (Allen socket takes 10mm allen key like the vertical head protractor bolts)
    Rear bellows...
  8. Thread: Riken RTM-3

    by AlfaGTA
    Replies
    37
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    1,566

    The later "square head" manual machines do not...

    The later "square head" manual machines do not use an arm to move the vertical head. Rather the entire top of the "Y" slide becomes a connection dovetail. Flat to the horizon (no step like earlier...
  9. Yikes,does not seem very "Swiss", Cheers Ross

    Yikes,does not seem very "Swiss",
    Cheers Ross
  10. Replies
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    Don't believe there are many "Aa-Ha" moments in...

    Don't believe there are many "Aa-Ha" moments in this trade. Its all cumulative. Setbacks, failures and small victories..You build on your skills and experience, stretch the scope of what you think...
  11. Thread: Riken RTM-3

    by AlfaGTA
    Replies
    37
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    1,566

    I find this all interesting and a bit curious....

    I find this all interesting and a bit curious.
    Its obvious that this purchase was not without difficulties. Wondering what was the overrunning motivation to acquire this mark.
    A bit less known,...
  12. Thread: Riken RTM-3

    by AlfaGTA
    Replies
    37
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    1,566

    I like the "wider" look of the later machine....

    I like the "wider" look of the later machine. Looks more robust, and perhaps may have longer "Y" travel having what looks like a deeper base.
    Disappointing i think that at 1985 that they had not...
  13. Not conversant in "Maho" so little help form...

    Not conversant in "Maho" so little help form here. Others may chime in with more details.
    Think what you have there is a "Point to Point" machine...not a true contouring CNC. Manual machine with...
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    So if i can't get to the system is there another...

    So if i can't get to the system is there another way to access the parameters?
    Cheers Ross
  15. Replies
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    Thanks for the reply. Tried opening the files...

    Thanks for the reply.
    Tried opening the files using a text editor (not notepad) and it just looks like chicken soup.....Nothing there that i can decipher.

    Cheers Ross
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    Frozen 21i control

    Have a nice little Harrison 330s Plus CNC lathe that is fitted with a Fanuc 21i control.(GE Fanuc)

    Was attempting to to clear an "X" and Z servo alarm.
    Batteries for servo drives are low and i...
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    Rumor is true, sort of.... Years back i was able...

    Rumor is true, sort of....
    Years back i was able to purchase inserts for both ID and OD 45/5 buttress threads.
    Maker was :Tool-Flo.
    Searching their current web offerings appears that they no...
  18. Not specific, but from my general experience. ...

    Not specific, but from my general experience.
    There are two (at least) bevel gear bearing arrangements.
    First version uses needle roller bearings to locate the gears radial position .
    On this...
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    Looks like there is a tool holder in the vertical...

    Looks like there is a tool holder in the vertical spindle....remove the holder and measure it....
    Lots of reference sources on the net giving specs for collets....

    If you know the dimensions and...
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    Nothing much to base my opinion on other than...

    Nothing much to base my opinion on other than some details, but i believe that the "face plate" threaded adapter is indeed shop built.
    Serial number not withstanding, lots of corporations mark and...
  21. Dave: If your looking for a true circle to get...

    Dave:
    If your looking for a true circle to get best fit and contact, i would finish the ID using a boring tool in a boring head.
    Profiling true circles requires lots of mechanical/electronic...
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    As to setting the gear backlash or...

    As to setting the gear backlash or clearance....just need to know that you have some.....some small strips of modeling clay (plasticene)
    rolled between your fingers to make thin rolls, and placed...
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    I would never check any gear mesh pattern or...

    I would never check any gear mesh pattern or bearing preload/clearance unless all bolts and retaining nuts were in place and torqued....things move even if you can't feel or see it!
    This is a lesson...
  24. My educated guess would put a new fresh assembly...

    My educated guess would put a new fresh assembly at somewhere around .014-.018mm or so (.0005-.0007")
    Would be a good question for Frantz....
    Cheers Ross
  25. Dave: You are cutting a bore no island,yes?...

    Dave:
    You are cutting a bore no island,yes?
    Does D2 not do G76?
    One line will do the whole job. Includes arc in and arc out on the finished profile...will cut to depth the lot....
    If you drill a...
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