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Type: Posts; User: mrsa

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  1. Thread: mill ballscrews

    by mrsa
    Replies
    17
    Views
    2,643

    Re: mill ballscrews

    Here shown a cnc retrofit of an old manual mill 1/3 of size than mine.
    He used cheap rolled chinese c7 ballscrews 2505 for x/z and 1605 for y
    reduction 1:2 with htd5m pulleys-belts 750w cheap...
  2. Thread: mill ballscrews

    by mrsa
    Replies
    17
    Views
    2,643

    Re: mill ballscrews

    For y axis i can use upto 100mm diammeter pulleys for both motor and ballscrew(more doesn't fit)
    servo motor will be be 1.8kw 3000rpm 6nm.
    5mm gt with 60teeth on ballscrew and 30teeth on motor 25mm...
  3. Thread: mill ballscrews

    by mrsa
    Replies
    17
    Views
    2,643

    Re: mill ballscrews

    It is imposible to do direct coupling in y and z axis i will use timing belt pulley.
    Pulley that will be mounted on y axis ballscrew can be maximum 100mm diameter to fit.
    Which type pulley-belt is...
  4. Thread: mill ballscrews

    by mrsa
    Replies
    17
    Views
    2,643

    Re: mill ballscrews

    5mm pitch doesn't need less torque from motor because for 10000mm/min rapids
    needs 2:3 reduction after the 3000rpm motor shaft and ballscrew will rotate at 2000rpm.
    10mm pitch for 10000mm/min...
  5. Thread: mill ballscrews

    by mrsa
    Replies
    17
    Views
    2,643

    Re: mill ballscrews

    Hello
    What is this green-skyblue filler material that has the oil groovings and is glued on mill dovetail ways?
    Mine mill has the same matterial and am looking to replace it...
  6. Thread: mill ballscrews

    by mrsa
    Replies
    17
    Views
    2,643

    Re: mill ballscrews

    Hello.
    In the photos shown the rotating nut leadscrew mechanism.
    I can mount ballnut on this and also mount a htd5m pulley
    like those shown in photo and motor below this mechanism by milling cast...
  7. Thread: mill ballscrews

    by mrsa
    Replies
    17
    Views
    2,643

    Re: mill ballscrews

    For Y axis surely i will go for 32mm ballscrew(heavier load than X) and for Z axis with more than 2kw servo
    because knee has a lot of weight.Exists some counterweight mechanism or will be more...
  8. Thread: mill ballscrews

    by mrsa
    Replies
    17
    Views
    2,643

    mill ballscrews

    Hello.
    I have an old mill about 3ton with 1m X axis
    that has X dovetail ways and 32mm leadscrew that
    is fixed with rotating bronze nut.
    Motion to all 3 axes are given by one 2kw 1000rpm dc...
  9. Replies
    1
    Views
    1,025

    Re: TruTops Mark crashes

    Hello.
    Which version of trutops mark you have and which trumpf marker ?
  10. Replies
    3
    Views
    2,837

    Re: epoxy granite vs natural granite

    thank you.
    What do you think about thickness of granite for this size machine? 12cm is enough or needed more for example 16cm ?
  11. Replies
    3
    Views
    2,837

    epoxy granite vs natural granite

    Hello
    What is better for vibration damping stiffness accuracy etc the natural granite or epoxy granite ?
    Because for me natural granite costs much less than epoxy granite...
    For a cnc router 2m X...
  12. Replies
    0
    Views
    1,672

    trumpf WinLas software

    Hello.
    Has anyone trumpf WinLas software that is for configuring trumpf lasers ?
    Thanks
  13. Replies
    14
    Views
    3,893

    Re: Granite base router

    I know that megapoxy is from the best glues in the market for marble/granite but costs about 200-250euros for 20liters
  14. Replies
    14
    Views
    3,893

    Re: Granite base router

    You use 75% alox 80 grit / 25% epoxy for leveling the place where linear rails will mounted?
    What you use as antistick agent so this mixture do not stick to leveling surface plate and damage it?
  15. Replies
    14
    Views
    3,893

    Re: Granite base router

    Iam collecting materials now to build a granite cnc router i have got 3 big slabs 3mx1.7m 4cm thick 2m hgr20 linear rails and 1605 ballscrews with end supports.
    Also i have a surface plate...
  16. Replies
    16
    Views
    4,938

    Re: Stone machines???? anyone?

    Hello.
    Same problem here with brembana cms speed 3 stone machine & fanuc 21i-MB controller
    shows 489 alarm ( coupling failure ) and needs an M code to reset it.
    In reality coupling does not failed...
  17. Replies
    0
    Views
    233

    fanuc BetaM servomotor pulsecoder

    Hello.
    I have a fanuc A06B-0115-B077 with the pulse coder βI64B
    The controller reports that pulse coder has problem and needs replacement.
    I have powered the pulse coder and it draws 0.2A at 5V...
  18. Replies
    14
    Views
    2,708

    Re: lathe grinding ways

    Hello again.
    Machine actually is 6Tons 15kw spindle heavy duty machine.
    The ways are new at both ends about 20cm under the chuck and 25cm where tailstock is because in this place never reached by...
  19. Replies
    5
    Views
    2,109

    Hello. I need also this manual. Thank you.

    Hello.
    I need also this manual.
    Thank you.
  20. Replies
    14
    Views
    2,708

    lathe grinding ways

    Hello. I have a lathe like this and i want to regrind ways. There is no machine shop in my area to do this. How can i do this myself ? What are the teqniques that exist to do this? The lathe ways is...
  21. Replies
    4
    Views
    911

    Re: waterjet for granite cutting

    Robot is kuka 180kg payload so it has enough power for waterjet.
    Repeatability is 0.1mm that is enough for me.
    Please see this video https://www.youtube.com/watch?v=qQ-76VCxs6I
    The cuts i want...
  22. Replies
    4
    Views
    911

    waterjet for granite cutting

    Hello.
    I have an 6 axis robot and i want to add water jet cutting option to the robot.
    What i need to buy for cutting granite slabs up to 3cm or up to 6cm thick ?

    Thanks.
  23. Replies
    0
    Views
    3,056

    3208 leadscrews backlash

    I have a big knee mill(>3tons) that has for X & Y 3208(32mm diameter 8mm step) leadscrews (X is about 1.5m) and i want to convert it to cnc(i have already the servo motors/drivers).
    To change...
  24. Replies
    24
    Views
    10,949

    Re: CNC machine made out of granite

    Something i forgot to ask you..
    What bolts diameter and inserts you used to joint granite pieces together ?
  25. Replies
    24
    Views
    10,949

    Re: CNC machine made out of granite

    I was very impressed by your idea.. so i will copy you. I got 2 big slabs 4cm thick 15mm 1.5m linear rails and 1.5m 1605 ballscrews. Also i have 4pcs servo motors 200w 2 for y 1 for x 1 for z. For...
  26. Thread: lathe z axis

    by mrsa
    Replies
    8
    Views
    1,624

    Re: lathe z axis

    What about 2005 ballscrew with rotating ballnut(not rotating ballscrew)?
  27. Thread: lathe z axis

    by mrsa
    Replies
    8
    Views
    1,624

    Re: lathe z axis

    spring is not a solution because i want z cutting from both sides left & right. What options exist for backlash free rack-pinion ? servobelt is ok for this application? What belt i need for servobelt?
  28. Thread: lathe z axis

    by mrsa
    Replies
    8
    Views
    1,624

    Re: lathe z axis

    Yes is a manual lathe now that has in Z axis feed bar for feeds leadscrew for threads and rack pinion for hand moving. But all these have backlash.
  29. Thread: lathe z axis

    by mrsa
    Replies
    8
    Views
    1,624

    lathe z axis

    I have a 2meters Z axis lathe (about 2tons machine) and i want to put a servo motor to move z axis. I don't want to use ballscrew because i need 32mm diameter 2+ meters ballscrew which is costly....
  30. Thread: rf tube hose

    by mrsa
    Replies
    0
    Views
    852

    rf tube hose

    Hello.
    What does this hose on rf tube ?
    https://i.ebayimg.com/images/g/A8AAAOSwPe1UKbIN/s-l1600.jpg
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