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Home: Linear & Rotary Motion

General discussion for lead screws, rack and pinion, synchronous drive components, belt and pulley drive mechanisms.

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  1. Belt Drive, Pulleys & Timing

    Discussion for belt driven machines, systems, drive components and timing.

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    Forum Statistics:

    • Threads: 41
    • Posts: 419

    Last Post:

  2. Rails, Guideways & Bearings

    General discussion for all types of linear rail/guideway, linear actuators and their bearing blocks.

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    Forum Statistics:

    • Threads: 80
    • Posts: 680

    Last Post:

  3. Rack & Pinion Systems

    General discussion for rack and pinion linear systems.

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    Forum Statistics:

    • Threads: 12
    • Posts: 84

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  4. Lead Screws, Nuts & Supports

    General discussion for Lead Screws and Drive Nuts.

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    Forum Statistics:

    • Threads: 107
    • Posts: 1,032

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  1. Thumbs up Sticky Thread Sticky: Axis Directions

    Started by ptjw7uk, 06-09-2009
    axis, directions, xyz 2 Attachment(s)
    • Replies: 9
    • Views: 42,052
    A_Camera
    18-02-2022 Go to last post

  1. cnc machine stiffness calculator

    Started by routercnc, 23-08-2010
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 13
    • Views: 74,072
    routercnc
    02-09-2022 Go to last post

  2. Z-axis design - help sizing materials please!

    Started by Jonathan, 20-08-2010
    6 Pages •
    1 2 3 ... 6
    9 Attachment(s)
    • Replies: 52
    • Views: 51,704
    phill05
    22-08-2010 Go to last post

  3. Straightness of steel/alumunium box section

    Started by Jonathan, 23-08-2010
    6 Pages •
    1 2 3 ... 6
    15 Attachment(s)
    • Replies: 50
    • Views: 50,460
    blackburn mark
    17-09-2010 Go to last post

  4. 4th axis as a "poor man's lathe"

    Started by A_Camera, 17-05-2021
    4 Pages •
    1 2 3 ... 4
    5 Attachment(s)
    • Replies: 32
    • Views: 45,837
    A_Camera
    28-05-2023 Go to last post

  5. dual drive x-axis?

    Started by fasteddy, 07-06-2009
    4 Pages •
    1 2 3 ... 4
    drive, dual, xaxis 3 Attachment(s)
    • Replies: 36
    • Views: 41,621
    John S
    13-06-2009 Go to last post

  6. will this 4th axis work

    Started by johngoodrich, 14-08-2017
    5 Pages •
    1 2 3 ... 5
    9 Attachment(s)
    • Replies: 43
    • Views: 39,283
    machpoet
    21-06-2018 Go to last post

  7. Mounting motor under table?

    Started by Rogue, 01-09-2011
    6 Pages •
    1 2 3 ... 6
    4 Attachment(s)
    • Replies: 51
    • Views: 37,497
    Rogue
    16-04-2012 Go to last post

  8. Chinese MGN rails. Should I use them?

    Started by andy1989, 29-09-2017
    • Replies: 5
    • Views: 35,053
    Boyan Silyavski
    17-10-2017 Go to last post

  9. Some questions to JAZZCNC or any other closed loop stepper experts

    Started by A_Camera, 11-06-2021
    3 Pages •
    1 2 3
    1 Attachment(s)
    • Replies: 25
    • Views: 31,199
    A_Camera
    27-07-2021 Go to last post

  10. Greasing Hiwin 15mm

    Started by Desertboy, 06-01-2018
    2 Pages •
    1 2
    • Replies: 13
    • Views: 29,408
    bstautomation
    01-11-2018 Go to last post

  11. Poll Poll: Belt drive vs direct coupling pro's and cons, Poll

    Started by Desertboy, 28-08-2017
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 10
    • Views: 28,671
    Clive S
    28-02-2021 Go to last post

  12. Chinese Harmonic 4th axis

    Started by Leadhead, 09-06-2017
    2 Pages •
    1 2
    • Replies: 16
    • Views: 26,709
    Rey8801
    17-09-2019 Go to last post

  13. New build - Screw specification???

    Started by HiltonSteve, 15-05-2009
    3 Pages •
    1 2 3
    build, screw, specification
    • Replies: 25
    • Views: 23,850
    John S
    21-05-2009 Go to last post

  14. Hiwin rails / blocks

    Started by BriceO, 11-06-2018
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 12
    • Views: 22,436
    suspension
    13-06-2023 Go to last post

  15. "Racks" VS "ball screw"

    Started by C.AlveSilva, 16-03-2012
    • Replies: 1
    • Views: 22,332
    backyard_cnc
    17-04-2012 Go to last post

  16. Stepper shaft size and pulley bore size problem

    Started by psiron, 14-06-2010
    2 Pages •
    1 2
    • Replies: 13
    • Views: 22,241
    psiron
    15-06-2010 Go to last post

  17. Nitrile O-ring belt drive - suggested stretch percentage..?

    Started by Wal, 09-05-2014
    3 Pages •
    1 2 3
    7 Attachment(s)
    • Replies: 23
    • Views: 21,771
    Wal
    13-05-2014 Go to last post

  18. angular contact bearings - back to back, further apart

    Started by dsc, 04-01-2014
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 16
    • Views: 21,741
    dsc
    05-01-2014 Go to last post

  19. Linear Motion , CHEAP!!

    Started by c cunningham, 25-01-2011
    2 Pages •
    1 2
    • Replies: 10
    • Views: 21,581
    routercnc
    29-01-2011 Go to last post

  20. Workshop made Acetal / DELRIN Rack & Pinion

    Started by davo453, 17-04-2017
    3 Pages •
    1 2 3
    1 Attachment(s)
    • Replies: 26
    • Views: 21,140
    Boyan Silyavski
    26-04-2017 Go to last post
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