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Helpful Tools

Add helpful tools here like pulley ratio calculators,center distance designers,etc.

Top Resources

  1. OXcalculator - Bill of Material and Cost calculator
    OXcalculator - Your computer figures out the parts you need to build your OX by giving it X, Y & Z - by Serge E.
    Updated: Apr 20, 2015
  2. Handy inch/mm chart
    Handy thing to have :) - by Robert Hummel
    Updated: Feb 4, 2014
  3. Stepper Calculator
    Excel sheet to work out steps. - by Kyo
    Updated: Dec 8, 2016
  4. OpenBuilds Actuator Test Rig
    Actuator Testing for real world results - by Rob Stehlik
    Updated: Jul 29, 2016
  5. Joseph Prusa's and Nathan Zadoks - RepRap Calculators
    Useful set of calculators for RepRap users. - by Mark Carew
    Updated: Dec 14, 2013

View All Featured Project Resources

  1. How to calculate V-Slot® deflection

    How to Estimate Deflection in Your Open Builds Projects
  2. OXcalculator - Bill of Material and Cost calculator

    OXcalculator - Your computer figures out the parts you need to build your OX by giving it X, Y & Z
  3. Share A Part

    Have an idea for a part that would make a great addition to the OpenBuilds line up?
  4. Materials Speeds and Feeds Chart

    Great speeds and feeds chart for 1/4" milling of lots of materials
  1. MTO

    V-slot clip

    it clips onto V-Slot
    0/5, 0 ratings
    Updated:
    Oct 17, 2018
  2. Kevr102

    CNC Xpro V3 3D printed dust cover 2018-06-07

    dust free xpro x3
    0/5, 0 ratings
    Downloads:
    14
    Updated:
    Jun 7, 2018
  3. Brian Beebe

    Gantry Plate and Verticle Table for OX XL 2018-03-09

    A verticle table for milling ends of stock for joinery
    5/5, 1 rating
    Downloads:
    21
    Updated:
    Mar 9, 2018
  4. Justinwt
    0/5, 0 ratings
    Downloads:
    203
    Updated:
    Oct 27, 2017
  5. Scotty Orr

    Wayne Goldman Model 534 Hacksaw Mitre Box

    Excellent mitre box for cutting V-Slot and C-Beam!
    5/5, 2 ratings
    Updated:
    Oct 26, 2017
  6. Anthony Bolgar

    6" hold down clamp 2017-07-21

    CNC hold down clamp
    0/5, 0 ratings
    Downloads:
    63
    Updated:
    Jul 21, 2017
  7. Peter Van Der Walt

    NCThumbNail 2017-06-12

    View GCODE Thumbnails in Windows Explorer with NCThumbNail
    0/5, 0 ratings
    Downloads:
    24
    Updated:
    Jun 12, 2017
  8. Kyo

    Stepper Calculator 2016-12-08

    Excel sheet to work out steps.
    5/5, 3 ratings
    Downloads:
    554
    Updated:
    Dec 8, 2016
  9. Mark Carew

    Bellows Maker 2016-11-19

    A great bellows making tutorial
    0/5, 0 ratings
    Downloads:
    114
    Updated:
    Nov 19, 2016
  10. Anthony Bolgar

    CNC router bit feeds and speeds wall chart 2016-11-12

    Recommended speeds for various router bits
    5/5, 2 ratings
    Downloads:
    714
    Updated:
    Nov 12, 2016
  11. Rob Stehlik

    OpenBuilds Actuator Test Rig

    Actuator Testing for real world results
    5/5, 3 ratings
    Updated:
    Jul 29, 2016
  12. Kyo

    Table Top Hotwire Cutter 2016-04-01

    Table top hot wire foam cutter with fence for accurate cuts designed in sketchup..
    5/5, 1 rating
    Downloads:
    71
    Updated:
    Apr 2, 2016
  13. Giarc

    Steps per unit calculator 2016-03-20

    Steps per unit calculator
    0/5, 0 ratings
    Downloads:
    225
    Updated:
    Mar 20, 2016
  14. Mark Carew

    ANIMATED MECHANICAL MECHANISMS 2016-02-20

    Awesome resource of inspiration for anyone who has a love for mechanisms and linkages!
    5/5, 1 rating
    Downloads:
    85
    Updated:
    Feb 20, 2016
  15. maleuffy
    0/5, 0 ratings
    Downloads:
    1,241
    Updated:
    Feb 3, 2016
  16. Serge E.

    Lots of "free" 3D models and 2D patterns 2015-12-22

    Here is a list of libraries including free 2D patterns and 3D models to get you going ...
    5/5, 1 rating
    Downloads:
    309
    Updated:
    Dec 22, 2015
  17. Josh B

    Feeds and speeds calculator - an online resource 2015-08-20

    Free online feed and speed calculator
    5/5, 1 rating
    Downloads:
    234
    Updated:
    Aug 20, 2015
  18. Timothy March
    5/5, 1 rating
    Downloads:
    61
    Updated:
    Jul 23, 2015
  19. Kyo

    Delta Frame Calculator 2015-07-11

    Used to determine delta frame size, arm length, print area.
    0/5, 0 ratings
    Downloads:
    533
    Updated:
    Jul 11, 2015
  20. David the swarfer

    Speeds and feeds for wood and plastics 2015-05-22

    Calculate your speeds and feeds, it works better that way
    5/5, 1 rating
    Downloads:
    650
    Updated:
    May 22, 2015
  21. Joe Santarsiero

    Nook ACME critical speed chart 2015-05-02

    ACME screw critical operating speed. (RPM)
    5/5, 1 rating
    Downloads:
    36
    Updated:
    May 2, 2015
  22. Mark Carew

    Convert SketchUp to DXF or STL and make anything! 2015-04-01

    Easy ways to convert SketchUp files into DXF/STL files to use on your machines!
    5/5, 2 ratings
    Downloads:
    436
    Updated:
    Apr 1, 2015
  23. HLClarkson

    Handy inch/mm chart upgrade 2015-01-27

    PDF's of Robert Hummel's upload of Feb 4 2014
    5/5, 2 ratings
    Downloads:
    98
    Updated:
    Jan 27, 2015
  24. Hytech2k

    Free Online Feeds and Speeds wizard 2015-01-03

    Online feeds and speeds wizard
    5/5, 1 rating
    Downloads:
    242
    Updated:
    Jan 3, 2015
  25. skarab

    Cambam (G-Code) Canned Drilling Cycles Converter 1.0.0

    Convert G-code files with canned drilling cycles operations into normal G-code
    0/5, 0 ratings
    Downloads:
    58
    Updated:
    Dec 5, 2014
  26. Nugz

    Metric Conversion Calculator 2014-11-17

    Quickly convert measurements from mm to inch and vice versa.
    0/5, 0 ratings
    Downloads:
    64
    Updated:
    Nov 17, 2014
  27. blindflight
    0/5, 0 ratings
    Downloads:
    259
    Updated:
    Nov 1, 2014
  28. steelspinner

    Stepper Motor Calculator .ods

    Basic stepper motor calculations
    5/5, 1 rating
    Downloads:
    610
    Updated:
    Oct 31, 2014
  29. Paruk

    The CNC Cookbook 2014-10-26

    Speeds and Feeds for CNC milling
    0/5, 0 ratings
    Downloads:
    445
    Updated:
    Oct 26, 2014
  30. GrandpawB

    Metric conversion 2014-02-01

    charts and calculators
    0/5, 0 ratings
    Downloads:
    75
    Updated:
    Feb 1, 2014
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