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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. Share A Part

    Have an idea for a part that would make a great addition to the OpenBuilds line up?
  3. 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
  1. Anthony Bolgar

    6" hold down clamp 2017-07-21

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

    NCThumbNail 2017-06-12

    View GCODE Thumbnails in Windows Explorer with NCThumbNail
    0/5, 0 ratings
    Downloads:
    11
    Updated:
    Jun 12, 2017
  3. Kyo

    Stepper Calculator 2016-12-08

    Excel sheet to work out steps.
    5/5, 3 ratings
    Downloads:
    336
    Updated:
    Dec 8, 2016
  4. Mark Carew

    Bellows Maker 2016-11-19

    A great bellows making tutorial
    0/5, 0 ratings
    Downloads:
    62
    Updated:
    Nov 19, 2016
  5. Anthony Bolgar

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

    Recommended speeds for various router bits
    5/5, 2 ratings
    Downloads:
    441
    Updated:
    Nov 12, 2016
  6. Mark Carew

    OpenBuilds Logos 2016-01-21

    OpenBuilds® logos in vector format to use in your designs
    0/5, 0 ratings
    Downloads:
    166
    Updated:
    Nov 11, 2016
  7. Rob Stehlik

    OpenBuilds Actuator Test Rig

    Actuator Testing for real world results
    5/5, 3 ratings
    Updated:
    Jul 29, 2016
  8. 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:
    66
    Updated:
    Apr 2, 2016
  9. Giarc

    Steps per unit calculator 2016-03-20

    Steps per unit calculator
    0/5, 0 ratings
    Downloads:
    172
    Updated:
    Mar 20, 2016
  10. 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:
    67
    Updated:
    Feb 20, 2016
  11. maleuffy
    0/5, 0 ratings
    Downloads:
    773
    Updated:
    Feb 3, 2016
  12. 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:
    246
    Updated:
    Dec 22, 2015
  13. Josh B

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

    Free online feed and speed calculator
    5/5, 1 rating
    Downloads:
    188
    Updated:
    Aug 20, 2015
  14. Timothy March
    5/5, 1 rating
    Downloads:
    53
    Updated:
    Jul 23, 2015
  15. Kyo

    Delta Frame Calculator 2015-07-11

    Used to determine delta frame size, arm length, print area.
    0/5, 0 ratings
    Downloads:
    282
    Updated:
    Jul 11, 2015
  16. 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:
    529
    Updated:
    May 22, 2015
  17. Joe Santarsiero

    Nook ACME critical speed chart 2015-05-02

    ACME screw critical operating speed. (RPM)
    5/5, 1 rating
    Downloads:
    35
    Updated:
    May 2, 2015
  18. 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:
    347
    Updated:
    Apr 1, 2015
  19. 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:
    85
    Updated:
    Jan 27, 2015
  20. Hytech2k

    Free Online Feeds and Speeds wizard 2015-01-03

    Online feeds and speeds wizard
    5/5, 1 rating
    Downloads:
    206
    Updated:
    Jan 3, 2015
  21. 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:
    52
    Updated:
    Dec 5, 2014
  22. Nugz

    Metric Conversion Calculator 2014-11-17

    Quickly convert measurements from mm to inch and vice versa.
    0/5, 0 ratings
    Downloads:
    57
    Updated:
    Nov 17, 2014
  23. blindflight
    0/5, 0 ratings
    Downloads:
    241
    Updated:
    Nov 1, 2014
  24. steelspinner

    Stepper Motor Calculator .ods

    Basic stepper motor calculations
    5/5, 1 rating
    Downloads:
    486
    Updated:
    Oct 31, 2014
  25. Paruk

    The CNC Cookbook 2014-10-26

    Speeds and Feeds for CNC milling
    0/5, 0 ratings
    Downloads:
    407
    Updated:
    Oct 26, 2014
  26. GrandpawB

    Metric conversion 2014-02-01

    charts and calculators
    0/5, 0 ratings
    Downloads:
    69
    Updated:
    Feb 1, 2014