GT2 Belts: Difference between revisions

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*The question is - how much does the belt stretch upon motion?
*The question is - how much does the belt stretch upon motion?
*Why is there no resource that states belt stretch as a function of force?
*Why is there no resource that states belt stretch as a function of force?
*Contact Application Engineering Department - this bible - [http://file.lasersaur.com/docs-thirdparty/The_World_of_Timing_Belts.pdf]
*Contact Application Engineering Department - this bible - [http://file.lasersaur.com/docs-thirdparty/The_World_of_Timing_Belts.pdf]- Tel: 516-328-3300

Revision as of 11:55, 5 April 2017

  • 5 thousandths, or .12 mm - is enough to cause trouble. Depth of cut is .12mm for circuits.
  • See Shapeoko discussion - [1]
  • Latest Shapeoko uses GT2 9 mm
  • Most RepRaps use GT2 6 mm

Calculations

  • Positioning accuracy of GT2 belt - Say 1/2" pulley. Circumference about 40 mm. 200 steps per revolution = .2 mm positioning - but with 16 microstepping RAMPS standard - we get down to 0.01 mm positioning accuracy, or 0.5 thousandths
  • Chart at [2] shows positioning accuracy of GT2 belt to be 0.0003 - about half that of the RAMPS 16 microstepping standard
  • The question is - how much does the belt stretch upon motion?
  • Why is there no resource that states belt stretch as a function of force?
  • Contact Application Engineering Department - this bible - [3]- Tel: 516-328-3300