Spring-loaded NEMA 17 steppers / belt tensioner
Description
This Is An Improvement To Precisely Set And Keep A Given Belt Tension By Pulling The Stepper Motor Downwards With A Spring. Some People Were Asking For It In The Original Design, Mainly To Reduce The Risk Of Over-Tightening The Belt. So Here It Is: Obviously You'Ll Need An Appropriate Spring And A Fews More Nuts & Washers. Additionally, It Might Even Compensate Belt Length Variations During Print If The Stepper Is Kept Slightly Loose Update: I'Ve Added A 4-Screw Version, Probably Required If You Do Not Have The Wooden Plates But 4 Cylindrical Independent Spacers.
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