Prusa i3 x-axis Idler with Tensioner
Description
After Building A Prusa I3 Rework By Emotion-Tech, I Found The X Axis Idler Block To Be Weak, And The Printer In Desperate Need Of A Way To Adjust Belt Tension. It Uses Two Bearing That Were Salvaged From A Hard Drive And A 5Mm Pin Cut Down To Be Just Short Enough To Fit Inside The Pocket. A 5Mm Bolt Will Slide Into The Bearing Pocket And Through The Outer Block Where A Nut Can Be Fitted And Used To Adjust The Tension On The Belt. This Is A Direct Bolt In Swap, You Shouldn'T Have To Modify The Belt In Any Way. I Am Using Mechanical Endstops, So It Does Not Have Provisions For The Optical Endstops Like The Part It Replaces.
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