Tronxy X1 Y-Axis Cosine Corrector
Description
The Bed Connection Points For (Especially) The Y Axis Are Pulled Out Of The Plane They "Should" Run In. This Introduces [Cosine Error](Https://Www.Youtube.Com/Watch?V=D4Gymgoo468) (Or [Abbe/Sine Error](Https://En.Wikipedia.Org/Wiki/Abbe_Error) Depending On How You Look At It), Both In The Y Distance, And In The Belt Tension. (If You Set The Belt Tension At The End Of The Travel, Then It'S Slack In The Middle; Set It In The Middle, And It Either Stretches Or Pulls Out At The Ends.) This Block Sits Below The Bed, And Returns The Belt To Horizontal. (The Motor Side Of The Belt Sits Lower Than The Idler Side, So They'Re Horizontal Relative To Their End Points.) This Means That There Is A Constant Belt Length, And Thus Constant Tension, Allowing More Accurate Positioning And Lower Backlash In The System. The Block May Be A Bit Large For Standard Spacers, Since Mine Were Missing And I Replaced Then With Ones I Had To Hand. I'Ve Included The F3D Source File So You Can Trim It To Fit. My Measured Bed-To-Extrusion Height Was 11.54Mm, So Trim The Difference Off The Top. This Is Best Printed With The Major Axis Along The Y Axis Since The Allowance Is In That Direction So That It Turns Out The Right Size On An Uncorrected Bed.
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