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--- 04_projects:02_kinetic_sand_table [2024/12/20 20:23] – [Stepper Motors] jattie
+++ 04_projects:02_kinetic_sand_table [2024/12/20 20:39] (current) – [Linear Stage] jattie
@@ Line 157: / Line 157: @@
 For my linear stage I decided to venture off the well travelled path and investigate alternative rail options.
+Browsing at my local hardware store I found polished oval rails like these and started working of a 3D printed design that can use cheap 3D printed options to turn these into a linear stage.
 {{:04_projects:screenshot_2024-12-20_202050.png?direct|}}
+{{:04_projects:screenshot_2024-12-14_173744.png?direct&400 |}}I created some oval shaped linear bearings for starters and testing them on the rails.
+The were designed with very tight fit tolerances.
+{{:04_projects:screenshot_2024-12-16_140548.png?direct&350|}}{{:04_projects:screenshot_2024-12-16_140559.png?direct&350 |}}
+Then created some bearing holders with idler pulley holders and mounts for the cross bar.
+The cross bar fit was also tight and I used a mallet to drive it on to avoid play. I realised I did not fit the bearing and designed a split bearing.
+The bearings are here: https://www.printables.com/model/1108249-oval-tube-linear-bearing-15x30x50mm
+The gantry sliders with bearing and idler pulleys are here: https://www.printables.com/model/1111593-oval-profile-linear-stage-single-bearing