Objective
The goal of this project is to kind of combine two things I recently encountered and am curious about exploring. The first is a general concept for vibration isolating a Prusa printer, and the second is a strategy I’d like to explore for improving the stability of the stiffness of flexural elements in 3d printed parts…So what does that mean to you? A (hopefully) super cool set of vibration isolation doohickeys for your bed slinger!
IMG_1306.MOV
Build Instructions
Parts List
- (3) - BaseUnitFlexure.stl
- (1) - SpacerBlock.stl
- (6) - 60x10x5 Bar Magnets - These are the magnets that I am using and that I designed the flexure for, but any similarly sized bar magnets will be fine. I would expect dropping to a 3mm thickness would be fine also, but probably gonna start gettin some good bounce goin :)
- Some glue - I used this medium thickness CA glue for the magnets to the flexure, and it’s THICK sibling for the spacer
- (optional) - If you want to add some damping to your isolators, pick up some copper strips like these.
- Print your parts!
I have printed sets at 0.40 and 0.55 layers and both came out just dandy. I don’t see much value in printing these with fine layers, so I’d go as coarse as your setup handles well.
- Once the parts are printed, it’s time to glue in the first magnets. I applied glue to both 5mm sides and one of the 10mm sides, and then slid it in it’s groove from the side. There are relief channels at the corners of the magnet pockets (you can see them well in the below) that provide some capacity for excess glue, but don’t get too carried away.
Once that one magnet is in its flexure, set it off to the side while it cures. Be mindful of any metal surfaces or other magnets nearby! You don’t want a glue-coated projectile flyin around.
Repeat the above for the other two flexures, making sure to keep the distance between them while they dry.
- Once the glue for the first magnet has fully cured (exact timing depends on your specific glue and climate….for you desert dwellers, you may need to breath on that CA, it’s moisture cure :) ), you can now glue in its mate.