Isolating Printer Feet (D-Bot / V-Slot / Aluminium Extrusion) using Springs by beepbeep

Last crawled date: 3 years ago

I never knew what vibration was until I completed my D-Bot CoreXY machine. The structural integrity of my domicile was threatened when I initially ran it sat on the floor, so I designed some dampening feet that would be low cost to produce.
Note: I found these feet caused some issues with high speed/acceleration/jerk settings and am redesigning to include 7 springs each currently.
This is now my final complete design which I have printed, tested and have them installed and working well on my printer. I have changed the springs I am using (link below has been updated). These ones are slightly smaller and a bit firmer - they work great and I would be confident putting upto 10kg load on per foot, maybe more.
Each foot consists of:
1 x Printed 'Spring Feet Top.stl'
1 x Printed 'Spring Feet Bottom.stl'
4 x Springs (http://www.aliexpress.com/item/3D-printer-accessories-Ultimaker-2-UM2-spring-fine-print-platform-edging-1-2-15mm-for-UM2/32606455778.html?spm=2114.13010608.0.108.bIz7v1) - buy 1 pack and you can make 7.5 feet)
1 x 3M 'Bumpon' adhesive rubber foot circular/flat 20mm x 2mm (or cut your own from cork, etc.)
Assembly should be pretty self explanatory from the renders...

Prepare the bottom part by placing 4x springs in the holes. Springs should fit relatively snugly on their own and the assembled foot will easily hold together without additional adhesive.


Put M5 cap head bolt into the hole in the top of the top part (you may need to drill out the hole depending how accurately your print turned out - but with a bit of force you should get the thread through and head in the recess without this). If printing ABS scale up to allow for shrinkage.


Line up springs with top piece and push everything together.


Attach to bottom of printer/equipment using an allen key through the hole in the bottom of the bottom part.


Place 3M bumpon foot into recess on the very bottom.

Done