3D printed tape holders

Started by Mike, June 18, 2023, 02:36:35 PM

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Mike

Passive tape holders.
30 x 4mm long ( limit of passive feeder length in RV software)
Tape retained by friction-fit bar ( left of image)
Has bumps at side and edns to help stacking.
Takes 5 dia x 3 high neodymium magnet-  press fit but suggest putting a drop of cyanoacrylate glue from the top to secure- make sure magnet is completely flush.
As-is, the fixing to the base plate is a bit slippery, so I added cavities on the underside to take some soft feet
https://www.rapidonline.com/r-tech-310000-pu-round-protective-feet-6-4-x-1-9-clear-sheet-255-31-0000
You could maybe make something similar in TPU. 

The wide ones could probably do with being longer & deeper for taller parts - I'll probably do these as & when needed, as Tinkercad was getting annoyingly slow with all variants in one design
Tinkercad link https://www.tinkercad.com/things/6ix3NnzxHmA

Zip of STLs below

tapeholders.zip

Mike

OK these first versions are a bit of a fail :
Handle on cover retainer is too high - clashes with edge of nozzle.
Magnets cause tombstoning of some parts - need to increase height, maybe add provision for washer etc. for shielding
Low height also makes them more tedious to set up.
Will re-do at some point....

 

trev

I printed some off Thingiverse years ago. They were okay

Jason

Quote from: Mike on June 19, 2023, 02:35:22 PMMagnets cause tombstoning of some parts - need to increase height, maybe add provision for washer etc. for shielding

Maybe use smaller magnets arranged as a Halbach array so they have strong field on the underside only?