I’ve been building a robot to pick and place jigsaw pieces.
I have a 12v air pump motors from sparkfun to rubber tubing to a 3d printed adapter to a nema17 with a hollow shaft to a silicone nozzle. In theory pump turns on, air suction at nozzle should lift a piece and nema17 should be able to turn said piece.
In practice suction at adapter is great, suction at silicone nozzle is crazy weak. I removed the silicone and tested on the stepper shaft, still crazy weak. I tried putting a piece of rubber between the 3d printed adapter and the motor. I am looking for silicone grease now to smear between the adapter and the motor.
Pick and place experts of VHS, what do you suggest? @rsim@TomKeddie ?
The blue round part should depress into the white bit it is attached to…
While you press it in, you should be able to slide the tubing into it, then when you release the blue bit the tube should be locked in place…
If that makes sense…
BTW… I had similar types of connectors in a solder dispenser. They ran the shortest lengths of 6 mm tubing so it was a mess inside. I replaced all that tubing with nicely run 1/4" tubing (all I could find locally). However I found most of the connections leaked. I have to go back to the 6 mm tubing it came with.