Cake pan + skateboard wheel + bike brakes = homemade peristaltic pump??

[Stealthcruiser]

Looking back, it looks to be some type of large washer, large enough to pick up the existing holes in the brake disc, after securing it "true" to the center hole in the disc.

 

[brewinginnc]

What are the motor requirements for this pump? I was leaning toward a windshield wiper motor but are the 70 or so rpms enough?

 

[carkom]

I have a stupid question maybe someone could clear up for me. I'm confused about the metal disc that connects the mountain bike disc brakes to the axle screw. I don't think it's mentioned in the parts list on the first page, and none of the disc brakes I see online seem to include this part. What's the name of this part/where can I find it?

Stealth is right, mine is just a large washer welded to the bike brakes.

 

[lukashofmann]

two additional wheels will increase friction and decrease volume-per-turn.
but even just one would make the whole mechanism more balanced.
(…and propably much extend its lifetime.)

 

[thekraken]

So after this length of time, how are these pumps holding up? Happy with them? Would you recommend to a friend? Etc

 

[MaltedBayerl]

I was thinking about replacing the nylon rollers with wider skateboard wheels (if they exist) that have been turned on a lathe to cup and center the tubing. The guide wheels could be running along the wall to help keep the pan from deforming.

 

[Smooth_Hoperator]

Yes there are much wider longboard wheels, I was a longboarder for many years until I broke too many bones. Go for a pair of 78mm sector 9's. Just make sure the bearings are centered because most longboard wheels are offset for increased stability.

 

[DRJWLJ]

I have an "Off Shoot" project which might employ a P-Pump as a Lever "Wrench Drive ."

It would involve oscillating/alternating strokes of a Rowing, Oar-Like handle to provide Bi-Directional Clutch/Brake power for a Vehicle.

Can we Chat about your device?

I also would like to know what CAD program you use? I am on Autodesk INVENTOR 2017.

[email protected]

Shelburne,VT