DIY pumps

[morticaixavier]

I read a piece on another forum about a guy who was building a DIY peristaltic pump from some silicon tubeing, a couple of skateboard wheels and an axle/motor thing. basically, if I remember correctly, the skateboard wheel pressed the tube between itself and the inner wall of a cylinder so when the axle rotated it would continuously squeeze the tube as it goes around. a couple of wheels keeps the action going constantly.

well that's about as clear as mud, but perhaps some of you engineer types can make something of it.

[mtnrockhopper]

I read a piece on another forum about a guy who was building a DIY peristaltic pump from some silicon tubeing, a couple of skateboard wheels and an axle/motor thing. basically, if I remember correctly, the skateboard wheel pressed the tube between itself and the inner wall of a cylinder so when the axle rotated it would continuously squeeze the tube as it goes around. a couple of wheels keeps the action going constantly.

well that's about as clear as mud, but perhaps some of you engineer types can make something of it.

I always thought peristaltic pumps would make good brewing pumps since the liquid never leaves the tubing. Real ones are expensive though, but homemade would be great.

[jeffy]

Most of the water and oil pumps I see on cars are aluminum and need to be belt driven.  I'm not sure there would be much of an advantage to making this fit into a homebrew system.  On the other hand, a heater core or an a/c evaporator makes a nice pre chiller for water to a wort chiller.

[morticaixavier]

I read a piece on another forum about a guy who was building a DIY peristaltic pump from some silicon tubeing, a couple of skateboard wheels and an axle/motor thing. basically, if I remember correctly, the skateboard wheel pressed the tube between itself and the inner wall of a cylinder so when the axle rotated it would continuously squeeze the tube as it goes around. a couple of wheels keeps the action going constantly.

well that's about as clear as mud, but perhaps some of you engineer types can make something of it.

I always thought peristaltic pumps would make good brewing pumps since the liquid never leaves the tubing. Real ones are expensive though, but homemade would be great.

alright here is the link (sorry to cross post from another forum) http://www.homebrewtalk.com/f51/cake-pan-skateboard-wheel-bike-brakes-homemade-peristaltic-pump-279120/

[euge]

Damn that looks pretty awesome. And doable for the DIY'er!

[surfin_mikeg]

afaik, the peristaltic/tube pump thing is perfect DIY material.  The cake pan implementation - very nice.