Project:PizzaPrinter: Difference between revisions
From London Hackspace Wiki
→Liquid dispensers
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The liquid dispensers need to be able to dispense a controlled quantity of liquid from a decent-sized feeder tank- preferably taking up liquid via a short hose. | The liquid dispensers need to be able to dispense a controlled quantity of liquid from a decent-sized feeder tank- preferably taking up liquid via a short hose. | ||
* | * Peristaltic pumps? Commonly used in bio-medical applications, only requires cleaning and sterilisation of tube internals. | ||
** Only ones I could find were ludicrously expensive, but I'm sure it could either be home-made cheaper or I'm not looking in the right places. --[[User:JamesHarrison|James Harrison]] 15:54, 2 August 2010 (UTC) | ** Only ones I could find were ludicrously expensive, but I'm sure it could either be home-made cheaper or I'm not looking in the right places. --[[User:JamesHarrison|James Harrison]] 15:54, 2 August 2010 (UTC) | ||
** They can be very expensive, but they are extremely controllable and have been calibrated etc. We could probably knock together something much cruder that'll be good enough. The point is the design is good for food (and medicine) because only the internals have to be cleaned rather than pump internals. -- [[user:ciaran.mooney|Ciarán]] | ** They can be very expensive, but they are extremely controllable and have been calibrated etc. We could probably knock together something much cruder that'll be good enough. The point is the design is good for food (and medicine) because only the internals have to be cleaned rather than pump internals. -- [[user:ciaran.mooney|Ciarán]] | ||
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*** This one looks 300x easier to make though http://www.thingiverse.com/thing:5265 --[[user:ciaran.mooney|Ciarán]] | *** This one looks 300x easier to make though http://www.thingiverse.com/thing:5265 --[[user:ciaran.mooney|Ciarán]] | ||
**Could also use a suction placement - mostly good for pick & place salami etc. but might also suck liquid up a short tube then blow it down : able to use the same mechanism for both solids and liquid dispensing. | **Could also use a suction placement - mostly good for pick & place salami etc. but might also suck liquid up a short tube then blow it down : able to use the same mechanism for both solids and liquid dispensing. | ||
** I have the motor mechanism (with gearbox and speed control) for a large peristaltic pump. It needs the roller and tube mechanism building. | |||
=== Slicing dispensers === | === Slicing dispensers === | ||
