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Peristaltic Pump for Food

Pumps food through feeding tube for people who can't eat solid food.

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Description

Pumps food through feeding tube for people who can't eat solid food. Designed to be very durable. More info in the 2 links below (including links to the 3D model, fully editable, and a circuit diagram for the electronics)

https://cad.onshape.com/documents/21d93d7fa07f4e049c1e2344/w/f15984352f124ccf842135a6

http://eleccelerator.com/3d-printed-peristaltic-pump/

Materials and methods

DC brushed motor, with precision spur gear gearbox, 6V-12V operating voltage, 6mm D shaft, part 638222 on Servo City

Actobotics brand 0.770″ set screw hub for 6mm shafts, part 545576 on Servo City

very flexible very soft tubing, 5mm OD, 3mm ID, FDA approved

barbed couplings for the tubing mentioned above, these hold the tube in place, FDA approved, 1/8 inch diameter is acceptable as well

6x steel ball bearing, double shielded, 1/4 inch ID, 1/2 inch OD, used as the rollers

binding post, 1/4″ barrel diameter, #10 screw, 5/8 to 3/4 inch length, used as axles for the bearings

4x #6-32 machine screw 1 inch long, holds the rotor to the hub

6x M3 machine screw 0.5mm pitch 12mm long, holds the motor to the pump housing

4x M4 nylon locking nut, to hold the pump housing together

4x M4 machine screw 50mm long, to hold the pump housing together

1x M4 screw with hex head cap 20mm long fully threaded, optional, used as an axle on the rotor, if you wanted to add a dust shield with another bearing

1x M4 nylon locking nut, optional, to hold hex head cap screw mentioned above

1x steel ball bearing, double shielded, flanged, with extended inner ring, 5/32 inch ID, 5/16 inch OD, optional, if you wanted to add a dust shield with another bearing

1/8 inch thick clear polycarbonate sheet, optional, cut and drill into a dust shield

optionally use Loctite on the screws without nylon locking nuts

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    Comments

    7341541f16e0dc878f8f8c7724b22972?default=blank&size=40dago126 added this to the Homebrewing collection ago
    077e146d5f7d17eb409d591e11311bd6?default=blank&size=40Daniele Ribolla added this to the shotty's stuff collection ago
    297087dbc1c69530b116a9740431cbc2?default=blank&size=40Hugo Luquis added this to the Tools collection ago
    6e3f0a702d073ca7e64c78089daef2c9?default=blank&size=40srakoon added this to the Food collection ago
    2a75cab135f4fa70ce15076195549488?default=blank&size=40albrov added this to the hobby collection ago
    88982d92333da44802d130dc5e05eec9?default=blank&size=40Maboo added this to the Paste and liquids extrusion collection ago
    88982d92333da44802d130dc5e05eec9?default=blank&size=40Maboo added this to the Interesting objects collection ago
    88982d92333da44802d130dc5e05eec9?default=blank&size=40Maboo added this to the Useful everyday things collection ago
    4265f841ad761870eb028ad364c3e11b?default=blank&size=40frank26080115 published this design ago