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Food hopper V2 3d printed

Not a Photo

White Processed Versatile Plastic
Food hopper V2 3d printed
Food hopper V2 3d printed

Not a Photo

Food hopper V2

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3D printed in white nylon plastic polished to reveal a smooth matte finish.
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Product Description
This is for use in behavioral experiments with the Med Associates food dispenser. No markup has been added to the price (i.e., no money comes to me). Design is open-source. Contact me for the files if you'd like to modify or print your own. Once you recieve the item, you'll need to do the following:
  • Ream the large hole in the rear base with a 1/4" x 20 tap and use a 1/4" x 20 plastic thumb screw or bolt to secure it to the cage bars. The tap I use is Grainger #1TRP7. The bolt I used is Grainger #2KE26 (discontinued, but they will suggest a replacement part). Note that the bolt is too long for the hole, so you'll have to cut down the bolt quite a bit.
  • Ream the two small holes on the sides near the front with a 4-40 tap and use 4-40 set screws. These set screws can be used to hold the IR sensor and emitter in place. I don't have a recommendation for the tap since I already had one, but you should be able to find it on Grainger. As for the set screws, I find Grainger #2GY94 work well (be sure you have a flathead small enough to use with these screws). 
  • Build the IR emitter and sensor. You can use your own but the size of the slots for the sensors are known to work with the TT Electronics/Optek Technology OPS 693 IR emitter/sensor pair (Digi-Key 365-1876-ND). If you want to use your own sensors, be sure that they are the same size as the OPS 693 pair (or smaller). Note that if you are coming from a lab that uses the electronics designed by Peter Lau at NYU, you'll need a different electronics circuit to work with these sensors. I like soldering BNC breakout leads to the IR emitter/sensor pair (Digi-Key 501-1030-ND).
  • Finally, decide how you'd like to mount the hopper to the bars in the cage. You can order a different 3D printed part. Right now I can't make this available to the public because Shapeways requires that I print a copy first (I have my own from a previous vendor). Contact me for the STL file.
  • You'll also need a short piece of plastic tubing to connect this to the food hopper. I don't have the exact part number as I obtained the tubing from another lab. However, the inner diameter appears to be 0.5" with a wall thickness of approx. 0.075". If you have a part number, please contact me so I can update with this information.
What's in the box:
Revised Food Hopper V2 Solid
4.14 x 8.91 x 7.67 cm
Switch to inches
1.63 x 3.51 x 3.02 inches
Switch to cm
Success Rate:
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What's this?
Mature audiences only.
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