Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Pellet Dispenser for Operant Chambers

by RogerEsc, published

Pellet Dispenser for Operant Chambers by RogerEsc Jan 15, 2016


Design Tools

123D Design

Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag

Thing Statistics

619Views 211Downloads Found in Learning


45 mg Pellet Dispenser for Operant Conditioning Chambers.

First look at the Operant Conditioning Chamber: http://www.thingiverse.com/thing:1226076

A layer height of 0.2 mm with 20% fill density is recommended. Only the Ring.stl requires support material. I use lines to facilitate removal.

It is recommended to print the Pellet_Disk.stl and the Disk_Support on a heated bed. Because the pellet disk rotates on top of the support, a smooth surface on these parts facilitates movement.

You will need also the following materials:

1 - Nema 17 stepper motor Model 17HS4401.

1 - Pololu Universal Aluminum Mounting Hub for 5 mm shaft # 4-40 holes

4 – M3 or 4-40 Screws. These screws are used to attach the rotating disk to the holes in the mounting hub.

1 - 4988 Motor controller with 1 - 47 uF or 100 uF capacitor.

E6000 glue. The two sections of the stand (support.stl) are glued together. The ring must be glued to the disk support. Also the knob must be glued to the lid (cover.stl).

Print Settings

Printer Brand:

Robo 3D



Doesn't Matter




0.2 mm



More from Learning

view more

All Apps

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App