Many times we would like the kits for electronica projects to be more and more specific.
Looking among discarded printers, in their mechanisms you can find very good wheels, rubber and plastic that still do not know q material. But ideal for certain uses.

I want to show you how I made these spare parts for printers as wheels for my electronics projects, in less than 60 minutes. This particular wheel can be found in a large number of old printers and photocopiers, usually come attached to a bar of 4 or 5 wheels per bar.

Step 1: Step 1: Materials

Hardware
Common reduction motor.

Tool, calibrator or "Bernier".

Printer wheel, found at an e-waste collection site.

Software

123D for 3D Design by Autodesk

Cura 2.4.0

Thread Tools:

Prusa i3 3D Printer

Step 2: Step 2: Measure. 15 Minutes.

Measure the chosen pieces.

Wheel.

- Measure the inside of the holes.

- Measure the exterior of the holes.

- Measure Width.

Motor.

- Measure the axis.

- Measure the sectioned height of the shaft.

Step 3: Step 3: Designing. 25 Minutes

- Using the 123D design program.
If you have taken the measurements in millimeters. Then change the Units of 123D in millimeters.

- Save file with extension * .STL

Step 4: Step 4: Print. 10 Minutes.

- Using the CURA program for 3D printing.

- Open the file with STL extension.

- Because it is a very small piece you must increase the density of the final object to 75%, this already depends on how you are doing to your print3D very small objects.