GT2 Main Shaft Pulley for MKII 5 Watt 3D printable Wind Turbine

GT2 Pulley 75 Teeth

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Attribution

http://www.thingiverse.com/thing:16627 and https://www.youmagine.com/designs/mkii-5-watt-3d-printable-wind-turbine

Description

This is a replacement for the gears in the MKII 5 Watt 3D printable Wind Turbine.
It uses a 80mm GT2 (2mm) timing belt, an aluminium pulley with 28 teeth for the stepper motor shaft and an printed pulley with 75 teeth for the main shaft.
The ratio is 75:28 = 2.68.

Update 18-02-2017:
Added a 74 teeth variant. with a ratio of 74:28 = 2.64. This one can be printed without a raft. The 75 teeth variant was little bit to tight with resulted in to much friction.

The main reason for this replacement is that it reduces the gear noise.

I printed this in ABS with the following settings:
- Highest Quality
- Layer Height: 0.06 mm
- Print speed: 45 mm/s
- Outer wall speed: 20 mm/s
- Travel speed: 120 mm/s
- Infill: 75%
- Build Plate Adhesion Type: Raft (so you don't get an elephant feet on the teeth)

The gear is based on this OpenScad design (http://www.thingiverse.com/thing:16627). I have included the scad file with the parameters I used.

Materials and methods

Other non-printed parts:

GT2 Timing Belt 6mm wide 2mm pitch, 180mm, 90 teeth
http://www.ebay.com/itm/252551495403

GT2 Aluminum Timing Pulleys 28 Tooth 5mm Bore
http://www.ebay.com/itm/141217588592

M3 Grub Screw
http://www.ebay.com/itm/272401861279
(You only need 3 Grub Screws)

Documents

Issues

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Comments

Mini youtube channel logo 2Daniel Davis added this to the Wind Turbine Contributions collection ago
Dfe5d99e6e5229932c9d918febcd48e0?default=blank&size=40Chema added this to the Para imprimir collection ago
Mini img 0338Sepio published this design ago