Hamilton Beach 6-Speed Hand Mixer Replacement Gear

I am just linking to this model, so that it is on printables. If the original uploader wants me to take it down, just let me know.

Added v2 7/12/2023:
I changed the thickness to have less slop side to side.

Added v3 7/13/2023:
Changed the height of the inner circles, so it will hopefully have less play up and down.

Just noticed... stl is upside down. Print with the slotted end up

So, I got tired of buying new hand mixers (Hamilton Beach 6-Speed Hand Mixer) due to the gears wearing out. I contacted Hamilton and they said they don't sell the gears. After replacing two units (each lasting around 3-4 years) due to same gear failure as seen in attached photos, and with my new 3D Ender 3 printer, I decided to make my own gear replacements. I used Tinkercad.com to design them. ( https://www.tinkercad.com/things/2OcipHNOb3D)

They work great. I'm not sure yet of their life as I just installed them. Will let you know. To test later this week with making Christmas cookie dough.

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UPDATE 1 Jan 2020 - Happy New Year
The PLA gears only lasted for one batch of bread rolls. Same failure mode as the nylon gears. Wish it could print Nylon. I don't know. Maybe 3D print a mold and then put epoxy inside? or Liquid Nails? with a removable 3D printed shaft.

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UPDATE 7 Feb 2020
I printed a set with ABS and it seems to work a lot better. Using these I have made banana bars, frosting, and pancake batter. Granted not high torque mixes, but it hasn't failed yet. :)

Print Settings

Printer brand:

Creality

Printer:

Ender 3

Rafts:

No

Supports:

Yes

Resolution:

0.2

Infill:

40

Filament brand:

3D Solutech

Filament color:

Blue Translucent

Filament material:

PLA

Notes:

I used the Tree support in Cura, works great and easy to pull off.

Cura set to 3 walled
40% infill - Triangles

The top stem (where beater shaft is inserted) was 100% filled to be stronger where the PLA will see torque of the beater shaft. (Did this using the "per model settings" in Cura.