Scratch building a planetary gear box

This board contains easy-to-do fixes on your new tanks from stock. This will hopefully help beginners to get the accuracy they want from their models.

Postby walter » Sun Apr 05, 2020 2:09 am

Drive shaft and drive cage.
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Postby walter » Sun Apr 05, 2020 2:10 am

Another view.
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Postby walter » Sun Apr 05, 2020 2:12 am

Finished motor end.
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Postby walter » Sun Apr 05, 2020 2:15 am

Ring gear segment with gear cage.
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Postby walter » Sun Apr 05, 2020 2:16 am

Other side
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Postby walter » Sun Apr 05, 2020 2:20 am

Finished gear box with 3 gear cages 5:1,4:1,4:1
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Postby walter » Sun Apr 05, 2020 2:21 am

Other side
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Postby walter » Sun Apr 05, 2020 2:25 am

Complete gear box in its housing. This photo shows gear box with two gear cages.
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Postby walter » Sun Apr 05, 2020 2:27 am

Another view.
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Postby walter » Sun Apr 05, 2020 2:29 am

Another view.
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Postby walter » Sun Apr 05, 2020 2:36 am

In this photo are three different gear boxes.
Top: Planetary gear box
Center: Geared motor 60:1
Bottom: Geared motor 50:1
All interchangeable with my standard housing.
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Postby walter » Sun Apr 05, 2020 2:37 am

Another view.
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Postby walter » Sun Apr 05, 2020 2:37 am

Another view.
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Postby walter » Sun Apr 05, 2020 2:40 am

The planetary gear box at the bottom is the shortest of them all at 75mm long.
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Postby MITCH » Sun Apr 05, 2020 10:13 pm

It's an impressive job, well done !! I never tested the planetary gears, but it sounds great. :thumbup: :thumbup: :thumbup:
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Postby Estnische » Thu Apr 09, 2020 11:50 pm

Wonderful work Walter. Such skills and machinery - I am jealous.

Stay safe in these strange times.
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Postby X82d Pathfinder » Fri Apr 10, 2020 7:31 am

There is such an array of talent here. We all have a skill set we can share with others. My love of hobbies started with plastic kits at seven years old. I have been since I was seven. 52 years. Plastic kits went building dioramas and kits for the museum to working on real aircraft. I took at hiatus post an injury and a surgery that allowed a return to the flight deck and to flying for the largest Airline in the world.
I wish we could get the younger generation into doing something with their hands and mind instead of playing video games in mom's basement until they were 30.

Beautiful job on the gearbox. I appreciate you posting engineering of this nature. Kudos!
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Postby Will01Capri » Wed Sep 16, 2020 12:46 pm

Bloody good show, that is really great. Very nicely done and thankyou for taking the time to split it down for us to look see
I use alot of gear reduction motors with planetary and other style gearboxes, but its great to see someone taking the time to make their own.
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Postby midlife306 » Wed Sep 16, 2020 5:49 pm

Walter, I’m sorry, after all those posts, the only thing I can say is blimey!!


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