Building a Bevel gear 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.
walter
Sergeant
Posts: 567
Joined: Fri Mar 10, 2017 11:53 am
Location: Geelong Australia

Re: Building a Bevel gear Gear Box

Post by walter »

The empty lower hull
Attachments
IMG_20180814_100324 (Small).jpg
IMG_20180814_100324 (Small).jpg (81.51 KiB) Viewed 4128 times
walter
Sergeant
Posts: 567
Joined: Fri Mar 10, 2017 11:53 am
Location: Geelong Australia

Re: Building a Bevel gear Gear Box

Post by walter »

The finished gear boxes
Attachments
IMG_20180814_100229 (Small).jpg
IMG_20180814_100229 (Small).jpg (84.86 KiB) Viewed 4127 times
walter
Sergeant
Posts: 567
Joined: Fri Mar 10, 2017 11:53 am
Location: Geelong Australia

Re: Building a Bevel gear Gear Box

Post by walter »

Gear boxes installed
Attachments
IMG_20180814_104043 (Small).jpg
IMG_20180814_104043 (Small).jpg (99.29 KiB) Viewed 4126 times
walter
Sergeant
Posts: 567
Joined: Fri Mar 10, 2017 11:53 am
Location: Geelong Australia

Re: Building a Bevel gear Gear Box

Post by walter »

Another view
Attachments
IMG_20180814_104144 (Small).jpg
IMG_20180814_104144 (Small).jpg (99.75 KiB) Viewed 4125 times
User avatar
Son of a gun-ner
Lieutenant-Colonel
Posts: 6865
Joined: Sun May 07, 2017 8:49 pm
Location: Surrey UK

Re: Building a Bevel gear Gear Box

Post by Son of a gun-ner »

Bravo Walter :clap: :clap:

Mick.
Mick - The grit in the underpants of life!
And always happy to spare the bytes

TOTM needs YOU :thumbup: support YOUR TOTM competition, I'm doing my part, are YOU?
User avatar
Kostyanchik
Private
Posts: 63
Joined: Wed Dec 13, 2017 3:37 pm
Location: Russia, Moscow

Re: Building a Bevel gear Gear Box

Post by Kostyanchik »

Excellent performance, Walter! Your results are amazing.
Based on personal experience and preference in speed of movement of a tank model, I think that the gear ratio 60:1 and Johnson 395 engine with 10 anchors (12 volts / 11200 revolutions per minute) will allow you to achieve optimum speed and maneuverability of the tank.
If you decide to use motors at a voltage of 7.2 V, it is better to use a gearbox with a gear ratio of 30: 1.
using translator
walter
Sergeant
Posts: 567
Joined: Fri Mar 10, 2017 11:53 am
Location: Geelong Australia

Re: Building a Bevel gear Gear Box

Post by walter »

Hi Kostyanchik,
I have two Johnson 395 motors on order. When they arrive that will open a new perspective on experimentation.
You mite be right those new motors with a gear ratio 60:1 could perform a lot better then the motors I used.
I am not sure what the max voltage on my TK-22 is, but I have a feeling it could be around 7,2 v
With the motors I used and my independent power supply I use for testing 7.2V and 30:1 gear ratio are most definitely to slow.
Regards Walter
Post Reply

Return to “Things to fix on your new tank”