Dual-current Driving System for Tongde 1/16 M1A2 M2A2 M60A3 M60A1 M60W RC Tanks

[keilau]

Any first hand experience with this?
https://www.ebay.com/itm/226061869214?itmmeta=01HT8KKX3GC0M2Y8C3YWA0E0EF&ha sh=item34a256609e:g:QbwAAOSwxttmAQzO&itmprp=enc%3A AQAJAAAA4Gi5DlY--twLwpzeJ%2F46D0Z%2FSXVQDKQverzsN3XGiapS5ST8VkWQfUy 75IyQJdF1%2BYU8NmSmX7vReOnZckUS51AidlgNX3YydMY80yR c6N5aShn6VDOEGXS6BmU9ey4U63T72Ao8%2FtWOBk0hARjvAdU MEXv7oONea%2F3i7qiTxQ%2B0bMX9IV0xzsQoZq1CvWPFnGxRC mdvvBuVBExpPdHATYJ%2BtXMKUl0H2ph9jGjQrMqhqtz4zuLbd cgt2zZ9nIBWPLgfqPlKtGe8E%2BmCrr9BVC4vrmwyCrDtbOUwh D6FnEa0%7Ctkp%3ABk9SR-rRz5PSYw

[cmdrcody]

You could buy another tank for what they are asking for that set of motors and steel gears!

[keilau]

You could buy another tank for what they are asking for that set of motors and steel gears!

Yes, steel gear cross current gearbox is expensive.

https://www.dklmrc.com/product/full-metal-pdsgb-gearbox-for-1-16-rc-tanks

The plastic version cross current gearbox is much cheaper.
https://www.ebay.com/itm/226016429829

[Rubicon99]

Any first hand experience with this?
https://www.ebay.com/itm/226061869214?itmmeta=01HT8KKX3GC0M2Y8C3YWA0E0EF&ha sh=item34a256609e:g:QbwAAOSwxttmAQzO&itmprp=enc%3A AQAJAAAA4Gi5DlY--twLwpzeJ%2F46D0Z%2FSXVQDKQverzsN3XGiapS5ST8VkWQfUy 75IyQJdF1%2BYU8NmSmX7vReOnZckUS51AidlgNX3YydMY80yR c6N5aShn6VDOEGXS6BmU9ey4U63T72Ao8%2FtWOBk0hARjvAdU MEXv7oONea%2F3i7qiTxQ%2B0bMX9IV0xzsQoZq1CvWPFnGxRC mdvvBuVBExpPdHATYJ%2BtXMKUl0H2ph9jGjQrMqhqtz4zuLbd cgt2zZ9nIBWPLgfqPlKtGe8E%2BmCrr9BVC4vrmwyCrDtbOUwh D6FnEa0%7Ctkp%3ABk9SR-rRz5PSYw

The problem if the TD model only has the stock length drive shafts and not the multiple lengths sets shown. Which is ok if you are intending to stay with the TD sprockets and plastic or metal tracks. It would need 63mm-65mm shafts to be able to use HL Abrams sprockets and run other aftermarket higher quality tracks.

The one big benefit the TD unit might have is the correct mounting plate? The product photos do not show the mounting plate well. The others available on the market there is a little work needed to make them fit the M60.

Below is a cheaper alternative to run HL sprockets and compatible tracks. I would stay away from the cheapest ones, "plastic" versions of the dual current drives.

[keilau]

The problem if the TD model only has the stock length drive shafts and not the multiple lengths sets shown. Which is ok if you are intending to stay with the TD sprockets and plastic or metal tracks. It would need 63mm-65mm shafts to be able to use HL Abrams sprockets and run other aftermarket higher quality tracks.

The one big benefit the TD unit might have is the correct mounting plate? The product photos do not show the mounting plate well. The others available on the market there is a little work needed to make them fit the M60.

Below is a cheaper alternative to run HL sprockets and compatible tracks. I would stay away from the cheapest ones, "plastic" versions of the dual current drives.

What is the meaning of L65MM vs. H65MM? Will this one work with the TD M60?
https://www.ebay.com/itm/23469591658....c101506.m1851

[Rubicon99]

What is the meaning of L65MM vs. H65MM? Will this one work with the TD M60?
https://www.ebay.com/itm/234695916586?_trkparms=amclksrc%3DITM%26aid%3D1110 025%26algo%3DHOMESPLICE.COMPOSITELISTINGS%26ao%3D1 %26asc%3D262497%26meid%3Deb7f05d36efd46769153524e8 50c1c7b%26pid%3D101506%26rk%3D9%26rkt%3D25%26sd%3D 226016429829%26itm%3D234695916586%26pmt%3D1%26noa% 3D1%26pg%3D4247815%26algv%3DAlgoIndex5SimRanker&_t rksid=p4247815.c101506.m1851

I suspect the L is for low speed gearing and H is for high speed gearing?

The shafts length needs to be between 63mm and 65mm to be able to aline the HL Abrams sprockets accordingly on the M60.

The mounting plate takes a little thought to install, but is rather forgiving with unconventional mounting methods. If you don't overthink the install method it is actually very easy to achieve a solid installation.

[tank_me]

Actually the L is for Low motor position and the H is for high motor position of the main 500 series drive motor. Not sure why they needed two positions. If you look at the pic above, it is at a sharp angle up. The other one which is the low version looks like this:

[Rubicon99]

Actually the L is for Low motor position and the H is for high motor position of the main 500 series drive motor. Not sure why they needed two positions. If you look at the pic above, it is at a sharp angle up. The other one which is the low version looks like this:

That is interesting to learn. But does the motor placement also corresponds with the gear ratio? Because it does not change the overall size of the unit so I agree why the use of the lower motor position is interesting. I have a few DC units all "high speed" versions with the 540 motor on top. No one local has the lower motor arrangement, but then they also all have the "high speed" gear ratios too.

The DC units are pretty powerful and have excellent low speed as well as high speed performance. Can't see a reason to run the lower gear ratio in anything Cold War era or newer.

[tank_me]

That is interesting to learn. But does the motor placement also corresponds with the gear ratio? Because it does not change the overall size of the unit so I agree why the use of the lower motor position is interesting. I have a few DC units all "high speed" versions with the 540 motor on top. No one local has the lower motor arrangement, but then they also all have the "high speed" gear ratios too.

The DC units are pretty powerful and have excellent low speed as well as high speed performance. Can't see a reason to run the lower gear ratio in anything Cold War era or newer.

As far as I can see, the high or low doesn't affect the gear ratio as it's shown on the Toucan site on both the High and Low versions as the same ratio like this:



What's funny is a few months ago I was looking for the slower 1/48 gear ratio and I can't find them anywhere except like Forgebear. Link to the site: https://www.toucanhobby.com/products...2c3c69b3&_ss=r

[keilau]

As far as I can see, the high or low doesn't affect the gear ratio as it's shown on the Toucan site on both the High and Low versions as the same ratio like this:

What's funny is a few months ago I was looking for the slower 1/48 gear ratio and I can't find them anywhere except like Forgebear. Link to the site: https://www.toucanhobby.com/products...2c3c69b3&_ss=r

The all metal (metal gear, metal case) dual current gearbox is priced at more than another tank as the link above. The metal gear, plastic case version is about half the price. ($234 vs. $133) Any reason not to go for it?
https://www.toucanhobby.com/products/hl-dgb-sl-p2-l65-dzn1?pr_prod_strat=e5_desc&pr_rec_id=2c6e8ab11&pr_ rec_pid=8009992405242&pr_ref_pid=7634540069114&pr_ seq=uniform

[Rubicon99]

The all metal (metal gear, metal case) dual current gearbox is priced at more than another tank as the link above. The metal gear, plastic case version is about half the price. ($234 vs. $133) Any reason not to go for it?
https://www.toucanhobby.com/products/hl-dgb-sl-p2-l65-dzn1?pr_prod_strat=e5_desc&pr_rec_id=2c6e8ab11&pr_ rec_pid=8009992405242&pr_ref_pid=7634540069114&pr_ seq=uniform

All of mine are metal gears with plastic cases. So are all the others people in the local clubs. Never seen any issues with them. Its the plastic gear version that is questionable the case doesn't seem to matter.

[keilau]

All of mine are metal gears with plastic cases. So are all the others people in the local clubs. Never seen any issues with them. Its the plastic gear version that is questionable the case doesn't seem to matter.

Good to know. This $133 is my plan B for the Tamiya track project. I am still working on the Tongde metal gearbox to get a longer motor drive shaft.

[RichJohnson]

As far as gear ratios go, the HL standard gear ratio is 33:1 while the taigen gear ratio is 39:1 tamiya is 69:1
I have found I prefer the taigen gear ratio to use in my builds

[keilau]

As far as gear ratios go, the HL standard gear ratio is 33:1 while the taigen gear ratio is 39:1 tamiya is 69:1
I have found I prefer the taigen gear ratio to use in my builds

I have not come across a Heng Long gearbox that is not 39:1. I use 5 Heng Xin gearbox and one Taigen/Torro series 2 gearbox. They are all 39:1 ratio. The Tongde metal gearbox on the Patton M60A1 is 39:1 also.

[tank_me]

The Heng Long metal enclosed gearboxes come in a 1/56 ratio. I have them installed in my KV-1 and SU-152. https://www.aliexpress.us/item/32568...Cquery_from%3A

[keilau]

The Heng Long metal enclosed gearboxes come in a 1/56 ratio. I have them installed in my KV-1 and SU-152. https://www.aliexpress.us/item/32568...Cquery_from%3A

That makes sense. The Soviet Union KV-1 is an under powered heavy tank with a 22mph top speed.

[tank_me]

Even with the 1/56 gear ratio, they aren't super slow. At full throttle, they still move along at a pretty good clip.

[keilau]

Even with the 1/56 gear ratio, they aren't super slow. At full throttle, they still move along at a pretty good clip.

With a 56:1 gearbox and 380 motor, I estimate the KV-1 will have a 20-22 mph scale speed. Typical WW2 tank have 20mph highway speed and runs less than 10mph on battle ground. What motor does your CNC gearbox come with?

[tank_me]

I believe it's a 380. It's not long enough to be a 390 and not short enough to be a 370.