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Re: Coolbank/Tongde M5A1 Stuart /Crusader mk III
Posted: Sat Jul 13, 2024 12:48 am
by Tiger6
Deutsche Industrienorm is the accepted modern short-form version of that mouthfull these days (24 years and counting, working for an Austrian Engineering Consultancy here

)
Bolts are a minefield. Din933 only specifies geometry and general material grade. Surface coating consistancy, cleanlines of the interfacing parts and torque control all have a massive influence on whether you over or under tighten a bolted joint.
So like SoaG said, don't be tempted to visit the local DIY store for fasteners to fix your car, they won't work the same as the original bolts...
Re: Coolbank/Tongde M5A1 Stuart /Crusader mk III
Posted: Sat Jul 13, 2024 7:03 pm
by tankme
Tiger6 wrote: ↑Fri Jul 12, 2024 10:08 pm
DIN 933 is an older German (
Deutsche
Industrie
norm) standard for fully theaded hex head bolts, nothing magical about it.
Don't really care if it the old standard or not. My point was it can be hard to search for hex head bolts. The issue is when you search on hex bolts, you get countersunk, socket head, and cap head hex fasteners. Using the search term DIN933 has yielded direct search results to external hex bolts. All of the other facts are interesting, but not helpful in finding the right fasteners. Here in the US, metric is harder to find as we have both standard and metric in stores. As far as specific fasteners go, most US stores carry the same middle of road common ones. It's the smaller or longer uncommon ones that are hard to find. Therefore, if those in the US search on DIN933, you will most likely find what you are looking for.
Re: Coolbank/Tongde M5A1 Stuart /Crusader mk III
Posted: Sun Jul 14, 2024 1:50 pm
by Rob1970
According to the manual from Coolbank, one of the switches on the remote is for a winch (in and out). Has anybody figured out what port that is on the receiver/board? I have a cunning plan with a small motor with lots of reduction and a crew member...
Re: Coolbank/Tongde M5A1 Stuart /Crusader mk III
Posted: Sun Jul 14, 2024 5:44 pm
by jhamm
Some Upgrades from ABER:

- M5A1-14072024-001.jpg (353.87 KiB) Viewed 1156 times

- M5A1-14072024-004.jpg (297.92 KiB) Viewed 1156 times
Re: Coolbank/Tongde M5A1 Stuart /Crusader mk III
Posted: Tue Jul 16, 2024 5:23 pm
by Winterhammermodels
Hello everybody,
Does someone know if you can buy the Control Board and transmitter seperatly?
I need some new RC tank controll for my small tankettes and Panzer 1 conversions.
Re: Coolbank/Tongde M5A1 Stuart /Crusader mk III
Posted: Tue Jul 16, 2024 5:38 pm
by Kaczor
Re: Coolbank/Tongde M5A1 Stuart /Crusader mk III
Posted: Tue Jul 16, 2024 5:59 pm
by Rob1970
Winterhammermodels wrote: ↑Tue Jul 16, 2024 5:23 pm
Hello everybody,
Does someone know if you can buy the Control Board and transmitter seperatly?
I need some new RC tank controll for my small tankettes and Panzer 1 conversions.
Yes;
https://www.banggood.com/nl/COOLBANK-M5 ... 15993.html. All the bits are on Banggood
Re: Coolbank/Tongde M5A1 Stuart /Crusader mk III
Posted: Tue Jul 16, 2024 6:19 pm
by Kaczor
Great, spare tracks!
Re: Coolbank/Tongde M5A1 Stuart /Crusader mk III
Posted: Tue Jul 16, 2024 8:39 pm
by Rad_Schuhart
Winterhammermodels wrote: ↑Tue Jul 16, 2024 5:23 pm
Hello everybody,
Does someone know if you can buy the Control Board and transmitter seperatly?
I need some new RC tank controll for my small tankettes and Panzer 1 conversions.
A friend of mine is willing to sell his electronics and radio
Re: Coolbank/Tongde M5A1 Stuart /Crusader mk III
Posted: Tue Aug 06, 2024 3:47 pm
by Herr Dr. Professor

OK: I give up!

I prefer to know where I'm headed, rather than just push-pull-tug-bash away. There are two tiny screws at the rear of the hull. But how does one get the Coolbank Stuart open? (Uh-oh: please, no, not screws buried by the tank tracks.

)
(I did not want to start a new thread for just this simple question.)