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Thanks! More than I bargained for, but thanks!

juicedcoupe wrote: ↑Tue May 07, 2024 4:29 pm

Makers wrote: ↑Tue May 07, 2024 3:58 pm Peak detection? Is that some sort of auto shutoff?

Yes. It protects the battery.

Got it. Thanks.

Peak detection? Is that some sort of auto shutoff?

I have a 40 year old Astro Flight 4005 B charger. Can I use it to charge NiMH batteries. It can supply about 5 amps to a 7.2v NiCad pack.

Thanks, @Coelacanth . Do the speed controllers you're referring to incorporate variable gearing? I think the only way you can reduce torque (without also reducing speed) is by changing the gearing. Let me know! No, not gearing, just "computer magic". :lol: The ESC can be programmed to del...

Dadio wrote: ↑Mon May 06, 2024 12:22 pm
The punch setting on the speed control is more of a soft start so if you nail the throttle it feeds it in more gradually stopping shock loading the transmission and reducing wheel spin .

Got it. Thanks.

Thanks, @Coelacanth . Do the speed controllers you're referring to incorporate variable gearing? I think the only way you can reduce torque (without also reducing speed) is by changing the gearing. Let me know!

Makes sense. Thanks.

radioactivity wrote: ↑Sun May 05, 2024 12:55 pm The motor's heat questions can be partially addressed by gearing.
I inexpensively modified 3 items on my Rocky.

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Chuck

Nice! Thanks! And thanks for the pics!

The other option is to fit a modern brushless motor and speed controller , they run much cooler and typically with modern Lipo batteries you can drive them for over 30 min but you have to remember to be kind the the old school transmition as well , modern brushless motors can be astonishingly power...

If you get a battery with a similar mah rating to what NiCd batteries had (1200 to 1500 mah), then there should be less risk of overheating. They would also be lighter weight than the old NiCd pack which is always good. But same run time, not longer. Traxxas has a cooling fan integrated into their ...

Thanks! I figured as much, but thought I'd ask just to be sure. Are newer motors of the same form factor built to handle longer running times?

I have a question regarding replacing NiCad battery packs with NiMH on my 80s-vintage Kyosho Rocky. I assume the speed controller and motor were spec'd at the time to be able to dissipate the heat over the runtime of a NiCad battery pack. Since it appears that modern day NiMH can offer runtimes at l...

If you decide to put money into it, Kyosho recently started a retro styled Le Mans brushless motor series. Not cheap, but pretty sharp. I've been putting them in all my retro Kyosho builds on principle. Thanks, though I'm not planning to upgrade this one. At this point I'm just trying thin out some...

Thanks for all this! To be sure, I'm not hoping to retire should I find a buyer! Just curious to learn about it. This one has been sitting in a box in the basement for 40 years. I enjoyed building it then probably only ran it outside a half dozen times at most, including last weekend to see if it s...