introducing new 1/8 120a car esc - Page 3 - RC-Monster Forums

florianz · 09.04.2009, 10:11 AM

the one esc sold by "Graupner", the Genius 120r, is sold with a card, and therefore costs a bit more then the one sold by "Jamara", the Flash 3000, which is sold w/out card. in some shops you can get the flash for about usd 120,- . the single programming of card of jamara is not available yet.

lutach · 09.04.2009, 10:30 AM

Quote:

Originally Posted by florianz

the one esc sold by "Graupner", the Genius 120r, is sold with a card, and therefore costs a bit more then the one sold by "Jamara", the Flash 3000, which is sold w/out card. in some shops you can get the flash for about usd 120,- . the single programming of card of jamara is not available yet.

Those guys are just making a profit on the cards. They come with it from the factory. I don't blame them though. Now if they had the option for PC programming then they could charge it as it's an option from many places that does it. Jamara doesn't have the manual online? Send Jamara or Graupner an e-mail asking for the manual.

florianz · 09.04.2009, 10:58 AM

yeah, U're right, they're making profit with the cards. at least the jamara, which is w/out card, is cheaper. I've contacted graupner via their forum on www.gm-racing.de, which is usually the best way. In an other forum someone said that they are going to put the manual on the (Jamara?) web-page.

but when... it took me already 2 months to get the esc. the first one (version 1) just didn't work on 5 or 6s. summer passed by... I was so pissed-off.

florianz · 05:11 AM

hi,

short update:

the last runs have been good so far. The esc stays cool after 3 batteries, I think highest temps were around 40 deg celsius/104f, mainly around 30 deg / 86f (sunny warm weather). As I have truggy wheels on my buggy and the car is quite heavy (at least 4,3 kg), that's quite good.

Things I have changed: better 12v-fan (the original isn't that good), connected to the battery cables (running on 5s); attached two more 1000uf-caps; better motor-cables (6 qmm instead of 4 qmm). I wanted to add also new battery-cables, but postboned that, I was afraid to destroy something (all pretty close, dunno if a 6qmm cable fits into the board).
Some of you might think, wtf he's modding that esc. I just want to stay on the safe side, and I think that the cables and these little caps probably aren't sufficient for hard bashing and the moving mass of more then 4kg. I don't want to have peaks in voltage that kill the new esc, I just can't afford a new one at the moment...

Only problem during the last ride was that one of the new motor cables got unsoldered at the esc yesterday (after a 10 meter jump). Fortunately that didn't cause any further problems.

Cogging occurs when starting slowly, but honestly, that doesen't really matter.

The only problem is, that I still don't know how to change the settings. Lipo low Voltage is too low for my old zippy-r, drag-brake also too low. Still trying to find the proper manual...
florian

himalaya · 01:38 AM

The ESC is manufactured in Taiwan by a company named SAE. I have two on hand for testing. They've proven themselve reliable after tens of runs with 6S LiPo + 4 pole Neu-Castle motor. Always come back cool after packs of run, thanks to the big and ALWAYS WORKING cooling fan. It could have been made much better if the designer pays more attention to dust sealing. The metal case feels cool, at least visually. Also the form factor is on par with the MMM, or even a little smaller footprint. Low speed starting algorithm is a key point where SAE still have space to work on.

florianz · 09.23.2009, 01:40 AM

hey himalaya,
thanks for that info. That is right, it's not dustproof at all. like that the esc should be located in a save place in the car. do you have a manual you could send me (pdf)?
cheers
florian

himalaya · 09.25.2009, 01:06 AM

I don't have an electronic version of the manual, the one in my hand is paper form and was written in Chinese, and even worse, I lost it in the field. I'll contact the company to see if I can get a electronic version, or even better a electronic version in English.

The ESCs did come with a program box, but I never managed to figure out how to use it.

florianz · 09.25.2009, 01:22 AM

I can send you the manual. they sent me two different manuals yesterday, one for rtr and one for more options.

florianz · 09.26.2009, 06:25 PM

changed some things on the esc, as it didn't work today. I hava no idea what the problem was. at least the on/off switch was kaput and replaced it. also cleaned the inside, which was full of sand and dust. after about 10 lipos... further changed the caps, now running 3 1000uf caps, should be ok. not that much space, but it works...