Quote:
Originally Posted by Pacman
Hi,
I'm looking to buy a new servo for my 2wd buggy. I'd like to pay less than £50. My last servo was an Alturn AAS752MG which after a heavy shunt will not return to centre quickly and eventually causes the receiver to unbind (I assume due to a voltage spike).
I've been looking for a decent replacement over the last week, but I keep reading comments about Alturns and Savox's being power hungry and causing some receivers to unbind.
I was wondering if anybody had any recommendations. I don't necessarily need the fastest servo, just something reliable.
Ideally I think I should get something with a torque of at least 12kg/cm.
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Something is jamming in your servo, the figures you need to find are stall currents, the powerful savox have a higher stall current than your BEC can supply but this is probably the case for any 12kg + servo unfortunately when I looked the only manufacturers that print this info that I could find are Savox and HD. If you have a saver fitted its probably not going to be an issue as that will stop the servo locking. make sure your endpoints are set properly so the servo isn't pulling against a dead end. I'm running a Savox 1251 on 2wd which has a stall current of 3A which the BEC will handle (just) and a 1258 on 4wd which has a stall current the BEC wont handle but it does have a saver. The unbinding thing various from receiver to receiver, some are more sensitive to voltage dips, the spektrum have a bit of a name for this, with spektrum and Core / Code receivers I use a capacitor plugged in to the receiver, the Sanwa I have now seems to be ok without it. Of course you could always buy the Tekin rs pro gen 2 which has a 5.5A BEC but there wont be any ££ left to buy a servo