Printable View
hi all
ive been looking at various specs of robots and ive seem a few different esc's used such as wotty 360, wotty 180, roboteq, sidewinder, 4qd etc
ive tried to find out prices and amp ratings of there and ive had success with some but not so much with others
it will sound tight wad (mainly since i am :lol: ) but i need to balance efficiency with cost but i really dont know what to go for since there is just so much choice so what could you recommend me?
Depends on what motors and gearratio/wheeldiameter you're using.
260mm wheels on bosch 400w (probably) but not sure on reduction yet
Bosch 400 3400rpm@12V 50A
5100 RPM@18V.
13 or 14/1 gearratio
Sidewinder will do nicely.
they seem about the cheapest esc for hw's on the market
They were, but Robotpower doesn't make 'm that cheap anymore.
best ove found is £265 + p+p, know of any cheaper
That was the old new-pricetag. $299.
Unfortunatly, Robotpower make's em on order now, and that's $499 the last time I looked it up.
ive fiound them for $399 on robot market place :)
plus $100 postage
only $13 shipping but its more that the current modle is discontinued so i would have to get in contact with them if i wanted one
Anyone know how much the Wotty's are costing these days? Looking at the Wotty 180EV or possibly the Wotty 100, though that might be pushing it a bit.
last i heard wottys were £290 for a 180, £360 for a 360 but best to ask Ian. I would go for a wotty over anthing else at the moment. Roboteqs are too expensive to get fixed (~£170), Sidewinders are abit too close to their limits and as far as im aware you still cant get Vantecs fixed.
Why do people use the 360 when the 180 can take 90a?
Because The 360 can take 160 amp
Sidewinders take 80a and people use those :)
Yes...Your point is ?
Different motors vary in terms of their power, especially when run on different voltages and put under different loads. People use whatever speed controller is suitable and correctly sized for their system.
With Bosch 750 and a not too fast drive, a Sidewinder does nicely.
I gave the calculation involved for the 400@18V (do not overvolt to 24V, or use a BIG reduction ratio, 25 or more to 1) and 260mm wheels, aiming for 15km/u.