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Brushless
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Glen
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Joined: 16 Jun 2004
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they look like a half assed version of the castle creations controller which seems to be pretty poor itself Razz but for $40 who cares!

only 25v max which dont leave much room for expansion
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Post Mon Aug 06, 2007 7:14 pm 
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Knightrous
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I don't like the lack of heatsink... Confused
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Post Mon Aug 06, 2007 7:22 pm 
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Nick
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Having a BEC that U can't use over 12V (just like the Castle Creations model) is kinda pointless too.
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Post Mon Aug 06, 2007 8:02 pm 
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Knightrous
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Hobby City has upsized on their brushless motors... Found one the size of a Magmotor, they reckon it will peak 6.5KW! Shocked

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=5142

Nick, when can you buy one for testing Wink
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Post Thu May 01, 2008 5:38 pm 
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dyrodium
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They had that ages back, it's the fact it needs like a 200A controller that probably puts out of even Nicks range Shocked
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Post Thu May 01, 2008 6:31 pm 
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Nick
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Wasn't Glen lusting after one of these last year. You are right, the motor might only be $149, but the controller would be $400 or more - not really sure what I would use it for anyway...
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Post Thu May 01, 2008 6:38 pm 
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dyrodium
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Just saw this on the hobbycity forum, people might want to consider it if they were getting the sentilon, don't know how accurate it is though.

"Dear all users and admin,

I recently get the third version of the ex. Sentilon, OEMRC and now TR 100A (12s) ESC.

There is a tendency recognisable that the whole ESC is becoming cheaper and cheaper.

At the third version they only use plastic covers.
Moreover some devices on the PCB hase changed to no name parts.
Soldering is in some cases more slutty.

It works - O.K. - I know that's the point - but what's with lifetime?
(with cheaper electronic devices)

The price of the ESC has increased! But not the quality.

The same issue can be seen at TowerPro motors.
They now use thinner bells at their outrunners.
The end caps are not of the same quality of workmanship as they were before....

It seems that the evolution is going reverse!"
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Post Mon Sep 01, 2008 8:21 am 
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Glen
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question -

im using a brushless motor to drive a pump with a plush 30amp controller from united hobbies. i want to just turn it to full RPM when i turn a switch on so im in need of a circuit of some form.

you cant start the controller on full rpm as it has a safety lockout so youd need to have it at 0% pwm for a second or two then go to full.

any ideas?
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Post Tue Oct 07, 2008 10:12 pm 
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Valen
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Joined: 07 Jul 2004
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simplest (for me) is a PIC and some software.
you could try hacking something with a 555 and some sort of RC pot thing.
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Post Tue Oct 07, 2008 10:20 pm 
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Nick
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Location: Sydney, NSW


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You could buy a cheap 'servo exerciser' module for around $20. If you really didn't like the proportional control, you could replace the pot with a switch & resistors to go from 0 to 100%.

Post Tue Oct 07, 2008 11:33 pm 
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