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The Brushless thread
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Jaemus
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Joined: 01 Apr 2009
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love watching those thin wooden frames bend Razz

Post Mon Jul 13, 2009 9:35 pm 
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Rotwang
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After getting a couple of little things from Hobby City I have taken the plunge and ordered a brushless motor and ECS as an experiment. Razz
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Post Wed Aug 26, 2009 10:37 am 
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seanet1310



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lol.
dont tell me you are thinking of going to the dark side Gary.
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Post Wed Aug 26, 2009 5:22 pm 
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Rotwang
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Yes well just because Glen has a high attrition rate doesn’t prove there no good. Smile

Also Brett has been keen on them for a long time.

Really its one of the main things that keeps me going in this hobbie.

Trying new stuff and learning new stuff.

If it looks promising it might find its way into Reboot.

He is in pieces at the moment for a few modifications.

To be competitive we have to find some weight somewhere for a stronger drum axel.
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Post Wed Aug 26, 2009 5:56 pm 
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shreddy



Joined: 09 Jan 2009
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what did you get?
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Post Wed Aug 26, 2009 7:45 pm 
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timmeh
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Yer i was a bit skeptic on brushless in the beginning but sooner or later people work out most of the bugs then its worth giving it a try.
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Post Wed Aug 26, 2009 8:06 pm 
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Glen
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yeah well as with any hobby part we use in the robots you cant just bung it in the robot and expect it to work flawlessly for eternity. gotta mod everything Smile the hobbyking ones just had notoriously crap magnets + glue in them. was worth splurging the extra $40 on a decent motor then spend time regluing them all in for me anyway Very Happy

definitely another frontier to get your head around anyway. keeps you on your toes Laughing

good luck
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Post Wed Aug 26, 2009 8:10 pm 
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Collo



Joined: 06 Apr 2008
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Well it could either go one of two ways:
1. Gary finally has some unreliability and/or lack of showmanship with a robot.
or 2. Rotwang robots become ever more destructive and one step closer to ruling the world...
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Post Wed Aug 26, 2009 9:34 pm 
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Rotwang
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http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6679

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=2169

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=2166

All very hypothetical at the moment but were sticking to a friction drive somewhere between the motor and drum to reduce shock on magnets, twisting shafts etc.

Not worried about getting weapon up to full speed instantaneously.

More an exercise on saving space and weight than max speed power spin up.
After all Reboot only used a 100 watt scooter for weapon before this.
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Post Thu Aug 27, 2009 9:43 am 
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Glen
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should be fine if its a similar setup to minimower Very Happy those plush controllers are so hard to kill.

noticed there making scorpion ripoffs now hehe

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=9764
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Post Thu Aug 27, 2009 11:36 am 
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Rotwang
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Thinking of using a tiny lipo pack on the scooter drives and an M1 pack on the brushless and experiment with cell count.

Yes use timing belt to friction wheel like minimower.
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Post Thu Aug 27, 2009 1:45 pm 
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Rob Team Rotwang



Joined: 19 Jun 2004
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had a play, got it working, just wondering can we reverse direction with just a double poll relay? need to stop it before reversing direction probubly

Post Sun Sep 06, 2009 6:38 pm 
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shreddy



Joined: 09 Jan 2009
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Location: Wantirna, Melbourne


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what are those conectors you have? they look like they lock Smile
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Post Sun Sep 06, 2009 6:43 pm 
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Rotwang
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http://www.jaycar.com.au/productResults.asp?whichpage=2&pagesize=10&keywords=molex&form=KEYWORD


Yes both type lok together, try to make things idiot proof, saves on magic smoke. Smile
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Post Sun Sep 06, 2009 7:09 pm 
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timmeh
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Confused Are you sure they can handle brushless current draw?
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Post Sun Sep 06, 2009 7:48 pm 
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