Results 21 to 30 of 32
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10-02-2007, 07:40 PM #21
- Join Date
- Jun 2007
- Location
- Alberta, Canada
- Posts
- 45
Fantastic source
Thanks Bill, that's a fantastic source for motor control ideas. I really like the sidewinder controller on there. Very good specs. Too bad you can't use it directly via serial control like the KT5198a. If only the KT5198a was just a tad bit beefier, then it would be perfect. 25 - 35 amps at 24volts would be great.
Dutchboy
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10-03-2007, 07:25 AM #22
- Join Date
- Oct 2004
- Location
- Berkshire, UK
- Posts
- 118
Hi All,
Yesterday I was asked to "dump" a leather chair that we had bought a year or so ago!
It was one of those electric articulated chairs that one uses to fall asleep in front of the television at the end of a hard day!
I opened up the fabric underneath only to reveal a "superbly silent 12volt driven screw actuator". It has much potential for modification or direct application in moving platforms. I contacted the store where we bought it this morning and have just collected five various types of discarded actuators of varying speed and throw gratis!!
It might be worth investigating wherever you live on the globe if such actuators are available for experimentation. Good for supporting the global drive on recycling!!
Bill.
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10-03-2007, 01:02 PM #23
- Join Date
- Jun 2007
- Location
- Alberta, Canada
- Posts
- 45
chairs
That's a great idea Bill! I'll have to look into electric vehicle chairs as well.
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10-03-2007, 01:34 PM #24
Thanks a lot for this great link, Bill.
It has so much info that I have been searching for a long time: Motor controllers and H-bridge drivers with all schematics and component specs listed! Fantastic. Seems I have missed out some new developments in this field as my H-bridge design now seems hopelessly outdated. Never too old to learn something new!RR
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10-03-2007, 05:47 PM #25
- Join Date
- Oct 2004
- Location
- Berkshire, UK
- Posts
- 118
Many thanks for all your comments!
Here is another site that I have purchased some items from and contains a lot of information that might be helpful also!!
http://www.4qd.co.uk/
Bill.
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10-03-2007, 06:19 PM #26
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10-03-2007, 10:32 PM #27
- Join Date
- Jun 2007
- Location
- Alberta, Canada
- Posts
- 45
Beefier 5198a
Well, the traces that lead from the mosfets to the motors need to be thicker, so soldering some copper on those would help. The main problem is that the mosfets are to close together to allow a really good heat sync/fan solution. I have managed to add a heat sync, but it's not that great because I had to use insulators between the mosfet and the heat sync. I would prefer to have a separate heat sysc for each mosfet.
Dutchboy
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10-04-2007, 12:54 AM #28
What about mounting a fan over the mosfets for example http://www.robotpower.com/products/ under OSMC.
Could extra wire be run from the mosfets instead the beefing up the traces?
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10-04-2007, 02:49 AM #29
- Join Date
- Jun 2007
- Location
- Alberta, Canada
- Posts
- 45
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10-04-2007, 07:46 AM #30
- Join Date
- May 2006
- Location
- london england
- Posts
- 177
Just an Update
Hi Guys just thought i'd chip in and say not forgotten and am busy trying to come to grips with Visual C# ( Headaches or what LOL ) been tough going as i continually suffered mental block on the brain reading books and taking stuff in LOL;-0 .
Seriously though been doing a lot of reading and trying to break down MOPLAT OPEN SOURCE Code into blocks that i can understand (nothing wrong with the program just brain fade on my part ) thanks to the stuff you guys have put on the FTP site and numerous Bargins from E-Bay i am finally turning the corner, Yesterday i had a Light bulb above the head moment and all of a sudden i can relate to how things work in the code and can at last look forward to trying to create a version for my platform based on the code you guys released ( sorry but am one of these guys that needed a jump start when it comes to Programming ) so thanks to the efforts of Jim, Kranky, Dutchboy , the others i am sort o getting there .. will keep ya'll posted
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