Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia
quote:
Originally posted by Philip Taylor:
Remember that not all controllers are rated the same way. I have had a dead short across one controller and still not made it warmer than room temperature.
That doesnt make sense
A short circuit should cause the controller to feed as much current as it can into the load. If it didnt, then you wouldnt get full drive power.
Unless it has current-limiting built in ? _________________ Great minds discuss ideas. Average minds discuss events. Small minds discuss people
Wed Oct 04, 2006 5:46 pm
Philip Experienced Roboteer
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
The short made my batteries extremely hot. Other QLDers can tell you that my motors and batteries are often too hot to hold but my controllers are still at room temperature.
"Unless it has current-limiting built in ?"
From Electronize site.
A tiny 'chip' thermistor on the printed circuit board continually measures the temperature and will turn off the output if a pre-set limit is exceeded. Likewise, the current flowing through the MOSFET's is sensed and the output turned off if a pre-set limit (approx. 150 amps at max. temperature) is exceeded. _________________ So even the rain that falls isn't actually going to fill our dams and our river systems
Wed Oct 04, 2006 5:55 pm
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
Sounds like the magic chips in Devastator's Bane Bot controlers. It must be magic because I don't know how it works.
These Electronize units sound good,I think I might get 2 of them for my robot
Wed Oct 04, 2006 6:28 pm
Knightrous Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
quote:Originally posted by dyrodium:
quote:Originally posted by Philip Taylor:
Remember that not all controllers are rated the same way. I have had a dead short across one controller and still not made it warmer than room temperature.
ROFL you've got nothing on my 500amp continous hobby ESC
Hey, Aaron mentioned you had some trouble with the 18v dicksmith drills at 24v? I was interested as I was planning on getting some for 24v operation too...
I was talking about Tim and Neweyn blowing there DSE 18v drill motors to bits on 24v... Not Phil _________________ https://www.halfdonethings.com/
Wed Oct 04, 2006 6:36 pm
Philip Experienced Roboteer
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
quote:Originally posted by WiperMotor:
These Electronize units sound good,I think I might get 2 of them for my robot
Don't get them just because they have been good for me for the last three years. You should read as many reports from different people as you can. Find all the pros and cons and make your own decision. _________________ So even the rain that falls isn't actually going to fill our dams and our river systems
quote:Originally posted by WiperMotor:
These Electronize units sound good,I think I might get 2 of them for my robot
Don't get them just because they have been good for me for the last three years. You should read as many reports from different people as you can. Find all the pros and cons and make your own decision.
Yeah well I have been looking all around the web and they sound like good units, and they have been used in a battel robot ,not a bad price eather
Wed Oct 04, 2006 6:48 pm
Philip Experienced Roboteer
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
Orange is basically back together. I have thrown in Alex's speed controllers from his boat. They will only run up to 12 v. I have got 2 7.2 v battery packs. Does anyone have any that they could lend me for the Kilkivan meet?
I will finish putting it together and testing it on Friday. _________________ So even the rain that falls isn't actually going to fill our dams and our river systems
Wed Dec 27, 2006 6:32 pm
Philip Experienced Roboteer
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
I wired it up and it drives. I also reconnected the pneumatic system. It had several leaks, as I often do. They all seam to be fixed now. I need to get some bungs to put into my system to stop pieces of debris finding their way into my fittings. The pressure is set for 9 Bar.
I just need to do a little angle grinding and I will be ready to load it into the ute. _________________ So even the rain that falls isn't actually going to fill our dams and our river systems
Fri Dec 29, 2006 9:10 am
Philip Experienced Roboteer
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
Orange was wedged by wedges and devastated by Devastator.
Alex's boat speedos survived the meet. They got as hot as the battery pack. I am not used to my normal speedos getting hot or warm at all.
If we have another event before I rebuild Marauder, I might run the blue box robot. _________________ So even the rain that falls isn't actually going to fill our dams and our river systems
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