Joined: 16 Oct 2004
Posts: 436
Location: roleystone perth. WA
Yet another servo hacking question
could i grab a normal servo and hack it to be a 12v electronic switch?
Aim is to make servo a micro switch at 12v so i dont have to use a horn to make a weapon switch
Has anyone tried and succeced? _________________ For West ausies interested in robotics email me at: theoneshrug@hotmail.com
OR
dragoonarie@gmail.com
best quote ever:: "Those Gas-Turbine style warehouse heaters arent illegal, and neither is remote controlling one as far as I know."
Sun Jun 26, 2005 12:08 am
ffej Experienced Roboteer
Joined: 22 Jun 2004
Posts: 595
Location: Kurrajong, NSW
Seems like im constantly answering the same question . . .
Joined: 16 Oct 2004
Posts: 436
Location: roleystone perth. WA
_________________ For West ausies interested in robotics email me at: theoneshrug@hotmail.com
OR
dragoonarie@gmail.com
best quote ever:: "Those Gas-Turbine style warehouse heaters arent illegal, and neither is remote controlling one as far as I know."
Sun Jun 26, 2005 4:36 pm
dyrodium Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
On this topic: Is there a way to hack a servo circuit board to control a drive motor? (kinda like servo hacking for continuous rotation, but for another motor). Thanks! _________________ ( •_•)
Joined: 22 Jun 2004
Posts: 595
Location: Kurrajong, NSW
How big's your motor ? If it draws less than an amp you can just pull the servo guts out and use them. If it draws more than an amp however, you need to use an h bridge of transistors or relays hooked up to the servo, I did this on the original Catalyst and Singularity before I had the money to buy the RS80D. Ill draw a schematic when I get time if you need it . _________________ Jeff Ferrara
fb@ffej.net
ffej.net
Sun Jul 03, 2005 11:19 pm
dyrodium Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
Well, its for a beetle, so i'm assuming they draw less than 1a. Actualy, using relays and servo guts may be a nice alternative to microswitching (which constantly need adjusting). A scemetic would be nice thanks! _________________ ( •_•)
Nice diagram Jeff But I think it's way to complicated for the newbie. Also, why use 4 relays when you can just make a simple H-bridge with two SPDT relays? Using two SPDT relays prevents any shorts and gives breaking as well.
I've made a modification to your diagram to show how the SPDT relays can be used. This is less bulky then the 4 relay version and if you weld a relay and you switch the polarity, all it will do is activate breaking and will not direct short the battery.
Joined: 22 Jun 2004
Posts: 595
Location: Kurrajong, NSW
Yeah, that works too
I didnt even think of that, lol. _________________ Jeff Ferrara
fb@ffej.net
ffej.net
Fri Jul 08, 2005 1:52 pm
Big AL Experienced Roboteer
Joined: 16 Oct 2004
Posts: 436
Location: roleystone perth. WA
it would be so nice if i could understand the diagrams .
awell i guess i be told to google it.
i love some help understanding them. _________________ For West ausies interested in robotics email me at: theoneshrug@hotmail.com
OR
dragoonarie@gmail.com
best quote ever:: "Those Gas-Turbine style warehouse heaters arent illegal, and neither is remote controlling one as far as I know."
Fri Jul 08, 2005 3:03 pm
Knightrous Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
It's okay Al, we have all been at the "I don't understand that garble" stage
Joined: 16 Oct 2004
Posts: 436
Location: roleystone perth. WA
thanks
any sites that might teach me how to read them would be good too.
They might be added to the ultimate guide section so newbies (like me) don't have to ask stupid question and clog up the forums _________________ For West ausies interested in robotics email me at: theoneshrug@hotmail.com
OR
dragoonarie@gmail.com
best quote ever:: "Those Gas-Turbine style warehouse heaters arent illegal, and neither is remote controlling one as far as I know."
Think of them like a road-map.. although they dont necessarily show a "physical" layout as the components are actually arranged on the circuit board, they do show what the path "looks like" to an electron.
Any specific questions
(other than "I dont understand all that, please explain" - which can be roughly translated as "please condense about 2-5 years of electronics courses into something I can read and understand in 30 seconds with no effort")
will be happily answered. _________________ Great minds discuss ideas. Average minds discuss events. Small minds discuss people
Sat Jul 09, 2005 1:46 am
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