Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: ***bacon*** on March 25, 2009, 03:38:10 PM

Title: Need help modifying a servo
Post by: ***bacon*** on March 25, 2009, 03:38:10 PM
Ok, im buildin the 50$ robot, but im having trouble modifying my HS-311 servos. the tutorial on modifying says to take out the part that keeps the pothead spinning with the gears, but that part wont com out on mine. What do i do?
Title: Re: Need help modifying a servo
Post by: Soeren on March 25, 2009, 06:42:21 PM
Hi,

Use lethal force  ;)

If you've got a Dremel or similar tool, a small router bit should get you there in a minute.
If not, a pair of pliers and a firm grip should do wonders.

If you still haven't killed the servo after the above, post (readable) photos of the exact part and its surroundings.
Title: Need help modifying a servo
Post by: ***bacon*** on March 25, 2009, 08:06:58 PM
hey soeren thanx 4 ur reply and the max attachment size is 1000kb and my photo is 1.85 mb can u tell me how to post it a different way please
Title: Re: Need help modifying a servo
Post by: SmAsH on March 25, 2009, 11:22:09 PM
try using this. just put it on your desktop and drag your photo onto it and another will be crated smaller.
Title: Re: Need help modifying a servo
Post by: xCyclone on June 01, 2009, 03:55:30 PM
Use a 7/32 drill bit . Do not over drill or else you have messed up the entire main gear!!! just make sure that the excess material is cleaned out before putting everything back together.
Title: Re: Need help modifying a servo
Post by: SmAsH on June 02, 2009, 12:36:08 AM
make sure you center punch it first...
otherwise you will take off some teeth with a stray bit..
Title: Re: Need help modifying a servo
Post by: kpmcgurk on June 02, 2009, 05:19:13 AM
no need to center punch it. They are plastic gears, and there is that slot for the bit to go into in addition to there being a ring around it!
Title: Re: Need help modifying a servo
Post by: SmAsH on June 02, 2009, 06:59:18 AM
 :o mine was different!
i tried cutting, then filing... then drilling and ended up (censored) up one of my gears.
i really need some practice at this stuff :-\
Title: Re: Need help modifying a servo
Post by: Finnik on June 02, 2009, 08:44:34 AM
I had this problem too, not being able to get that bit out of the gear. There is however an easy solution, after gluing the potentiometer in place, just take some wire snips or a sharp knife and cut the tab of the potentiometer off. This should do the job as well as taking out the part of the gear, which in some cases is impossible without drilling or brute force.

You could also have read the tutorial until the end, checked out the links and have found this forum post (http://www.societyofrobots.com/robotforum/index.php?topic=507.0) which would have showed you the solution.