Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: SeagullOne on March 09, 2009, 06:18:55 PM

Title: Old, rusty screws...
Post by: SeagullOne on March 09, 2009, 06:18:55 PM
Is there a tool for prying out out rusting screws that just get ruined when you try to drive them out with a regular driver?

I'm trying to take the brakes off one the my wheelchair motors, and unfortunately, all the screws on the braking mechanism are ruined for my driver. They're very small, very rusty and they've grown very flimsy.

I don't know what to do. I'd hate to have to buy a new wheelmotor motor...again!  :'(

Any help much appreciated.

Title: Re: Old, rusty screws...
Post by: Razor Concepts on March 09, 2009, 06:23:40 PM
http://www.sears.com/shc/s/p_10153_12605_00952154000P (http://www.sears.com/shc/s/p_10153_12605_00952154000P)

Handy tool that will save you from more headaches later in life.
Title: Re: Old, rusty screws...
Post by: SeagullOne on March 09, 2009, 06:30:53 PM
ME WANT!!

Thanks, Razor concepts!  ;D
Title: Re: Old, rusty screws...
Post by: Admin on March 26, 2009, 12:56:24 AM
I often strip the screws in hobby servos (well, they strip themselves, such poor quality and all . . .).

I use a big pair of heavy duty pliers to make quick work of them.

(https://www.kleinconnection.com/KleinConnection/images/d2000-7_icon.jpg)
Title: Re: Old, rusty screws...
Post by: kd5kfl on March 31, 2009, 03:51:05 PM
left handed drill bits. if they work, you get a spark when you drill through the hangup, then the rest of the screw gets unscrewed by the drill bits.
Title: Re: Old, rusty screws...
Post by: pomprocker on March 31, 2009, 05:23:36 PM
http://www.sears.com/shc/s/p_10153_12605_00952154000P (http://www.sears.com/shc/s/p_10153_12605_00952154000P)

Handy tool that will save you from more headaches later in life.


Did you read the reviews?
Title: Re: Old, rusty screws...
Post by: Soeren on March 31, 2009, 07:29:38 PM
Hi,

Oh, they do work (but don't buy them too cheap, they might be over-hardened too make them seem tough).
However, you have to use all bolt extractors with caution, i.e. never tilt them the slightest, but keep them completely in line with the bolt.

Personally, I prefer this type: http://www.sears.com/shc/s/p_10153_12605_00966196000P?mv=rr (http://www.sears.com/shc/s/p_10153_12605_00966196000P?mv=rr) even if they take a bit more labour to get the job done, since you have to drill into the bolt.