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View Full Version : Tool-making.... shops are good.



J Tiers
10-28-2007, 01:53 AM
Having a shop is certainly good.

Needed a tool for removing a certain type of contact from a fairly high density circular connector. Not only are the OEM ones *not cheap*, they are also out of stock, but I need it now, not in a couple weeks.

The tool is fairly simple, just a tube 0.125 diameter, with a hole 0.104 down it, and a plunger to push out the contact. The tube closes the crimped-outwards "stabbers" that catch on a lip in the connector and hold the contact in place after it is pushed in from the rear. Closing them allows the contact to slip backwards and out.

So, down to the shop.

The result is here. The back part does the pushing with a pin down the middle.
http://img.photobucket.com/albums/0803/jstanley/sremvr1.jpg

I need to keep this in a toolbox, so it needs to protect the hardened tube. The cover screws onto the front.
http://img.photobucket.com/albums/0803/jstanley/sremvr2.jpg

I didn't have any tube, so I had to drill the 0.104 hole down a piece of 0.125 O-1 drill rod. It actually worked out well. Here is the nose of the thing. The 0.104 I.D. extends back 0.6", after which it goes down to 0.081, to prevent the "pusher" from being able to fall out the back. The tube was hardened and drawn to a dark straw to cut wear.
http://img.photobucket.com/albums/0803/jstanley/sremvr3.jpg

If I had felt really ambitious, I was going to work out a way that the rear pusher handle could screw in, maybe with interrupted threads so it could push in during normal use, but lock when not in use. I needed it sooner than that, so I'll have to figure that out later if I find it's a problem.

The hole in the side allows tightening the set screw in the pusher shank that holds the pusher's rear part onto the front part. They can't come apart unless that is loosened.

tony ennis
10-28-2007, 11:14 AM
Very nice. How long did it take?

Herm Williams
10-28-2007, 11:35 AM
I like that. Sure looks like an improvement over the oem plastic type that breaks about half way thru the job.
re

J Tiers
10-28-2007, 12:52 PM
Very nice. How long did it take?

I am not sure, depending on whether you count the "design time". Probably only an hour or so real working time.

I did it in a couple evenings, definitely NOT working straight thru on it. I did it along with other stuff, a piece here and a piece there, as the setups dictated, so I didn't "clock in/out" on the job.

The back (pusher) is as long as it is simply because the stock had a hole down it that deep. without the pre-existing hole, it would have been shorter

wierdscience
10-28-2007, 08:15 PM
Nice work,all it needs now is a pocket clip.