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Re: Steel Project #4

Posted: Thu Feb 10, 2011 11:59 am
by sheffield steel
Bent my friend, THEY ARE SWEET! you put us to shame. GOOD SOLID CRAFTMANS SHIP.

Dave. :D

Re: Steel Project #4

Posted: Thu Feb 10, 2011 11:41 pm
by Pat Comeau
Bent!...i like the pedal design :) .

well done my friend

Pat C.

Re: Steel Project #4

Posted: Fri Feb 11, 2011 9:34 am
by Bent
Thanks Pat

Re: Steel Project #4

Posted: Sat Feb 12, 2011 9:43 pm
by Bent
Well, here go the changer fingers. a couple of pics here and the rest can be found on http://s389.photobucket.com/albums/oo33 ... ct%20%204/ to save Larry some bandwidth.
fingerbndsw.jpg[/attachment [attachment=0]fingerstrimrnd.jpg

Re: Steel Project #4

Posted: Sun Feb 27, 2011 8:36 pm
by Bent
...and here is the finished gold... um .. brass finger before chrome plating. Almost too pretty for plating isn't it?
brassfngr-006.jpg
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Re: Steel Project #4

Posted: Sun Feb 27, 2011 9:14 pm
by Bent
Finally got some fixtures made to mill the raise and lower scissors. Had a tough time figuring them out. Now when I finally get them made they really are the simplest little things and now I can't understand what I was worried about.
When done on the mill, there is just a little sanding to do on the disk sander for the lowering scissors. And for the round part on top of the raise scissors, they get that done in the finger-rounding jig. Works great. Then de-burring and bend the rod pullers and voila it's done!

Lowers:
scissors~jigL-001.jpg
scissors~jigL-001.jpg (83.42 KiB) Viewed 1568 times
scissors~jigL-002.jpg
scissors~jigL-002.jpg (98.46 KiB) Viewed 1568 times
Raises:
scissors~jigR-001.jpg
scissors~jigR-001.jpg (96.74 KiB) Viewed 1568 times

Re: Steel Project #4

Posted: Mon Feb 28, 2011 8:21 am
by Bill Ford
Stack um, and do a bunch at a time, good idea..Hmmmmm. I like the disposable vise jaws with the groove/cutout for holding parts. Making a fixture for machining multiple part is well worth the effort.

FWIW.......If you ever buy a tool box from a retired machinist, never,ever throw away any of those funky looking "thingys" that you find in there, they were for a purpose, you may never use any of them...but you never know.

Lookin good Bro.

Re: Steel Project #4

Posted: Mon Feb 28, 2011 12:55 pm
by Farmer
Bent, proud of you my friend, I told you to think on it for a little bit, and you would figure it out. The more you do it the easier it gets. I found if making more than 2 or 3 of the same thing the jig is the way to go. Besides they look more professional. It may take a little time, but I think it is worth it....


Mike

Re: Steel Project #4

Posted: Mon Feb 28, 2011 4:33 pm
by burt
Bent,
There's a small design fault in the finger that you should rectify before you assemble the steel.

There is a slight bend (arrowed) that should be smoothed out, to eliminate the possibility of string breakage.

It needs to be blended in to the radius, so that the string does not go over an abrupt angle.

Re: Steel Project #4

Posted: Mon Feb 28, 2011 5:41 pm
by Bent
Burt, I'll be sure to check with all the string gauges and take your suggestion in to consideration. Right now, when I try with an .011 it seems the exit hole is in the correct position to make it a gentle transition form hole to rounding. If I see a problem, it sure won't take much filing to eliminate this.
Thanks.