Search found 129 matches

by KellyJones
Sat Feb 14, 2015 3:25 pm
Forum: General Discussion
Topic: How To Hold A Part
Replies: 5
Views: 1052

Re: How To Hold A Part

Exactly. Sometimes a file is the right tool.
by KellyJones
Mon Jan 12, 2015 7:23 pm
Forum: General Discussion
Topic: Gear Cutting #2 Or A further education !
Replies: 11
Views: 1237

Re: Gear Cutting #2 Or A further education !

One of the great secrets of the gear world is that there is no such thing as a "standard" gear. If you find a gear made to "standard", then you can bet the fellow is not an experienced gear designer. "Standard" proportions really only work for ratios less than 1.5:1. Most designs modify the pinion f...
by KellyJones
Thu Jan 01, 2015 6:00 pm
Forum: Lathes
Topic: Turning a Crankshaft
Replies: 4
Views: 1038

Re: Turning a Crankshaft

Ok - I found a couple of 3/8" square HSS tool bits and ground one left hand and the other right hand. The 4" OAL is just deep enough to reach the work area. I made sure to include the relief as Harold indicated. They work pretty well at the ends of travel on the shaft. The width between the cranks i...
by KellyJones
Mon Dec 29, 2014 9:54 pm
Forum: Lathes
Topic: Have you ever leveled your lathe this way?? Will it work??
Replies: 11
Views: 2487

Re: Have you ever leveled your lathe this way?? Will it wor

I agree with the previous posts, but they don't help you much. Given that you don't have access to a machinist's level, there is a way to check for twist with a piece of glass. Cut the glass to fit across the ways and make it as long as you can get is (preferably the full length of the ways). Lay th...
by KellyJones
Mon Dec 29, 2014 9:41 pm
Forum: Lathes
Topic: Turning a Crankshaft
Replies: 4
Views: 1038

Turning a Crankshaft

Trying to turn a crankshaft for a hit and miss engine. The shaft diameter is .500 and the throw is 1.5". The raw stock is .625 cold rolled plate. Laid it out and used the milling machine to remove most of the material between the cranks and common to the crank pin. Drilled tool centers for both shaf...
by KellyJones
Thu Sep 11, 2014 10:11 pm
Forum: General Discussion
Topic: No way to machine this?
Replies: 19
Views: 2531

Re: No way to machine this?

I would be tempted to find a way to broach the small slot then machine the larger slot.
by KellyJones
Sat Aug 23, 2014 1:53 pm
Forum: General Discussion
Topic: More old tools
Replies: 3
Views: 948

Re: More old tools

I agree. I forgot to mention that the sleeve around the bit is spring loaded. The motion is purely rotary though, no reciprocating motion. Take a look at the patent drawings. Quite clever.
by KellyJones
Sat Aug 23, 2014 11:58 am
Forum: General Discussion
Topic: More old tools
Replies: 3
Views: 948

More old tools

Still going through my father-in-law's old tools. I found this item in the bottom of the box. Made by William H. Keller Co. Patent number 1913003 written on it. By chance, I found the bit and brought it home too. I only figured out the two went together after I looked at the patent. It works very we...
by KellyJones
Fri Aug 22, 2014 6:59 pm
Forum: General Discussion
Topic: Help putting 4x6 bandsaw back together...
Replies: 14
Views: 2173

Re: Help putting 4x6 bandsaw back together...

I feel your pain. First, it has come to my attention that the arm pivot may not necessarily be true to the table on these import saws. A friend of mine tells of how he has in the past disassembled the pivot and bored new bushings parallel to the table to correct the problem. Most of these small saws...
by KellyJones
Tue Aug 19, 2014 7:16 pm
Forum: General Discussion
Topic: Old Machinist's Tools
Replies: 15
Views: 2038

Re: Old Machinist's Tools

Thanks for all the replies guys. I too, read the thing but a ridge reamer didn't mean anything to me until it was discussed here. Following along the same lines, here is another tool I found in the box. In one direction it has an elongated eye, like a sewing needle. In the other plane the pointy end...
by KellyJones
Mon Aug 18, 2014 10:43 pm
Forum: General Discussion
Topic: Old Machinist's Tools
Replies: 15
Views: 2038

Old Machinist's Tools

My wife and I just came back from her relatives. While there we helped the family tackle the sad task of sorting through her father's tools. Although he passed 5 years ago, it was still a bittersweet task for the siblings. Among his possessions was a couple of tool boxes he had inherited from her gr...
by KellyJones
Sat Aug 09, 2014 8:24 pm
Forum: Milling Machines
Topic: Shop Safety?
Replies: 30
Views: 2660

Re: Shop Safety?

Thanks for the replies. As I contemplated my mistake from the back of a lawn mower I came up with an explanation. Glad to hear I came up with the same explanation you provided. Proves I'm not stupid, just ignorant... :oops: