hello all

[AllenH59]

Well it is fall and I am back in the shop, I sent a $380 order to shars, to get a few cutters and a new boring head. I kind of got pushed back into the shop, as a guy at a tractor shop asked me to make him some axle saddles, so they could weld them to an axle. I bet these are the first ever line bored axle saddles, and I finally found a good use for the horizontal arbor on my horiz/vert mill. They looked fantastic, too bad no one will ever see them. Anyway, I hope you all had a good summer. I look forward to reading your machining stories again for the winter.

[seal killer]

AllenH59--

WE would seem them if you posted some pictures!

--Bill

[refinery mike]

hey do not forget to post pictures of the line boring set up too, love to see them.

[AllenH59]

here goes to attach pic, as you can see I am using the boring head as a fly cutter, and using a 3/8" that I ground the corner off the cutting edge so the point was closer to the middle of the carbide. I am line boring to 2.5" radius, and I am putting the cutter straight up and measuring 5" from the cutter to ensure that my radius is set correctly. This is going to be welded and a few thousandths over is not a big deal. I am using the horizontal mill on my grizzly mill, the work peice is a chunk of 3x3x3/16" tubing, and I cut the face with the seam off in my band saw. I squared up the peice of aluminium shown to my Y axis, and I centered the cut in the the work peice by adjusting the X axis so that the length of the uncut sections was the same on both ends. This was of course approximate as I did not square the pieces after I cut them to length in the band saw. The welder was very happy with them. I really think he was just too busy to fool with them, and wanted to pass the job along.

reduced is the file size

[AllenH59]

note the high tech shroud to keep the chips off the vertical ways....

[Harold_V]

as you can see I am using the boring head as a fly cutter,

Nope! You're using it as a boring head, as you are boring, not surfacing.

Harold

[seal killer]

AllenH59--

Do you have a G3617? I almost bought one, but got the G3616 instead. It is a very good machine, extremely rigid, easy to tram and it holds tram exceedingly well.

--Bill

[AllenH59]

yes, I have a G3617, It is my first mill... Ok Harold, guilty, I am not using a round boring tool in the boring head, like it is built for, I am boring with a square shank tool that is for my fly cutter, (of course and for many other things) I had to grind the corners off the shank, to get it in the 1/2" hole of the boring head. This is the first job requiring very much torque from the horizontal drive, and the factory belts are not very good, I will be off the equipment store to buy better belts. I do like the rigidity of using the horizontal arbor.