Todays Project - What did you do today?

[sasquatch]

Great work guys!!

[f350ca]

One of the finished hubs. Was surprised National calls for 5 thou interference fit on they're seals, seams like a lot.



Was given that boring bar Ed. it has interchangeable ends, with a jack screw to adjust the offset, like a boring head in a mill. the other ends have inserts with no chip breaker. never could get them to cut well.



This is a boring bar I made to cut out the bearing housings on an excavator after I welded them up to repair wear. Its about 2 inch in dia. and takes a 1/2 inch cutter.

[EdK]

That's an interesting boring bar with the interchangeable ends. The one you made, now that's a big boring bar. How do you hold that thing to use it?

Ed

[Mayhem]

Ed - it looks like the weight would keep it in place! Just drop it on top of the cross slide and start cutting. Actually, I'd like to see more about it too...

[Sunset Machine]

Looks like mine!

  out.jpg (Size: 42.34 KB / Downloads: 145)

[TomG]

You guys are really hung up on big tools!

Those quick change inserts are unique Greg, I've never seen that before.

Tom

[EdK]

(04-23-2013, 08:19 AM)TomG Wrote: You guys are really hung up on big tools!

Tom

We're a sick bunch, no doubt.

Ed

[f350ca]

All I did was machine the end to fit into a tool holder, its clamped in a holder in the photo. Was for a particular job. Sunset's method would be a lot stiffer.
When I made it I was boring out cast steel housings that held bronze bushings. The axles had worn through the bushing and into the housing. Used the mig caulking gun to build up the worn section but needed a stiff bar to not vibrate during the intermittent cuts, as I trued it up.
On a side note, I ordered bronze tube for the bearings as close to dimension as I could. They had a small flange on the outside to act as a thrust bearing, so needed to take about 3/8 of an inch off most of the OD on 8 bearings. I cleaned out the chip tray on the lathe and spread a plastic tarp to catch the swarf. Salvaged 70 pounds of cuttings, about 1/2 a 20 litre pail.
Tom go BIG or go home, lol

[Sunset Machine]

Mine's used on a horizontal mill for turning jobs, flats on top and bottom clamp to the table. In the lathe photo, it's threading a chuck backing plate for that mill. 4 TPI threaded nose, I needed something pretty rigid and that bar was handy.

This is an 8" chuck mounted to that plate and dressed up as an adjustable flycutter, swinging about 12 inches here. I've used this to face automotive cylinder heads, hydraulic motors/pumps and other stuff, leaves a nice finish if the material co-operates.

Size does matter. <chuckle>

[f350ca]

I know I threatened to post cabinet shop pictures if we didn't get some activity, and now we are but thought this one might be interesting.



Making sash for glass cabinet windows. This is the cutter arrangement on the shaper to form the cope that interlocks into the moulding around the pains