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R
Comes down to accurately boring a long hole with a Criterion DBL-202B on a manual machine.
No refurbing, just a little borrowing. 1. I removed four of theses Thomson guides from this wood mortise machine. There are four guides on this vertical plate. 2. I used those four Thomson guides to design this wet cutting tile saw. With the internal bronze bushings the alignment is pretty... -
R
Comes down to accurately boring a long hole with a Criterion DBL-202B on a manual machine.
The Hardy cross slide is not as rigid as I would like. I've seen it flex. I'm working on another idea with a face plate. -
R
Comes down to accurately boring a long hole with a Criterion DBL-202B on a manual machine.
A Hardinge. Are you suggesting that the work mounts to where a tool holder mounts and stick a boring bar into collet? Then just move the cross slide into the boring bar. Never thought of that. I'm thinking about using a wood lathe flange and a scrap aluminum piece mounted to the flange. Turn... -
R
Comes down to accurately boring a long hole with a Criterion DBL-202B on a manual machine.
The hole is going to be in aluminum with a UHMW insert inside the hole. The insert has a hole too. OD = 1.25, ID = .750. This is lathe work. -
R
Comes down to accurately boring a long hole with a Criterion DBL-202B on a manual machine.
I looked and my longest bar is going to go only 3 1/8. Hitting from both sides might work but there will be a discontinuity in the center, :nono: -
R
Comes down to accurately boring a long hole with a Criterion DBL-202B on a manual machine.
F. A. (if you know what I mean. I forget or am to cheap to sacrifice a new cutter for something I'm currently using.) I am having to go study a bit on what you are saying here. -
R
Comes down to accurately boring a long hole with a Criterion DBL-202B on a manual machine.
Thanks neanderthal, you a smarter than you look. https://humanorigins.si.edu/evidence/human-fossils/species/************-neanderthalensis The real question is this: Is it an excuse to go a little beyond limits, assuming the insert bearing will be UHMW and will conform to machining screw-ups in the... -
R
OT optimal cutting speed and feed rate for lawn mower blades?
In my lawn killing days I used mulching blades that saved a lot of waste from going to the street pickup. -
R
Comes down to accurately boring a long hole with a Criterion DBL-202B on a manual machine.
Right now I have a Kurt with jaw height of 1 5/8 inches. What do you think of building a fixture to mount the aluminum block on a lathe chuck and bore horizontal? -
R
Comes down to accurately boring a long hole with a Criterion DBL-202B on a manual machine.
Background: I borrowed four linear bronze lined bearings from this wood boring machine. The three long levers are removed and hanging in a paint booth for painting today. The router is mounted on the vertical plate and there is xyz movement. Made with a drill press, hack saw, hand taps, and... -
R
air compressor pipe head to tank, is this copper ACR?
Make the single tube going from the Tee to the tank a larger diameter or coil up 50 feet and have a condenser. I did this and got a larger diameter tank check valve. -
R
The nature of a carbide edge and what care it likes the best?
Well, I expected you to come into this one and give me a spanking. Is 1800 rpm too fast? A brazed carbide's support is just some steel shank. In grinding the carbide and steel are getting hit with the abrasive at the same time. So the wheel is loading up with carbide and steel particles... -
R
The nature of a carbide edge and what care it likes the best?
It's misleading to the operator standing outside of the cutting zone. A not so sharp carbide still looks like it's doing good. When the insert chips the operator just loosens the set-screw and rotates the tri-tip insert. I'm looking at my edge with a 10x magnifier while turning. The... -
R
The nature of a carbide edge and what care it likes the best?
So I mostly use brazed carbide bits for roughing out SS or anything else. Some of them are marked C5. And I have Iscar brand inserts for the lathe and try to save those for the finish. Somebody said to me once that a carbide edge can start out real sharp and then quickly becomes an intermediate... -
R
TIG torch cooler
The Syncrowave runs the water flow after the foot peddle is lifted. Built in delay before going off. You could use the foot pedal to trigger on/off/delay operation with a small cube-relay and a RC circuit or 555 timer.- rons
- Post #34
- Forum: Fabrication: CNC Laser, Waterjet, Plasma, Welding
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R
Bridgeport knee wear
Your guess is incorrect. It is not wear. Made that way. My machine looks similar.- rons
- Post #6
- Forum: Bridgeport / Hardinge and USA Light Iron
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R
Hardinge cross slide dial and nut. Just doesn't work right. The numbered dial does not stay in sync with the handle.
I'm figuring out what the difference is in the two dial mounts. Looks like the internal depth of the bearing compartments on the two slides need different washers. The cross slide washer is .066 thick. And I figured out that the compound needs about a .012 thick washer. Since my lathe doesn't...- rons
- Post #7
- Forum: Bridgeport / Hardinge and USA Light Iron
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R
OT: Motorcycle engine lubrication
I think it's time for some Italian persuasion to be put upon that first mechanic. -
R
Hardinge cross slide dial and nut. Just doesn't work right. The numbered dial does not stay in sync with the handle.
I wouldn't doubt that the parts on a sharp and a hardy interchange easily.- rons
- Post #5
- Forum: Bridgeport / Hardinge and USA Light Iron
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R
Hardinge cross slide dial and nut. Just doesn't work right. The numbered dial does not stay in sync with the handle.
Taken apart many times. When the hex nut is tight the white ring does not move freely. It does move when the handle is rotated. When the little black screw is tightened down the white ring just does not rotate. Underneath the little black screw I have tried a brass plate and a plastic plate. I...- rons
- Post #4
- Forum: Bridgeport / Hardinge and USA Light Iron