Recent content by MachineTom

I have a collection of parts from a ProtoTrak instantiation on a BP mill. These are the mounts for the servo motors, with bearings for the leadscrews. Nice AL castings save lots of time with rhe process of conversion. For sale $150, for X,Y set. plus freight. quickest is tetrawheels at hot mail...

Compression ratio between 16:1 and 20:1. Injector pressure on old type injector is a pop off around 2500psi. this is the type with an inline injection pump, steel lines to each injector. THe running pressures of these designs is around 10000 psi. Steel lines of 1/4 od and an ID of .020". This...

If SB shows a .6020 taper that is what you need to know. If making an adapter for a center, I suggest making it a bit smaller at the large end, that way it will be recessed, about -.010 dia. should be enough. Norman #4 1/2 morse taper is about 5.375 long [gage line} Big end 1.5", taper of...

Awhile back I made some spindle adapters for Rockwell lathes and others. The common problem is folks confuse taper angle, with taper size-MT. Each Morse Taper # has an angle and a size. When used in the spindle bore, the Morse ANGLE my match a certain MT, but the size is not even close. Morse...

What sort of work holding will you use with the Rod. 3/8 NC is tough sometimes depending on material. Scored rod from slipping in the chuck/collet never shows well. A diehead is what I'd use for the threads, work in a collet, but if material is more than mild steel, you may need a dog driver as...

My buddy has a SB 7 in good shape, no cabinet. In NJ, May be to far for you. If serious I will get photos.

Sorry, my jaws are to small for your chuck.

Please post the dimensions of the jaws 'm width, groove width, height. I have some unknow jaws. Tom

Most engines (full scale) have the crankshaft C/L offset to the cylinder C/L. This to reduce the angle of the connecting rod on the power stroke. This will increase engine torque a bit. combined with offset in the piston wrist pin, makes the piston skirt bear a bit heavier to one side, thereby...

I made my Corliss rings as the drawing showed. First turn the outer diameter, place piece of brass, in one of the chuck jaws, half the thickness of the offset, so a .015 will yield 030 offset in the ID. Then measure for half the width. And make the cut, flip an do the other side of the Z. I...

I dont see mentioned if you have seen the car at the MB Museum in Stuttgart. I worked for Mercedes-Benz of NA. One of the fellows I worked with had been in charge of the apprentice program, and that was who built the model you see in the museum today. When Daimler celebrated its 100 anniversary...

To expand on what Ken posted. A gun drillbit does not look like a drill, a long shaft with a straight flute or two to carry away the chips, a hollow bore to flow coolant to the cutting head, which is a carbide head with 1-2 cutting edges. I use a lathe for deep drilling,( Cannon barrels)so the...

There is a site in western. NY, British Fasteners. All those sizes, taps and dies as well. Nice folks to deal with Tom

Look in MSC or Mcmaster, dists. all kinds from $10 up.