Search found 1522 matches

by Russ Hanscom
Sat Jul 21, 2007 5:42 pm
Forum: Welding
Topic: Welding, brazing, or silver soldering sintered iron
Replies: 2
Views: 2600

Welding, brazing, or silver soldering sintered iron

Has anyone successfully welded. brazed, or silver soldered sintered iron? I have a miter gear that is part of the arm raising system for a radial arm saw, the gear is missing one tooth. The gear is about 1 1/2" od and is attracted by a magnet; that and the finish make me suspect a sintered iron prod...
by Russ Hanscom
Wed Jul 11, 2007 8:05 pm
Forum: Live Steam
Topic: What I did on my summer vacation
Replies: 4
Views: 1166

In a different part of the country, you can see the same thing at Chama, NM, where #497 is getting a full overhaul, just finishing boring the cylinders. Check out the Cumbres and Toltec Scenic RR. Join the Friends and come help!
by Russ Hanscom
Wed Jul 11, 2007 7:59 pm
Forum: General Discussion
Topic: What are these counterbores
Replies: 1
Views: 783

Not sure of the original source, but Boeing Surplus had a bunch of the Morse taper style, probably still does, along with the arbors to hold them (1/2" straight shank and so forth). I got a bunch to play with, the price being right. Unfortunately, you are on the wrong side of the country to visit th...
by Russ Hanscom
Wed Mar 21, 2007 3:18 pm
Forum: General Discussion
Topic: 1018 cold rolled and BAD chatter. Please help the newbie.
Replies: 24
Views: 6783

A 24 inch long rod is like turning a noodle. The stiffness or deflection of the rod is inversely proportional to the third power of the span. Said another way, if you double, or half, the unsupported length, the deflection changes by a factor of eight. If yo do not have a steady or follower rest, cl...
by Russ Hanscom
Fri Mar 09, 2007 7:08 pm
Forum: General Discussion
Topic: Need help attaching temporary setup to Garage floor
Replies: 4
Views: 1347

There is one brand of drill in anchor, Star?, that has internal threads, and with the bolt removed, is flush with the surface. Alternately, you could make up some barrel nuts, knurl or thread the outer surface for roughness, and epoxy them into holes in the slab.
by Russ Hanscom
Thu Mar 08, 2007 8:29 pm
Forum: The Junk Drawer
Topic: Q: Do 1/8 X 27 NPS Ball Valves exist ? ...
Replies: 1
Views: 1153

If I am thinking correctly, NPT means National Pipe Taper and NPS means National Pipe Straight. They have the same threads per inch and the same basic diameter, but one is tapered and the other is not. If you really want straight vs taper, you should be able to retap the valve. If the tolerances com...
by Russ Hanscom
Sun Feb 25, 2007 5:57 pm
Forum: General Discussion
Topic: What attachment / shaft for round blade
Replies: 7
Views: 1506

Check see what arbor size you need then look on Ebay. Some times you can get a batch of cutters for less than the cost of one new one. Make sure that they are in good condition though - a bunch of dull ones would just lead to a new project.
by Russ Hanscom
Sun Feb 25, 2007 5:50 pm
Forum: General Discussion
Topic: Special machine
Replies: 17
Views: 3145

I needed to have stuff in storage for over a year with a long move (900 miles) pending. I ended up buying two 20 ft containers ($1800 each) and having them delivered to the house. One was loaded with lathe, milling machine, and so forth, all the heavy iron. I got a bunch of angle iron and built brac...
by Russ Hanscom
Sun Feb 25, 2007 5:31 pm
Forum: Live Steam
Topic: wagon top boliers
Replies: 23
Views: 4926

What you are discussing is what is known as an eccentric welding reducer. They are readily available in all common piping alloy grades and in standard, schedule, wall thicknesses. Most have a short transition section at each end, which could be trimmed or machined away, or it could become part of th...
by Russ Hanscom
Wed Feb 14, 2007 11:56 pm
Forum: Live Steam
Topic: Home Built Code Boiler?
Replies: 15
Views: 3626

Everyone has pretty well covered the issues of materials and fabrication, but there is an equally important third component - design. To qualify for an ASME stamp, a boiler or pressure vessel must have a design satisfying ASME requirements, and the shop doing the work is responsible for this effort ...
by Russ Hanscom
Fri Dec 01, 2006 9:31 pm
Forum: General Discussion
Topic: Rockwell T&C grinder
Replies: 40
Views: 10220

That picture is identical to my machine, which is also called a toolmakers grinder by Rockwell Delta. According to the catalog, it cal also serve as a tool grinder with the proper accessories. FYI, by loosening the nut on top of the column, the whole top assembly should rotate up to 45 degrees eithe...
by Russ Hanscom
Fri Dec 01, 2006 9:08 pm
Forum: General Discussion
Topic: How many members have a surface grinder?
Replies: 20
Views: 5625

I recently acquired a Rockwell Delta 6 x 18 toolmakers surface grinder. I had to find a shop with a really big surface grinder to touch up the flat ways; there were indications of uneven wear. Still getting used to it but I can see where it will be indispensible in some situations. According to the ...