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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#41
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mount small to large shaft
Jim Wilkins wrote:
On Jul 24, 9:27 pm, "Michael Koblic" wrote: Jim Wilkins wrote: On Jul 23, 10:26 pm, "Michael Koblic" wrote: [attach thin plate?] Michael Koblic http://www.midwestfasteners.com/prod...ess/whatis.php That is cool! Michael Koblic http://www.harborfreight.com/cpi/cta...temnumber=3223 Don't have one, don't know how well they work, studs aren't rustproof, but it's a start. Has anyone tried them with other hardware such as stainless steel flathead screws? OK, as far as I can determine there have to be studs of definite shape to work with this (certainly with the HF one!). One would hope that one could weld other fasteners this way to flat pieces, e.g. short lengths of threaded rod. I wonder: Could one improvise this method? I guess a few Leyden jars would fill the bedroom... -- Michael Koblic Campbell River, BC |
#42
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mount small to large shaft
On Wed, 22 Jul 2009 10:20:20 -0500, the infamous "Karl Townsend"
scrawled the following: "Bob Engelhardt" wrote in message ... How much torque is involved? Makes a huge difference. 1/2 hp. servo. I think this is at 3000 rpm. Torque*rpm* factor= hp. Don't remember factor off hand. Really quick & easy, and easy to undo (unlike silver solder): a tack of weld on the end, bridging the shaft & sprocket. Quick & Dirty (tm). Don't like this idea. Roll pin or taper pin. If high torque. Whilst drilling for a pin, I assure the alignment by doing the tack weld above & drilling both at once. Bob May try a roll pin if adhesive bonding don't work. If both the shaft and gear hub are soft enough, could you drill and tap a couple split holes in the end of the shaft/side of gear, where the screw would engage both? It would give you a key of sorts and hold the gear in place at the end of the shaft. Maybe add Loctite. -- Mistrust the man who finds everything good, the man who finds everything evil, and still more the man who is indifferent to everything. -- Johann K. Lavater |
#43
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cleaning, was mount small to large shaft
On Wed, 22 Jul 2009 23:49:59 -0500, the infamous Don Foreman
scrawled the following: On Wed, 22 Jul 2009 18:51:42 +0000 (UTC), David Lesher wrote: Don Foreman writes: Parts should fit snugly. They should be reasonably clean but this isn't terribly fussy. A quick squirt of Brake-Kleen and a wipe or blow off is quite sufficient. I've always used starting ether for the final cleaning as the residue from other stuph can bite you back. Comments? Brake-Kleen isn't supposed to leave a residue. I use it for final cleaning of bearings after gross cleaning with varsol and acetone, which do leave residues. Yeah, I've used lacquer thinner, Brake-Kleen, and Berryman's B-12 carb cleaner as non-residue cleaners for decades now. All work great. -- Mistrust the man who finds everything good, the man who finds everything evil, and still more the man who is indifferent to everything. -- Johann K. Lavater |
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