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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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Sigh..I broke my Logan Shaper
I am making a set of fingers for my 24" DiAcro fingerbrake, out of
1.25" hotrolled steel plates, and decided to square the roughly bandsawed blocks, on the shaper. Being hot rolled..there is a thick scale skin and its rough on endmills and fly cutters. Plus the blocks may have been flame cut from a larger plate at the mill..the edges seem to have a faint flame cut edge..so there is a HAZ that needs to be gotten through. Ive got face mills..but the big Gorton has no power feed..and I hate face milling by hand on stuff thats gonna need a heavy cut Id tried a slab mill on my Clausing 8540..but for some reason..the table is rocking and I cant see exactly where..sigh..another Roundtuit to address.... With the vise..the 8" shaper is NOT capable of squaring a 6" block, so I pulled the support rail out from under the table and lowered the table down, using a thinner support rail to give me the smidge of room I needed. I set the stroke, travel etc..and let it run a couple cycles to check out everything. All a-ok So I set the feed per stroke on the dovetailed gizmo on the end of the crank and let her run. It was making a nice cut..and suddenly the link that goes between the feed dog mechanism on the feed worm and the dovetailed gizmo bent slightly and the rachet mechanism dropped below 2 Oclock..the link not being long enough.Before I could shut it off..it busted out one side of the dovetailed gizmo on the end of the crank. PLINK!!! The part apparently is cast iron. So I have two options...drill and tap, or drill and dowel pin and then braze, or make a new dovetailed gizmo from scratch. I do have the proper sized dovetail cutter (and if I were any good..Id use the shaper itself to cut the dovetail....shrug) What should I do? Try to pin and weld the old part, or make a new one? Buying one from Logan..is financially out of the question for me at this time. Should I hunt around for a proper piece of cast iron, or should I use nitrated silly putty for the new part? Im fresh out of unobtainium and the last time I did lanthanated titanium..the lathe caught fire. Second time in a year where I wished I had a bigger shaper..damnit There is a pretty nice Gemco 16" I might be able to get...hydraulic I think..but then..Id have to move the Rolls Royce out of the shop to make room. Sigh..what to do..what to do..... G Gunner, who is negotiating for a Albine miller "A prudent man foresees the difficulties ahead and prepares for them; the simpleton goes blindly on and suffers the consequences." - Proverbs 22:3 |
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