started sharpening the points of the lugs (thanks dave bohm) and drilling holes for pins tonight. learned a couple lessons.
• here's background on pinning by Fred Parr. i ordered one of his pinning kits: a bag of nails and two of each drill bit needed.
• tonight i was drilling the pilot holes in a few real and practice lugs. the procedure is prick punch, then center punch, then drill with lots of oil. got the punches at Home Depot; the oil is just 3-in-1 oil. learned about punches from Paterek. they didn't make as big an indentation as i expected.
• i discovered stamped lugs are pretty fragile when i tried to prick punch one rather hard. the opening deformed a little...hopefully i'll be able to re-form it so a practice tube will fit. i bought three stamped lugs from Tom Palermo the other day--really lovely to begin with, great shorelines and windows. i've been practicing lug cutting and now drilling on them.
• i'm using tapered wooden dowels to hold the lugs for filing, so i used to dowel to hold the lug, clamped the dowel horizontally with the right spot facing up, and drilled down through the lug into the dowel. the 8" half round was perfect for cleaning up the holes.
• before calling it a night, i tested out the whole pinning setup. i used a short section i had trimmed from the end of the down tube to get it roughly the right length before mitering. drilled the pilot hole in the lug, drilled through that hole into the tube, deburred both holes, and tapped a pin in. the assembly felt really very strong, although looking back at it i realize the lug hadn't yet been properly reamed out for a good clearance with the tube. 'sposed to be at least a slip fit, but it was still kinda tough to slip that tube in there.
• i recall Fred mentioning something about pinning each tube in at least three places to keep it secure in three dimensions. this may be kinda tricky with the type of jig i'm using, which obviously doesn't allow access to all of the frame at once. i'm working on this one.