2 weird 2 live, 2 rare 2 die.
Foot pegs.
I've now got 12 pieces of 6mm ally bolted together and with all the edges milled so they are the same. Now to take some measurements and drill holes. If I can find a broach I'll make square holes so the pegs can't rotate (they will be folding so I think this matters). If I cant find a broach I'll fuckin make one. Piece of cake, I've done it before when I made some spring loaded bonnet pins for some old MG.
Originally Posted by sil3nt
Forum whore
Buckets....its where you learn how to make stuff......it's what I love about it.....good on you gatch.....
No8 Wire Extraordinaire
Post pictures. gee I just drilled a hole & hit the corners with a triangle file to make it square.
Don't you look at my accountant.
He's the only one I've got.
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mill a square hole and leave the corners rounded (then make the other bit to fit) is probably just as good at stopping rotation, and the lack of sharp corners would make it stronger too, course its a lot easier to get the other end to fit when you've got some CNC gear available
"A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal
No8 Wire Extraordinaire
yeah but when you've got a 10mm hole how sharp a radius are you going to cut a corner with that will make it square?
Don't you look at my accountant.
He's the only one I've got.
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depends on tolerances, 5mm cutter doing a 10mm 'square' hole will still provide plenty of rigidity if its a snug fit i reckon.
"A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal
No8 Wire Extraordinaire
Peg folds up in race, you stand on it. It's now a lever. Steel in Ally.
And this is a bucket. How close are the tols going to be when it's time to go home & yer finishing a perky?
Don't you look at my accountant.
He's the only one I've got.
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with tight tolerances you may gain strength by having nice round corners due to the lack of stress raisers (ever wonder why airplanes don't have square windows?), and if it were me I'd make sure they were still up to snuff, (actually if it were me I'd cnc that shit and the machine would make sure the tolerances are tight as)
"A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal
2 weird 2 live, 2 rare 2 die.
My cnc is my arm ha ha.with tight tolerances you may gain strength by having nice round corners due to the lack of stress raisers (ever wonder why airplanes don't have square windows?), and if it were me I'd make sure they were still up to snuff, (actually if it were me I'd cnc that shit and the machine would make sure the tolerances are tight as
I think a controller would probably shit itself if it had to deal with 700 microns of backlash in both x and y axis..
Fuck that. In the air force a few years ago, I spent 90hrs filing steel to make a little machine vice. I've had enough of filing haha. Now I have big angry machines to work for me
NOW, if I was going to make say a 1/2" square hole, I'd first drill a 13mm hole. Then take my handy piece of 1/2" assab and grind a wee radius (0.5 - 1.0 ish mm) on the edges. Shit if I was going to get carried away I might even grind it deeper further up for some clearance.. Then scallop the end so that only the very corners protrude, then line it up with my calibrated eye-o-meter and press it through the prepared 13mm hole.
And voila, hey presto, bobs your uncle, easy peasy japanesee and all that other jazz. We have square holes.
Yes, I've done this before, works in mild steel, so I see no reason it won't work in butter-soft commercial ally..
2 weird 2 live, 2 rare 2 die.
Managed to weasel my way into the machine shop this morning, to have another go at my bike while everyone else was working..
I put the ally parts to one side for now to try and get the rest of the sub frame tacked together. Which I did, at long last. Now next time I get a few hours I can just weld the bugger up, then get someone else to fix the bits I will probably bollix..
It looks pretty cool, plus its super light. Can't wait to see it back on the Spada once it's tig'd and painted..
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you're just not posting enough pics! so here's one of mine
10 points if you can guess what it is
"A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal
2 weird 2 live, 2 rare 2 die.
I'm living in the stone age... My machinery is old school, the tooling is only one step up from hand ground tool steel and I am STILL without a digital camera..you're just not posting enough pics! so here's one of mine
10 points if you can guess what it is
As for the CNC bits... The U shape piece maybe a tail piece bracket ? The other bit pinches up on something, anything to do with your electric bike motor voodoo ?
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yeh, don't think I could ever go without CNC now, for the bros, mikuni vac fuel pump mount, and shock reservoir clamp. Hoping it'l fit in real nice under the seat/tank join.
"A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal
2 weird 2 live, 2 rare 2 die.
Primo man. I've been trying to convince my boss that we NEED a nice 3 or 4 axis machining center. We have all these solid carbide cutters that are going to waste in our 1,400rpm (absolute max) mill.
It would certainly make all these home jobs I'm doing more fun..
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yeh depends on the work you guys do I suppose, but that is fucking slow for carbides, our CNC is slow and that still runs at 8000, bed speed maxes out at 2.5m/min, which is just enough
Got a mate who built a little CNC mill for his final year project, not really much to them tbh.
"A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal
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