flyingbrick 9,543 Posted June 3 Report Share Posted June 3 13 hours ago, johnnyizegem said: I am used to design everything a little to strong, unless weight for example is critical. I design press brakes (LVD) for a living and we allways say, it's designed the LVD way when it's overkill. Better to use a few kilograms to much steel :p That's my motto too, but this is because I'm too dumb to understand what the correct amount of steel looks like . If in doubt, make it bigger. 3 Quote Link to post Share on other sites
igor 13,109 Posted June 3 Report Share Posted June 3 58 minutes ago, flyingbrick said: If in doubt, make it bigger. This is my thinking too. We have a joke in the office that 1 + 1 = 4 but we call it 10 to give us a decent margin of safety. 3 1 Quote Link to post Share on other sites
locost_bryan 24,977 Posted June 4 Report Share Posted June 4 The Colin Chapman mantra that a Lotus should only be strong enough to last until the end of the race, probably shouldn't apply to anything else. Lighten everything until it breaks, then make the replacement a little bit stronger, perhaps not the best design ethos. 1 2 Quote Link to post Share on other sites
tortron 69,278 Posted June 4 Report Share Posted June 4 Italian bicycles are the same tiny little non functional brakes, because why would you want to slow down in a race 2 Quote Link to post Share on other sites
ajg193 10,073 Posted June 4 Report Share Posted June 4 1 hour ago, igor said: This is my thinking too. We have a joke in the office that 1 + 1 = 4 but we call it 10 to give us a decent margin of safety. Magnesium extrusion container I designed has a safety factor of less than 2. Any more and it would have been unsafe to operate due to being too heavy. Had to use some pretty good tricks of engineering design to actually make it possible About 900 MPa on the liner wall 9 Quote Link to post Share on other sites
felixx 4,733 Posted June 4 Report Share Posted June 4 what does it do there Anton? Quote Link to post Share on other sites
Yowzer 36,251 Posted June 4 Report Share Posted June 4 Extrudes magnesium? 3 1 Quote Link to post Share on other sites
Popular Post P_Star 2,466 Posted June 4 Popular Post Report Share Posted June 4 Made some lamps. $2 Unkown Riley grille from the tards. Bit of a coke and tin foil clean to remove the worst of the grot. Dismantled LED fishtank lamp. Boom! Plus, sheep skull, found the other weekend tiki touring around the Coromandel. Dismantled bicycle tail lamp (stupid mounts broke, so sitting around). Bit of tape and a cork. Boom/Hail Santa etc 22 Quote Link to post Share on other sites
Muncie 11,507 Posted June 10 Report Share Posted June 10 That skull would be an ideal night light put it on a motion sensor next to your kids bed. 5 2 Quote Link to post Share on other sites
Popular Post Kerry-TGI 336 Posted June 13 Popular Post Report Share Posted June 13 Made myself a welding/tool trolley thing. Left enough room for the next size up gas bottle when I can afford it. The gas bottle holder is just a strip of sheet metal welded on one side with a tiny bolt through the other. Could do a draw or something on the top shelf, gonna use it for a bit and see what comes to mind 14 Quote Link to post Share on other sites
Popular Post gibbon 627 Posted Thursday at 18:34 Popular Post Report Share Posted Thursday at 18:34 Made a magneto tester out of a sewing machine. Wanted the variable speed function that my angle grinder based test rig couldn't provide 26 Quote Link to post Share on other sites
Lord Gruntfuttock 25,258 Posted Thursday at 19:36 Report Share Posted Thursday at 19:36 Brilliant. Well done... There's money to be made by being known as the guy who fettles magnetos. So many bike projects stalled cos they cant find/fix em... 1 Quote Link to post Share on other sites
crash 441 Posted Thursday at 21:28 Report Share Posted Thursday at 21:28 1 hour ago, Lord Gruntfuttock said: Brilliant. Well done... There's money to be made by being known as the guy who fettles magnetos. So many bike projects stalled cos they cant find/fix em... So, gotta ask....who does? Quote Link to post Share on other sites
Popular Post gibbon 627 Posted Thursday at 22:10 Popular Post Report Share Posted Thursday at 22:10 2 hours ago, Lord Gruntfuttock said: Brilliant. Well done... There's money to be made by being known as the guy who fettles magnetos. So many bike projects stalled cos they cant find/fix em... Interesting to know... I'm an aircraft mechanic so still deal in an industry where magnetos are considered state of the art! Unfortunately the sewing machine mag tester struggled to turn over impulse couplings so it was eventually superceded by a more powerful and slightly less silly polisher-based unit (that spins the wrong way for most mags hence the drive tapped off the back) 10 Quote Link to post Share on other sites
Lord Gruntfuttock 25,258 Posted Thursday at 22:27 Report Share Posted Thursday at 22:27 Yeah years ago there was an old bloke who was the go-to guy for old pre-war BSAs, vintage cars etc. He was renowned as a magneto expert and was flown to India to sort out Maharaja's old Rolls Royces etc. He'll be long gone now prob... [edit] Doug Banks? Quote Link to post Share on other sites
Corbie 4,026 Posted Thursday at 22:35 Report Share Posted Thursday at 22:35 4 hours ago, gibbon said: Made a magneto tester out of a sewing machine. Wanted the variable speed function that my angle grinder based test rig couldn't provide now you can convert it to a two stroke sewing machine for the mrs. 1 Quote Link to post Share on other sites
Popular Post felixx 4,733 Posted yesterday at 02:59 Popular Post Report Share Posted yesterday at 02:59 Forged up a squirrel roaster Roasting fork on one end. Billy hook on other 10 Quote Link to post Share on other sites
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