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Random slightly cool stuff you built but not worth its own thread, thread


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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 :roll:.

If in doubt, make it bigger. 

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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.

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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.

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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 possibleIMG_20201116_122150149.thumb.jpg.b1e0a0e35eb510639fd9beb6e7035846.jpg

About 900 MPa on the liner wall

 

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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?

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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 

20190822_144511_1.gif

now you can convert it to a two stroke sewing machine for the mrs.

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  • 3 weeks later...

Before anyone freaks out yes its a expensive norbar wrench but its been on production line for a few years and would no longer hold a calibration this was the perfect retirement for it.

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