Posts made in May, 2012

Titanium breather spiggott

Posted by on May 28, 2012 in News | 0 comments

small but devastating! Stuff like this is really fiddly but lovely to make, for some reason small titanium parts can look tricker than big lumps of the stuff in my eyes, but you can’t beat a right good pair of titanium spindles for tricksyness!

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M9x1.25 titanium crank case bolts

Posted by on May 26, 2012 in News | 0 comments

Here’s a thread you don’t see every day, M9 x 1.25. They are crank case bolts, Japanese bike manufacturers seem to have a bit of a penchant for them. The other fastners are race specification, i.e drilled for lockwire and the heads recessed, very tricky operation on bolts this small, there’s not much room for manouvre. The washers and castle nuts are 7075 alloy.

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Montessa lightweight and ultra lightweight swinging arm spindle

Posted by on May 24, 2012 in News | 0 comments

Now then here’s a thing, after my experiments at stripping the threads out of a 7075 alloy nut and failing miserably i’ve decided to test it on spindles. Obviously i’m not stupid enough to try them myself, so i have a willing crash test dummy who is going to fit them to his Montessa trials bike and try and break them!

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Triumph titanium components

Posted by on May 22, 2012 in News | 0 comments

Done. here’s what 7 solid days of titanium looks like, doesn’t seem much does it?! 3 of those days were spent making the nuts, if only grade 5 titanium came in haxagonal bar it would save about 70% of the time. As it doesn’t they have to be carved from round bar, often each face of each nut has two passes of the cutter, on larger nuts this can be up to 4 or even 5 passes, and up to 1 minute per pass, 6 flats on each nut – you can see how it mounts up. But hey, its titanium so we don’t mind! some of these parts are 7075 alloy, lovely stuff to work with, but not quite as clean as...

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Yamaha titanium wheel spindles

Posted by on May 18, 2012 in News | 0 comments

Oh what fun! drilling titanium is not the easiest thing in the world, it overheats easily so you have to flood it with coolant, but to make life more interesting the swarf clogs the flukes stopping the coolant getting down the hole and compounding the overheating issue. So, without centre fed drills (which i can’t afford and anyway my machinery wouldn’t support it), the way to do it is drill 1-2mm then withdraw the drill, clear the flukes, get lots of coolant up there and back in again, repeat 200 times!

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