heathrobinson
Part of things
Broken everything
Posts: 848 
Club RR Member Number: 111
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Apr 28, 2017 11:46:14 GMT
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Hi all.
Anyone know what timing chain guides are made from? The ones for my engine are made form unobtanium, so I'm going to have one 3d scanned and cnc milled. The best bet at the moment is Stanyl nylon 4.6.
Any thoughts?
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mk2cossie
Club Retro Rides Member
Posts: 2,954
Club RR Member Number: 77
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Apr 28, 2017 12:32:21 GMT
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Is this for the Cosworth v6? Burton power list some for the BOB, and Boost performance or XR4i spares list some I believe  |
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fad
Posted a lot
Posts: 1,781
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Apr 28, 2017 13:12:04 GMT
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With most of the cost in tooling and set up, get a run of them milled and sell on at modest profit to recoup your costs.
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Hi, apologies if I've missed the obvious - if unused original parts don't exist, what are you going to use as a pattern to scan? Not something I've been involved with but given the variety of parts available, would it be easier to buy something "meaty" and have it trimmed down to the size you need? Top marks for experimenting with new ideas!  |
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Apr 30, 2017 17:36:31 GMT
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Just ring a place that sells Nylon etc as that sound the right material to me.
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It will come in handy even if you never use it
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heathrobinson
Part of things
Broken everything
Posts: 848
Club RR Member Number: 111
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I don't feel too clever today, the bank holiday extracted a toll in brain cells, so apologies if I ramble or stop making sense. mk2cossie, it's for the BOA, the left hand ones are like poor quality wobbly children's play pony excrement. I've emailed all of them, but won't get a reply until after the bank holiday. I seem to remember Boost and Top Boss both being extortionate though. nomad,I have a decent one that I'm going to fit to the engine, but it could be scanned first. It's not too complicated a shape, and if I could get a few made up cheaply enough there's definitely a market for them.  The properties of Stanyl Nylon look the best for the job so far - High abrasion resistance, 280 degree odd melting point, good slipperiness. |
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steveg
Posted a lot
Posts: 1,565
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Can you get something like this 3D printed in the correct material ? I know little about it but know metal components can be made by fusing powder together with a lazer.
Saying that any half decent machine shop with CNC mills ought to be able to make some from a 3D model. I've just started working for an engineering company again and the only thing you have to allow for is that although you can model it you can't always machine it exactly the same especially if it's been moulded in the first place.
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fad
Posted a lot
Posts: 1,781
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Is that it?? I could 3D print that for you at home on my rig. I can do it in nylon no bother at all (though I'm wondering if copper impregnated might be better? Hmm... What temps does it normally see?) It would take a little while and a few iterations to get it right and some back and forth, so long as you don't mind testing each iteration and some posting things back and forth and sending me one to start with... But there's nothing in the shape that I can't knock out, it would just be a case of doing a 3D model of it that fits correctly, and then messing about with print settings and materials until we have something that works and lasts. I'd do it for cost, since it would be a good learning experience for me, and then I'll print to order for a small mark up to cover time after that if you wanna sell them to cover the outlay?
In fact, I have some bits and pieces I could build a 3D scanner out of at home kicking about... Just need to make a turntable and program one of my boards... Though that would take a little time, would be quicker for this if I just took measurements.
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Last Edit: May 2, 2017 9:07:28 GMT by fad
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