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Author Topic: Howard Boys 1/12 Lysander (50")  (Read 4669 times)
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ffscale
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« Reply #100 on: September 08, 2019, 07:45:33 AM »

Wonderful planning and execution of such a complex assembly - stunning work Mike.

Mike S
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Graham Banham
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« Reply #101 on: September 08, 2019, 11:18:13 AM »

Magnificent in every way, from the skill in planning/ execution to the flawless construction and the end product.

Superb: can’t wait for more Mike!
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danmellor
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« Reply #102 on: September 08, 2019, 01:13:50 PM »

Wot they said. That is inspiring and depressing in equal measure!

Dan.
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ZK-AUD
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« Reply #103 on: October 06, 2019, 01:35:23 PM »

Just to re-cap you'll recall my plan for a rigid internal framework.    In the end I decided to try it without, reasoning that by the time the 2 shells are joined with the internal doublers the shell would be pretty strong on its own,  and a bit of flex could be a good thing.    Also the wheels are pretty big on this model at 70mm diameter and they come down a long way,  so hopefully the spats won't be too vulnerable.

The undercarriage springing is a more complex version of what I did for my little KeilKraft Lizzie but with an elastic band or spring instead of a torsion system.  In fact the rubber band shown here will be replaced with an expansion spring due to the difficulty of  replacing bands once the wheel is in and the 2 sides are glued together.

At this point the half with all the gear in it is glued to the wooden stub that slides onto the carbon U/C spars.  The 1/4 Liteply wheel leg which carries the suspension is solidly glued to the stub and is reinforced by the 2.8mm square carbon which also acts as a stop for the suspension.

The internal doublers which both strengthen and provide glue surface are just moulded off the original form so they can't help but be right!
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Squirrelnet
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« Reply #104 on: October 06, 2019, 01:49:29 PM »

Great bit of engineering Mike. Looking at the pics I was worried about how you replace the band, the spring will hopefully solve that. Outstanding work
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danmellor
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« Reply #105 on: October 06, 2019, 04:51:47 PM »

Superb bit of engineering. This is already a stunner and it's only going to get better...

Dan.
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