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Trial fit some 5mm foam padding with a bit of hack and slash while in the helmet. It's a little snug, especially on the extremes of the zygomatic bones - so now I have it all worked out in shapes I can trace it onto 2mm foam and fit that in with nicer cut edges.
I hope your son grows into the same size as you, so that he can don the suit one day.
Taking photos with a fancy camera does not make me a photographer. www.nathantpham.com | Boston POTN Flickr | 5D3 x2 | 16-35L II | 50L | 85L II | 100L | 135L | 580 EX II x2
Brainstorming in the shed tonight but my brain wasn't cooperating much. Still, after a sit down and a few uppercuts, I managed to get the grey matter to work for a living.
1. Experimenting and making a DIY linear actuator for the helmet face plate.
2. Building tiny mounting plates for micro switches.
3. Micro switch mounted on the upstroke hinge. I've made them adjustable so I can tune their height once the actuator is connected.
4. Micro switch mounted under the downward faceplate hinge. This bracket will be re-made as one piece. I had to make it in two for prototyping to get the angles right.
5. The plotting continues. Linear actuation concept drawing. How to attach the actuator to the hinge.
wyattp wrote in post #17927504 I have been following this, and know that this is the Mk 3 or 4 (at least). So when do we have a family shot with current and all previous versions?
This is my third. I sold the fibreglass one and gave the cardboard one to a mate.
For the under armour tech around the arm and shoulder - a few bits and bobs from around the shed plus a small internal compression spring from Bunnings and a shocky magically appears.
Now to make fifteen more.
Also bought a fish-weighing scale for fifteen bucks to measure the force on the faceplate hinges. Will help me calculate the strength of motor needed to drive my linear actuator.
Worked out a rough linear actuator for the faceplate hinges with more junk laying around in the workshop. It works good enough for the bush as they say.
Now to make a prettier, more slim-line one. I can find threads three times as aggressive and thus move the hinge a lot faster but you get the idea.
I've measured the pull on the hinges now and it's around 2.1kg. All I have to do is find a motor small enough, strong enough and fast enough to turn the chosen thread. There's a bit of physics involved trying to work out torque required and the speed needed to pull and push the nut the required travel, but I'm sure a boffin will step forward and assist where my brain chooses to exit the aircraft.
I'm sorry I haven't been able to do much on the suit the last few days. I'm just bloody exhausted.
My work shifts and baby duties at home are not very Iron man friendly most of the time. I'll try to get some more done during my break at the end of next week. (If you could call it a break...)
I threw it back together today with all the work so far and took a few motivational shots for your entertainment and my focus.
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