This seat situation has really been bothering me and has caused me to jump feet first into the rabbit hole. I couldn't get the resin seats I scaled down from files for an RC T-6. The seat printed fine, but was too thin and fragile to use. I used the kit seats as a basis for more accurate seats that I created with plastic strip and wire. Although they looked acceptable, I was still bothered that I couldn't get the resin seats to work. I decided to try designing my own using a very simple design program called TinkerCad. How hard could it be? :o0
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TinkerCad is a very simple free online design program for creating your own printable creations. Over the course of 3 days, and several attempts at printing, I finally got a seat that I think will work. In the meantime, I found a photo of the seats in an SNJ in the National Naval Aviation Museum in Pensacola, Florida. My seat matches fairly well. I am getting some horizontal lines in the printed resin, which I think I can eliminate using different printer settings.
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1. SNJ at the NNAM. Good look at the seat backs.
I have also been working on the resin replacement engine. On my last model, I found adding the pushrods to be very frustrating. I figured out a method this time that really simplified the process. There were small indentations in the crankshaft that marked the location for the bottom of each pushrod. I used a drill bit to drill a small hole from the top of the crankcase down into the center of the engine. Thanks to these holes, I didn't need to be so accurate measuring the length of each piece of wire. I simply took each piece of wire and pushed them down into the hole, then pulled them up until they were snug against their place in each rocker arm. I brushed a little thin CA onto the base of each pushrod, and I was done. I plan to add some sparkplug wires after I paint the majority of the engine.
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1. Resin replacement engine
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1. Holes for pushrods drilled into crankcase
That's about it for now. Hopefully some more tomorrow. Cheers.