SNJ-3 Texan: 1/48 Modelcraft or Revell (Game time decision)

Started by George R Blair Jr · 232 · 1 year ago
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    Spiros Pendedekas said 1 year, 2 months ago:

    Solid progress and super looks, my friend @gblair! Excellent job on the 3D printed items!

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    John vd Biggelaar said 1 year, 2 months ago:

    Some good progress, George @gblair
    You are really getting there in 3D printing, how about less curing time to have the resin become less brittle.

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    George R Blair Jr said 1 year, 2 months ago:

    Hi Spiros (@fiveten) and John (@johnb). I am trying some reduced curing time to see if I can make the actual part less brittle. I am also getting some of the parts tearing apart while still in the printing process. I think this is because the parts are too thin to withstand the stresses of printing. More experiments today. Each seat takes over an hour to print, so the experiments don't move very quickly.

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    Eric Berg said 1 year, 2 months ago:

    I'm impressed how you are really diving into mastering 3D printing. An hr to print? Wow, I didn't realize it would take that long. Is it due to the file size, @gblair?

    Still baking to death? The weather sure is beyond weird everywhere this year, isn't it? Out here on the coast it can be 100º one day, then foggy and 62º the next. Go figure.

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    Tom Cleaver said 1 year, 2 months ago:

    @eb801 - Rain in Labor Day weekend in L.A. and temps in the 70s? Unheard of until this weekend.

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    George R Blair Jr said 1 year, 2 months ago:

    Hi Eric (@eb801): An hour-long print is relatively short as resin prints go. A resin bust that was about 2 1/2 inches tall took 6 or 7 hours. The footprint doesn't really change the length of the print, but the height does. Your print builds one layer at a time, .05mm per layer. Each layer takes about 30-40 seconds to print. Picture 1100 or 1200 layers, each taking 35 seconds, and you can see why it takes so long. There are a lot of settings that must be adjusted or your print may fail. I think of it like the old SLR cameras where you had to adjust 4 or 5 different settings to get a good photo. The problem is that the instructions that come with the printer don't tell you what the settings do, so thank goodness for YouTube. It really is a pretty cool process, when it works.

    Hi Tom (@tcinla): It was pretty dry when I was stationed in San Bernardino at Norton AFB. Our climate here in central Texas is starting to sound like California used to be. This summer was statistically the hottest ever recorded here. Temps still over 100 every day, and no rain for about 90 days. All of our lakes are drying up and are now well below 50% full. Maybe you can send some rain here?

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    Louis Gardner said 1 year, 2 months ago:

    George R Blair Jr (@gblair)
    This 3D printing sounds like it would be something neat to learn. I'm hoping to get either a 3D printer or a cutter for Christmas. I can imagine you are getting a bit frustrated with the process, but these seats and other parts you are making are a huge improvement over the kit parts.

    Hopefully you guys will get some rain soon. A 50 percent drop in your reservoirs is not good. Soon people could start experiencing their water wells drying up when the water table drops. Some years ago we had a major soft drink manufacturer come here to Central Florida and buying up land. Then they began bottling drinking water, and selling it commercially. People were worried about it drying up our local wells or possibly even causing sink holes if they took out too much water from the aquifer.

    Hang in there.

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    George R Blair Jr said 1 year, 2 months ago:

    Hi Louis (@lgardner): I suspect the problems that I am having is that I am asking the print file to do something it wasn't designed to do. The file is designed to print a cockpit in a really large RC airplane. Reducing the print size sometimes gives unexpected results, or sometimes it won't print at all. The problem with the prints is that reducing the print down 93% has yielded some extremely thin parts. When you scale the seat parts, levers and knobs, etc, you get something so thin that it isn't usable. I still think I can get them to work, I just need to get some prints that survive the cleanup, painting and assembly. Hopefully tomorrow. My daughter has a laser cutter that she really likes. Between the laser cutter and a 3D resin printer, I think the printer has many more applications to our hobby. I think the 3D printers are also less expensive.

    Water is getting very scarce here. We haven't been able to use outdoor sprinklers since May. We can still hand-water, but we can just barely keep the lawn alive. We continue to have daily temps 103-107, no rain forecast in the next week, with no relief in sight.

    Take care, buddy. Thanks for stopping in.

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    George R Blair Jr said 1 year, 2 months ago:

    I am trying to get the small parts of the cockpit done while I am trying to print some seats I can use. I have gotten some things successfully printed that I am using in the cockpit, including fire extinguishers, rudder pedals and linkage, throttle quadrants, and trim wheels.

    If you haven't used interior sets from Quinta and others, they are pretty cool. Basically they are resin prints on decal paper. You cut out the part you are adding, dip it in the water for a few seconds, and then add them to the cockpit. The instructions say that you should immerse them in water for only a few seconds, and they are serious. Anything longer 9 or 10 seconds and they float off the paper. They also recommend that you put a little superglue where the decals will go to help hold them in place, but I prefer to use something like Gator Glue. It holds very well and gives you a little time to position the piece. The Quinta set I am using is for a T-6G, so the front panel is a little different than in a T-6C. I had to do a little cutting and fitting with scissors to get the panel to fit, but it all worked fine.

    I hope to get everything done except for the seats. I plan to try to get the seats printed tomorrow. I have my fingers crossed. Thanks for stopping in. Cheers.

    5 attached images. Click to enlarge.

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    Spiros Pendedekas said 1 year, 2 months ago:

    Really excellent job on the interior, my friend @gblair! Looking forward to see it completed!

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    George R Blair Jr said 1 year, 2 months ago:

    Thanks, Spiros (@fiveten). Things are going slowly, but I am learning a lot about my printer.

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    John Healy said 1 year, 2 months ago:

    Great looking interior, George. Those throttles are awesome.

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    John vd Biggelaar said 1 year, 2 months ago:

    The interior is really getting to life, George @gblair
    Finding the right settings is crucial to get the optimum printing quality.

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    Eric Berg said 1 year, 2 months ago:

    Yes, as John Healy said, those throttles are awesome, George@gblair.

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    George R Blair Jr said 1 year, 2 months ago:

    Thanks, John (@j-healy), John (@johnb), and Eric (@eb801). Let's see if I can get the throttles off the supports and into the model without breaking the levers off.