Gabe
Sport
Am a board please help
Posts: 27
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Post by Gabe on May 27, 2022 0:53:55 GMT
Got the other half of the mig base mounted to foam board, and some formers laid out. What takes me the most time is taping together stuff and getting it laid out. 20220520_234522 by Burkeomatic, on Flickr If you have accecs to a plotter then print the plans out full size. i did that for my scout xl build and cutting took an hour and a half compared to 3 or so.
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Post by Burkeomatic on May 27, 2022 2:14:32 GMT
Got the other half of the mig base mounted to foam board, and some formers laid out. What takes me the most time is taping together stuff and getting it laid out. 20220520_234522 by Burkeomatic, on Flickr If you have accecs to a plotter then print the plans out full size. i did that for my scout xl build and cutting took an hour and a half compared to 3 or so. I don't but I have been keeping an eye out for one on gov deals. It would be way better.
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Post by Burkeomatic on Jun 1, 2022 3:14:58 GMT
Making progress. I have the H stabs for both the mig and the P-36 drying. Although the P36 one is sandwiched between osb and a table, so not much to look at. 2022-05-31_10-09-19 by Burkeomatic, on Flickr
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Post by bwarz on Jun 1, 2022 3:39:06 GMT
Finally putting in some time on the P40 and cut out the corrected formers and have it all drying right now. I find myself remembering why I wanted to build just the front to try something. What I have is a situation where I need to go from a convex curve on a skin to concave, then back to convex. I thought about just ixnaying the indented area on the nose, but where's the fun in that? So I'm thinking of removing the paper in the concave section and maybe gluing it back on after its formed and on the fuselage?
I had thought earlier about having the top and bottom separate and sanding a major taper on the bottom to meet in the valley - I just didn't think that would look all that good. I also just tried doing a concave in the middle of the part, but am quickly deciding that that is going to be a major pita.
Just looking for some ideas, thoughts, comments on being nuts or anal-retentive - whatever ya got...
No pics - being lazy and have not finished setting up my flikr account
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Post by Burkeomatic on Jun 1, 2022 4:21:16 GMT
Finally putting in some time on the P40 and cut out the corrected formers and have it all drying right now. I find myself remembering why I wanted to build just the front to try something. What I have is a situation where I need to go from a convex curve on a skin to concave, then back to convex. I thought about just ixnaying the indented area on the nose, but where's the fun in that? So I'm thinking of removing the paper in the concave section and maybe gluing it back on after its formed and on the fuselage?
I had thought earlier about having the top and bottom separate and sanding a major taper on the bottom to meet in the valley - I just didn't think that would look all that good. I also just tried doing a concave in the middle of the part, but am quickly deciding that that is going to be a major pita.
Just looking for some ideas, thoughts, comments on being nuts or anal-retentive - whatever ya got...
No pics - being lazy and have not finished setting up my flikr account
Like a bubble? What if you contoured the back half of what you wanted convex, then pushed it down like a bubble? Kind of make the inverted version of what you want, then press it down around the edges.
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Post by Burkeomatic on Jun 5, 2022 4:54:52 GMT
The business parts of the mig are together. Fired up the motors, they still turn the right way, and the blades look darn good for the amount of dirt and grass they have ingested. I am starting to like this airfoil on jets thing. I know it isn't much, but they fly so much better compared to the flat winged ones. 20220604_101957 by Burkeomatic, on Flickr
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Post by ratcheeroo on Jun 5, 2022 14:39:50 GMT
Yeah the super bandit is a flat wing, didn't like that too much.
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Post by bwarz on Jun 7, 2022 3:05:37 GMT
Working on skin development for the P40E (finally). It's coming along curiously well so far.
The predicament I was pondering in an earlier post. The goal is to wrap the skins a full wrap with one piece where possible
My development methods... Going one piece at a time, tape and fit a scrap piece of foam from center top to center bottom, wrap it as tightly to the formers as I can, and trace it up against the formers, mark the centerlines top and bottom front and back of the piece. Remove, cut, review, repeat. When I have a double former I then draw a line 5mm in from the cut edge and recut, refit, etc. I like the hands on building more than a 100% design on the PC (and I don't feel like relearning 3D cad )
The plan here is to slice the outer paper on the bottom (this is on the top) of the concave area and peel it up to a second line. Glue everything tight to the formers and then glue the paper back down. So far it looks like it will work out well. We will see in a few days (hopefully) how that works out.
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Post by Burkeomatic on Jun 7, 2022 13:12:39 GMT
Working on skin development for the P40E (finally). It's coming along curiously well so far.
The predicament I was pondering in an earlier post. The goal is to wrap the skins a full wrap with one piece where possible
My development methods... Going one piece at a time, tape and fit a scrap piece of foam from center top to center bottom, wrap it as tightly to the formers as I can, and trace it up against the formers, mark the centerlines top and bottom front and back of the piece. Remove, cut, review, repeat. When I have a double former I then draw a line 5mm in from the cut edge and recut, refit, etc. I like the hands on building more than a 100% design on the PC (and I don't feel like relearning 3D cad )
The plan here is to slice the outer paper on the bottom (this is on the top) of the concave area and peel it up to a second line. Glue everything tight to the formers and then glue the paper back down. So far it looks like it will work out well. We will see in a few days (hopefully) how that works out.
That probably beats my method. I have just been measuring (by doing the math) the distance around the formers, and that gives me the length of each end. Apparetly there is some way in fusion to build your model, export it to inkscape, and use the "unfold" command to make skins. I am not that good with fusion. I think I'll stick to old school.
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Post by bwarz on Jun 7, 2022 17:08:16 GMT
That probably beats my method. I have just been measuring (by doing the math) the distance around the formers, and that gives me the length of each end. Apparetly there is some way in fusion to build your model, export it to inkscape, and use the "unfold" command to make skins. I am not that good with fusion. I think I'll stick to old school. I prefer the old school method here coupled with the Inkscape for 2D modeling. I enjoy visualizing how things go together. And it is neat to see what shapes emerge when you wrap around some really odd formers (like skin C on the P36 when you get to it )
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Post by Burkeomatic on Jun 13, 2022 4:25:25 GMT
Alright, I planned on taking this bad boy out today, but I slept the whole time after church. I have a different flight controller in it, and I loaded up my last ELRS rx on it (they're as cheap as the flysky ones, have I mentioned that). My AIO only goes to 200mw, I am not putting my nice camera/vtx set up in it. I have a cheapie 600mw one that looks promising on the way in from banggood for 20 bucks. My goal with this plane is to make a FPV screamer for as cheap as possible. I had modded it for that STOL competition that I never did follow through with.... for reasons. So I had to unmod it. 2022-06-12_11-15-55 by Burkeomatic, on Flickr
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Post by Burkeomatic on Jun 15, 2022 1:00:19 GMT
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Post by Mr NCT on Jun 15, 2022 23:55:00 GMT
My first attempt at designing with Fusion 360. Yeah, I started simple.
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Post by Burkeomatic on Jun 16, 2022 0:39:46 GMT
My first attempt at designing with Fusion 360. Yeah, I started simple. Nice! It takes some practice. I have been able to make some small parts on it. You feel really good about yourself when you design something then print it out!
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Post by ratcheeroo on Jun 16, 2022 9:22:34 GMT
I watched a video on youtube yesterday of a guy that did a 10km long range FPV flight in a plane that looks almost identical to yours, in fact at first I thought it was your video but then I remembered yours was a twin and the one in the video was a pusher. Here it is here youtu.be/ILc1mJInAtA
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