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 Posted 9/5/2019 8:50:38 AM |
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Supreme Being
 
Last Login: 4/6/2024 5:28:59 PM
Posts: 1,684,
Visits: 5,334
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| Thanks buddy, good to be back. I had to go to South Carolina this past weekend so I'm behind where I wanted to be. But still plugging along. Hopefully we'll have a drivable, although far from finished, car by this time next year.
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| Posted 9/8/2019 4:08:42 PM |
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Supreme Being
Last Login: 4/6/2024 5:28:59 PM
Posts: 1,684,
Visits: 5,334
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Moving right along, next section milled. It includes the front wind shield and the start of the side jet air intakes.
Starting the next section, which will include most of the cabin doors and the front of the actual side jet air intakes.
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| Posted 9/8/2019 7:10:54 PM |
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Has NO LIFE!!
Last Login: 12/4/2023 11:08:55 PM
Posts: 3,232,
Visits: 5,166
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Looks like you are back in wicked mode.
Looking good. vertigo
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| Posted 9/10/2019 1:47:01 PM |
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Supreme Being
Last Login: 4/6/2024 5:28:59 PM
Posts: 1,684,
Visits: 5,334
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While the CNC machine is working on the next section I spent a little time today sanding in the grooves on the fuselage. Something I learned from my first attempt is to finish the foam before adding the protective epoxy resin covering. It will make for much easier finishing work.
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| Posted 9/10/2019 3:06:13 PM |
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Junior Member
Last Login: 7/15/2021 8:35:20 AM
Posts: 63,
Visits: 271
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Looks great!!
Can you do me a favor? Next time you have your CNC-Router running, would you mind checking how many decibels loud your machine is???
I'm trying to figure out if I really need a high-power router or spindle to mill through foam... Do you have any suggestions?
Thanks!
-Waz
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| Posted 9/10/2019 6:42:47 PM |
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Supreme Being
Last Login: 4/6/2024 5:28:59 PM
Posts: 1,684,
Visits: 5,334
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Can you do me a favor? Next time you have your CNC-Router running, would you mind checking how many decibels loud your machine is???
I'm trying to figure out if I really need a high-power router or spindle to mill through foam... Do you have any suggestions?
I don't know how to determine the decibel level, sorry. It's a home made machine using a standard router rather than the more expensive spindle. The router is a Mikita, which I chose specifically because it had the lowest noise rating of the top brands. Using just the router the noise level is not bad, but the amount of dust is crazy. So there needs to be a dust collection system. I'm using a shop vac for suction, through a dust deputy dust collection system. the shop vac adds significant noise to the process. If you could locate your vac outside or something like that then the noise level wouldn't be too bad at all.
As far as cutting the foam, the router I'm using doesn't even know it's there. It cuts it like nothing. So I can set my machine pretty fast with no worries.
You may want to look into CNC hot wire cutters. Advantage is no dust and not much sound. Disadvantage is fumes/smell and accuracy. I have done some hot wire trimming and find it can be hard to control. Too hot and it melts sections of the foam or makes too large of cuts. Too cold and you have a real problem.
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| Posted 9/11/2019 6:28:26 AM |
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Junior Member
Last Login: 7/15/2021 8:35:20 AM
Posts: 63,
Visits: 271
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Thanks for the good info!
Funny how (for me, personally) the sound of a router and cutting bit or lathe/mill/surface planer or even lawnmower is tolerable, but the noise and drone of a vacuum or dust collection system puts me over the top!
Thanks again!
-Waz
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| Posted 9/11/2019 11:16:37 AM |
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Supreme Being
Last Login: 4/6/2024 5:28:59 PM
Posts: 1,684,
Visits: 5,334
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Yep exactly. The drone is what gets you. And that's funny for me as I play the bagpipes. 
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| Posted 9/12/2019 6:44:46 AM |
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Junior Member
Last Login: 7/15/2021 8:35:20 AM
Posts: 63,
Visits: 271
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Haha!
Glad to hear your other hobbies are equally eclectic as building replica Batmobiles.
We can easily tolerate what we love doing. [insert wife/girlfriend joke here]
-Waz
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| Posted 9/16/2019 12:46:32 PM |
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Supreme Being
Last Login: 4/6/2024 5:28:59 PM
Posts: 1,684,
Visits: 5,334
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Next section milled. This probably makes the form most recognizable.
And the underside...…….
I wound up using the same method of splitting the body as I did on my last, larger version. I tried the vertical slice method I used on the side boxes before but these pieces were just to small and flimsy. Here's what it came out like.
Not good! And it takes so much time and material. Besides, you can't fiber glass the inside anyway because there would be no way to separate it from the mold. My solution will be to make this as the outside mold and then make a separate mold for the inside of the air intake. There needs to be an inside section because part of it is the body of the car that would be an open space into the cabin without the inside section.
Only two more sections to go on the main body. The next section completes the cabin and the last section finishes the rear of the body.
THEMAN, I'll post those roll bar measurements in your resource thread soon. You are right, the body section does widen a little by the time it gets to the roll bar.
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