Scratch Building your Own RC Planes Episode #4 - Part One "Cutting Foam Wing Cores"
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- čas přidán 4. 12. 2020
- This is the first of several videos (Parts) that cover the complete wing build process:
1. Cutting the cores
2. Drilling the wing tube sockets
3. Installing the wing tube sockets and false rib
4. Sheeting the cores
5. Making the lightening holes
6. Leading/Trailing edge installation
7. Cutting the servo pockets
8. Making and Installing the root and tip caps (part One)
9. Making and Installing the root and tip caps (part Two)
10. Making the Ailerons (Part One)
11. Making the Ailerons (Part Two)
12. Robart Style Hinge hole drilling and Installation
13. Installing Robart Style Pin Hinges
14. Making and Installing the Carbon Fiber Aileron Linkage
So, we have a lot to cover. I hope you enjoy the journey and pick up some tips. - Krátké a kreslené filmy
Finally, the part I never get quite right. Thanks for those tips. It might help make my foam wings better.
That’s about the best foam cutting demonstration I have seen yet. Model Aviation Magazine had an article years ago on using a router and pattern bit to make wing ribs for a constant cord wing. I made an Ugly Stick using that method. I like your method of creating your fuselage templates. I will have to try that sometime.
Finally. I was waiting for this ... :-)
My first styro foam wing was made in 1988 at control line airplane F2B. I remember it was not easy and few first styro block was damaged,.
The diameter, length of wire and voltage were experimentally determined.
Airfoil made of steel is needed to avoid stuck the wire in one place during cutting.
Good tips; interesting and cheap technique for good and strong wing.
After the styrofoam has been covered with the balsa sheet and the pipe is approximately 1/2 of its length installed, the wing girder is redundant :-)
Thanks for the kind words and background. I'm not sure what you mean by "girder"?
@@mikencrcf6018 I mean "wing spar" of course :-)
@@peterp.3530 oh, yes. A wing spar would be completely useless in this design. I do put balsa spars on top and bottom of the flying wing however. They form a "T" connection with the fiberglass and balsa. Its incredibly strong. But, those planes have a very short life span.
you could always put a small metal screen door screen cone on the end of your suction tube connected to a 1.5 battery positive terminal and the other end grounded to the metal table ... this will attract the gnats to the cone and the suction will pull them in
Hmmmm. Send a sketch of what your describing to Cpd551@gmail.com
I'll try that
Thank you. On the sockets what weight cloth
I use .7oz cloth for the sheeted parts. Anything from .5oz to 1.4oz would work depending on supply. .5 is hard to find and very hard to handle since its so fragile. 1 oz goes down very nice but its a tiny bit heavier. For most planes the difference is negligible.
I always use 1.4oz on the flying wing plane.
I use 4 or 6 oz for the wing tube sockets.
I made a FACEBOOK group for this build project and related projects. Feel free to join and post. "Foam Core RC Plane Builds and Repairs ".
Its much easier to navigate than this forum.
Does your foam supplier ship out foam?
Many distributors do ship. However, most require a minimum order size of about $200 to $250. That's a lot of foam and shipping is over $100. That's still much cheaper than buying and shipping single slabs.
I drive over an hour to pick my foam up. I buy about $200 worth and split it with several buddies in my area. More because of storage space than cost.
Kevin Baker, at Universal Foam has given me the best quotes for foam that I have seen so far. They have locations all over the country and hopefully, one is close enough to you to make a day trip of it.
Just search for 1lb polystyrene and you will see many distributors. I've reached out to 6 or 7 of them and Universal was my favorite. I explained to Kevin that I already buy from a location near me (which coincidentally is one of their distributors) and that I getting info for you guys. He gladly worked up some quote options and agreed for me to mention him in the forum.
I hope this helps. Visit the Facebook group RC Foam Core Wings for more details.
Hi you have your supervisor on the job, do a good job.?
What voltage and amp setting on your power supply?
Roughly 22 volts at avout 2.7 amps. It comes out to àbout 700 watts for the 40 inch wire bow I'm using. Of course a shorter wire means less watts. Again, the adjustable DC power supply is perfect, safe and cheap.
Go to Facebook group "Foam core rc plane builds and repairs" for easier correspondence and I can even send detailed photos.
The templates. How you make them
That's a great question. Join the FACEBOOK Group RC Foam Core Wings and I'll be able to post some photos and perhaps a short video to help you out.
HOW DO YOU GET IT FOR $5 DOLLARS !!!!!!!!!!!!!!!!!!!!!! I HAVE A DISTRIBUTION FACTORY WHERE I LIVE AND IT IS $150 DOLLARS A SHEET FOR 4" X 48" X96" SO HOW DO YOU GET IT FOR 5 DOLLARS UNLESS YOU KNOW SOMEONE ON THE INSIDE RIPPING OFF THE COMPANY FOR YOU / ???????????????????????????????
If you join the FACEBOOK Group RC Foam Core Wings, you will see where I have provided quotes and invoice copies to guys all over the country helping them find distributors. The average cost for a 4x48x24 is between 8 and 10 bucks. I'm not sure why your cost is so high. Perhaps the shipping cost that your distributor is forcing on you is the issue. Foam should not cost that much. Feel free to reach out to me and I would be glad to help you locate a better supply.
In addition, make sure you're not being told 150 bucks as a minimum order size.
Most places will have a minimum order size of $200. That means if you want 2 sheet, the price is $200. If you buy $200 worth, you start paying the actual cost of the foam. Not filling up the minimum order requirement. Keep in mind they are not a retailer who is geared up to sell small quantities.
Gather several guys and go in together. Not so much to meet the minimum, but more to help split up the storage, that's a bunch of foam.
I will add that jumping to accusations of impropriety don't help your case.