The coring templates are made from phenolic purchased from MSC industrial supply. Formica countertop material can also be used with good results. Thank you for watching.
Diese Idee ist echt gut, mir kommen da noch einige Ideen für einen Hauptholm aus Holz/CFK. Warum hab ich all die Jahre an diese Art der Konstruktion nicht gedacht? Nice days from Germany!
For the average flier probably not but for the competitive flier it is. The other advantage on this wing build I used 8 lb regular hobbyshop wood to reach a competitive weight. The leading edge sheeting is 1/32 balsa instead of 1/16. I still love the look of the classic I beam wing though. Thank you for watching.
@@paulbizard3493 Not sure of the exact percentage. If I remember it was usually around 25 to 30 percent. With control line it is also necessary to core the wings in this way for leadout clearance. Thank you for watching.
I am not him but reading about hot wire cutters - why I am here too. One rule of thumb I read was 30W per foot. So say 3ft would come to 90W. You van get cheap lab power sources from aliexpress etc. The one I was looking at was 30V and 10A, as power is Volts * Amps that comes to 300W ie plenty of reserve. Probably anything over 150W is plenty. Laptop power sources probably work too but you don’t get the ability to adjust per wire length. Lab power source (like looks on the video) has knobs for accurate adjustment.
@@gibstera5580 it might work, do the math. One thing I read was the actual cutting wire should be nichrome (NiCr) it can take the heat without weakening so it lasts way better apparently. Not expensive either I sourced some for about 7$ per 15 ft. This in Europe you might find even cheaper.
Your work is amazing! Please, after you finish the wing panels, how do you join them together? I have made two panels here but not sure of the proper way to finish the wing.
I use a drop jig. It's a 1/8 music wire that's heated with a torch and free falls through the wing. There is a video on my channel showing its use. Thanks for watching.
There is a vertical slot cut for a spar that I will cover in a future video. Both wings are glued together and fiberglassed in the center section and glued into the fuselage as one piece. Some designs have the wing removable. Thank you for watching.
can you show a weight comparison before cutting the holes out (whole foam core) and after to see how much weight reduction is there. Is the strength the same after cutting?
That is a good idea. I have another wing I'm about to do and I will make a point to include that information. I feel that the strength would be the same since the carbon spar carries most of the load.
Thank you for watching. I wasn't the first to develop this method of making foam wings but I feel I have come up with a few processes that have worked for me. The hobby like so many other things are developed by building on and improving other people's accomplishments.
The spar is inserted into a slot that is cut from the top to the bottom of the wing where the vertical foam spar is at the high point of the wing. I should have shown this step in this video. I will make a short video showing the fixture that cuts this slot. Thank you for watching.
Thank you for watching and commenting. For a competition airplane where weight is measured in grams every little bit helps. It does take extra effort and time but one reason these wings are cored is to allow clearance for the leadouts. I have built many R/C airplanes that do not have the wings cored.
Salve, davvero complimenti ha fatto un'opera d'arte, quella macchina taglia polistirolo ho provato a farla pure io ma non abbastanza efficiente, ho rinunciato. Mi piacerebbe tanto avere un vicino di casa Maestro come lei per imparare. Grazie del suo video e complimenti ancora. Ha un video dove fa volare questo modello che ha costruito?. Io sto facendo uno Spacewolker 1750mm apertura alare in balsa, è la mia prima costruzione
Thank you for your kind comment. I believe a more in-depth video on the foam cutting machine is in order to clarify the set up and adjustments. I will try to add some flying site videos in the future.
I agree about the amount of work but I feel I can make a more accurate wing with attributes I couldn't obtain otherwise. Thanks for watching and commenting.
Excellent content and who would have thought.. Great job and thank you for sharing.
Thanks for watching!
Wow, very good. What material did you make the ribs from?
The coring templates are made from phenolic purchased from MSC industrial supply. Formica countertop material can also be used with good results. Thank you for watching.
Diese Idee ist echt gut, mir kommen da noch einige Ideen für einen Hauptholm aus Holz/CFK. Warum hab ich all die Jahre an diese Art der Konstruktion nicht gedacht?
Nice days from Germany!
Thank you for watching.
Great work! Is the weight saved really worth it though?
For the average flier probably not but for the competitive flier it is. The other advantage on this wing build I used 8 lb regular hobbyshop wood to reach a competitive weight. The leading edge sheeting is 1/32 balsa instead of 1/16. I still love the look of the classic I beam wing though. Thank you for watching.
@@WinshipModels Impressive and good looking. How much weight, in percentage, did you remove ?
@@paulbizard3493 Not sure of the exact percentage. If I remember it was usually around 25 to 30 percent. With control line it is also necessary to core the wings in this way for leadout clearance. Thank you for watching.
Great video! Good information. I was just wondering what power source you are using for your hot wire cutter? Take care
I am not him but reading about hot wire cutters - why I am here too. One rule of thumb I read was 30W per foot. So say 3ft would come to 90W.
You van get cheap lab power sources from aliexpress etc.
The one I was looking at was 30V and 10A, as power is Volts * Amps that comes to 300W ie plenty of reserve. Probably anything over 150W is plenty. Laptop power sources probably work too but you don’t get the ability to adjust per wire length. Lab power source (like looks on the video) has knobs for accurate adjustment.
@heikkianttila6296 This is great information ! Thank you for sharing. I had thought about using an HO model train controller.
@@gibstera5580 it might work, do the math.
One thing I read was the actual cutting wire should be nichrome (NiCr) it can take the heat without weakening so it lasts way better apparently. Not expensive either I sourced some for about 7$ per 15 ft. This in Europe you might find even cheaper.
Your work is amazing! Please, after you finish the wing panels, how do you join them together? I have made two panels here but not sure of the proper way to finish the wing.
Placing them in the cradles they were cut out of is the best way as long as the centerline was laid out corectly.
@@WinshipModels thx for the reply.
This is awesome....one question...how did you get the hole for the fish wire straight through without angling thorough the wing
I use a drop jig. It's a 1/8 music wire that's heated with a torch and free falls through the wing. There is a video on my channel showing its use. Thanks for watching.
ua-cam.com/video/cM4Nn406-pw/v-deo.html
Wow Awsome!!
NICE! Now I know how to lighten my solid foam core wings! Thank you for sharing!
Thank you for watching.
After it is cored, since you don’t have “holes” for spars anymore, how do you attach to your plane?
There is a vertical slot cut for a spar that I will cover in a future video. Both wings are glued together and fiberglassed in the center section and glued into the fuselage as one piece. Some designs have the wing removable. Thank you for watching.
can you show a weight comparison before cutting the holes out (whole foam core) and after to see how much weight reduction is there. Is the strength the same after cutting?
That is a good idea. I have another wing I'm about to do and I will make a point to include that information. I feel that the strength would be the same since the carbon spar carries most of the load.
how thick the wire is there?
.015 they are old solid music wire flying wires for control line flying.
Thank you! @@WinshipModels
That's impressive 👌
Thank you for watching. I wasn't the first to develop this method of making foam wings but I feel I have come up with a few processes that have worked for me. The hobby like so many other things are developed by building on and improving other people's accomplishments.
@@WinshipModels cool, i appreciate it 👍
Where does the spar go?
The spar is inserted into a slot that is cut from the top to the bottom of the wing where the vertical foam spar is at the high point of the wing. I should have shown this step in this video. I will make a short video showing the fixture that cuts this slot. Thank you for watching.
I'm greatly enjoying the information. Thank you.
Note: the wing was NEVER in "Free Fall".
Thank you for watching.
What power supply do you use for your hot wire set up
I use a variac, which is short for variable A/C.
@@WinshipModels Do you have a link?
@@gary24752 I don't have a link. You might try a google search for one. The variable ac units I have were all purchased used.
Thank you so very much
Thank you for watching.
How you make the styrofoam hole ??
Thank you for watching.
ua-cam.com/video/cM4Nn406-pw/v-deo.html
well done...
Good to see how you cut foam but very little weight reduction a waste of time!
Thank you for watching and commenting. For a competition airplane where weight is measured in grams every little bit helps. It does take extra effort and time but one reason these wings are cored is to allow clearance for the leadouts. I have built many R/C airplanes that do not have the wings cored.
Silly comment…
Salve, davvero complimenti ha fatto un'opera d'arte, quella macchina taglia polistirolo ho provato a farla pure io ma non abbastanza efficiente, ho rinunciato. Mi piacerebbe tanto avere un vicino di casa Maestro come lei per imparare. Grazie del suo video e complimenti ancora. Ha un video dove fa volare questo modello che ha costruito?. Io sto facendo uno Spacewolker 1750mm apertura alare in balsa, è la mia prima costruzione
Thank you for your kind comment. I believe a more in-depth video on the foam cutting machine is in order to clarify the set up and adjustments. I will try to add some flying site videos in the future.
Awesome
Show !!!!!
Thank you for watching.
Too much work for the same weigh of balsa structure
I agree about the amount of work but I feel I can make a more accurate wing with attributes I couldn't obtain otherwise. Thanks for watching and commenting.