[gregmary]

Last weekend I found some plans on the internet in PDF format for 3D foamy R/C airplanes. I thought it would be great fun to cut them out on the CNC. I have generated some tool paths for a couple of airplanes if anyone is interested.

One is for an F18 Jet and the other is for a Edge.

Greg

[cncadmin]

Sure upload them here in a txt file.

[joecnc2006]

Last weekend I found some plans on the internet in PDF format for 3D foamy R/C airplanes. I thought it would be great fun to cut them out on the CNC. I have generated some tool paths for a couple of airplanes if anyone is interested.

One is for an F18 Jet and the other is for a Edge.

Greg

Yea, can u upload them and also tell stock and tool used, I have been wanting to make one for my daughter, but just have not had the time, the F18 would be kewl also..

Thanks, Joe

[CNC Darren]

I have files for the f-18 and f-15 all finished layed out for 2x4' pieces of dow fan fold foam. The files are set up for a 1/8" cutter using sheetcam. The process i found to work good is open the PDF in adobe Illustrator export it as a dxf and then I check scale and clean up the drawing in Rhino and then on to sheetcam.
Shoot me an email for the files and i'll send them out.
Darren
[email protected]

[CNC Darren]

Just a quick question for you guys, What bit are you guys using to cut the foam? I have been using a single flute 1/8" bit but I have been having problems with the foam mealting and sticking to the bit. I have tried from 15-30 ipm and it still happens sometimes. using a 1/4" trim router for the spindle I havent tried slowing it down. I also have a dremel multi speed tool i am thinking about making a mount for and using that as it should have enought power to cut thru the foam.

Darren

[joecnc2006]

Just a quick question for you guys, What bit are you guys using to cut the foam? I have been using a single flute 1/8" bit but I have been having problems with the foam mealting and sticking to the bit. I have tried from 15-30 ipm and it still happens sometimes. using a 1/4" trim router for the spindle I havent tried slowing it down. I also have a dremel multi speed tool i am thinking about making a mount for and using that as it should have enought power to cut thru the foam.

Darren

You know if you could just make an attachment that would connect to the existing router mount and have a lead downward, and have elec. go through it to heat it up similaer to the Foam Cutting cnc's. You could make stock stand off's to raise the foam odd cutting bed.

Just a thought

Joe

[edge540]

Just a quick question for you guys, What bit are you guys using to cut the foam? I have been using a single flute 1/8" bit but I have been having problems with the foam mealting and sticking to the bit. I have tried from 15-30 ipm and it still happens sometimes. using a 1/4" trim router for the spindle I havent tried slowing it down. I also have a dremel multi speed tool i am thinking about making a mount for and using that as it should have enought power to cut thru the foam.

Darren

I have cut several 6mm Depron foamies out on my Haas VMC using a .050" drill bit (friction cut,more clog prone) or a .125 sintered carbide burr (from hobby shop)spinning at 7500. have to play w/ the feed (20ipm range) to keep from melting but I have had good results.

[CNC Darren]

heheh the idea already crossed my mind, i'm thinking of a soldering iron with the tip turned down in diameter.

Darren

[joecnc2006]

heheh the idea already crossed my mind, i'm thinking of a soldering iron with the tip turned down in diameter.

Darren

Kewl, like to see what you come up with. a milling foam cutter.

[gregmary]

I have been using a .125 dremel drywall cutting bit. They work bretty good as long as you move pretty fast and run the tool just above stalling out. I still get a bit of melting. I do need to clean the bit every few panels. On parts that come to a point you can see the foam pullinging into the point due to the minimal amount of material. If anyone has a better way, let me know.

Attached are some IGES files for a 3D faomy model of the EDGE. There are 4 files for four sheets of foam.

If you need tool paths let me know what kind of machine and I can gen 'em up.

Greg

[CNC Darren]

I tried a 3/16 carbide up sprial bit and it works very good! no melting at all running at 25ipm. got the F-15 cut today, assembly begins tomarrow.
Darren

[mredican]

Greg

Would it be possible to upload the "edge" file in DXF?

[gregmary]

Sure, I can upload the DXF file. I get it to you tonight when I get home.

Greg

[planekrazie]

Hey Guys,
Been a long time since someone posted to this thread. Does anyone have the cut files for the f-15 or f-18. love to have them. Also the .TAP files for the hydrofoam if anyone interested. ( NOT The Miss hanger one. I am still working on that one from the pdf files.)
Steve

[planekrazie]

Anyone here still?

[cwdance1]

I made my machine to cut out foam planes but so far have not cut out any. The problem for me is most of the free plans out there are in PDF format and I don't have a good way to bring them into my Turbo Cad program. Anyone got a work around for this?

Thanks
Terry

[gmfoster]

ghostscript and it related support programs will get you from PDF to DXF, The code isn't optomised but I have used it to take line art to DXF. In my case an engraving of a horseman on a rearing horse.

Ghost script is open soirce...


Garry

[planekrazie]

Yoo Hoo, Anyone still there cutting out planes? I am working on the hydroplane and wanted to see if anyone has beat me to it. I am having problems scaleing pdf to dxf and so on. What do you all do?
Steve

[Fodder1]

Hi,

I'd love to make the hydoplane and i thought i was going to get my mill going this weekend just gone, but there is something screwy with the gantry of the jgro. i can twist the gantry and make it move. it seems the bearing plates are not as acurate as i would like.......

Anyway once i fix that, i would love to build one of the hydros. Please post your experiances here.
This is one of the big resons for me making the mill in the first place.

So i can make more fun toy to play with!!!!!!!

CH

[planekrazie]

Same here. I got tired of cutting out by hand so I built my Router. I am having problems converting the pdf files to dxf and keeping sizes. Still working on that one. If I get it finnished Ill send you a copy.
Steve