HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Aug 29, 2012, 06:05 PM
Registered User
Evan D's Avatar
Charlotte, NC
Joined Jan 2004
6,042 Posts
Help!
Need foam possibly neoprene

I fly old timers (sounds like a 12 step program)

I have been using Trexler tires for many years (don't ask how many) and they are getting expensive IF you can find them so I've been searching for a sustitute. I would like to find some foam, I think neoprene, like some flip flop shoes are made of. My idea is to cut it approximately to shape, freeze it and chuck it in my drill press and shape it to approximately the shape of the Trexlers. The final size would be 4.5 to 5" diameter and 2.5" width. I want to use the Trexler wood hubs.

Anyone know where I can get the foam or have done this before?
Evan D is offline Find More Posts by Evan D
Reply With Quote
Sign up now
to remove ads between posts
Old Aug 30, 2012, 04:24 AM
An itch?. Scratch build.
eflightray's Avatar
South Wales U.K.
Joined Mar 2003
13,645 Posts
I have used a kneeling mat material for homemade tires.

By kneeling mat, (this is the UK), it was the sort for protecting the knees when gardening, or just on hard floors, (no, not asking the wife's forgiveness , she has one made from broken bottles for me ).
The mat was about 12" by 18" and about 3/4" thick, but I have seen various sizes and densities..

The one below is 3 3/4" diameter, made from two discs contact glueed together. Then spun in a drill chuck against very course garnet paper. The hub was an original plastic one.
If you fancy hub caps, those are cut from the bottom of a drinks can, (the domed section), and stuck on. The plane, my Dauntless, just under 5lbs, so the foam works quite well.

Worked for me.
eflightray is offline Find More Posts by eflightray
Reply With Quote
Old Aug 30, 2012, 07:47 AM
An itch?. Scratch build.
eflightray's Avatar
South Wales U.K.
Joined Mar 2003
13,645 Posts
Here's a couple of pictures of the sort of kneeling mats I use.

The holes cut in the square one were for a small models wheels, I used a cut down tin as a cutting tool, came out reasonably round.

For bigger wheels I draw an over size circle to cut out, and then true it up on a shaft.
eflightray is offline Find More Posts by eflightray
Reply With Quote
Old Aug 30, 2012, 09:08 AM
Registered User
Evan D's Avatar
Charlotte, NC
Joined Jan 2004
6,042 Posts
That's exactly what I want to do. I'm trying to find black mats or pads.
Evan D is offline Find More Posts by Evan D
Reply With Quote
Old Aug 30, 2012, 09:25 AM
Registered User
Ward Hagaman's Avatar
San Diego
Joined Mar 2003
2,317 Posts
There is a closed cell foam called Minicel that comes in a charcoal color.
Ward Hagaman is online now Find More Posts by Ward Hagaman
Reply With Quote
Old Aug 30, 2012, 09:28 AM
Registered User
Evan D's Avatar
Charlotte, NC
Joined Jan 2004
6,042 Posts
Available on-line or in a chain store? The internet is so handy, found a source with black 2" thick 24x48" sheet but at $55 is a bit pricey.
Evan D is offline Find More Posts by Evan D
Last edited by Evan D; Aug 30, 2012 at 09:34 AM.
Reply With Quote
Old Aug 30, 2012, 10:16 AM
An itch?. Scratch build.
eflightray's Avatar
South Wales U.K.
Joined Mar 2003
13,645 Posts
Quote:
Originally Posted by Evan D View Post
That's exactly what I want to do. I'm trying to find black mats or pads.
The wheels I made were not from black foam, but got that way with a little help from a permanent ink marker pen, and age.
eflightray is offline Find More Posts by eflightray
Reply With Quote
Old Aug 30, 2012, 11:16 AM
Registered User
Ward Hagaman's Avatar
San Diego
Joined Mar 2003
2,317 Posts
Quote:
Originally Posted by Evan D View Post
Available on-line or in a chain store? The internet is so handy, found a source with black 2" thick 24x48" sheet but at $55 is a bit pricey.
I noticed some small pieces on Ebay.
Ward Hagaman is online now Find More Posts by Ward Hagaman
Reply With Quote
Old Aug 30, 2012, 12:26 PM
Registered User
Evan D's Avatar
Charlotte, NC
Joined Jan 2004
6,042 Posts
That's what I need, do you remember how you found it?
Evan D is offline Find More Posts by Evan D
Reply With Quote
Old Aug 30, 2012, 02:08 PM
B for Bruce
BMatthews's Avatar
The 'Wack, BC, Canada
Joined Oct 2002
11,534 Posts
Evan, 24x48 will make one helluva lot of wheels. Perhaps split a sheet with one to three other folks of similar mind? Or if the idea works out, and I don't see why it shouldn't, then make up some extras and sell them to fellow Trexler fans as no-flat tires at a slight profit to aid in paying for the rubber? Heck, I don't doubt for a minute that you could find enough folks to buy them over a year or so that your cost for the wheels you keep would be zero $
BMatthews is offline Find More Posts by BMatthews
Reply With Quote
Old Aug 30, 2012, 02:23 PM
Registered User
Ward Hagaman's Avatar
San Diego
Joined Mar 2003
2,317 Posts
Quote:
Originally Posted by Evan D View Post
That's what I need, do you remember how you found it?
I searched Ebay for minicel and got this: $6 for a little piece

http://www.ebay.com/sch/i.html?_saca...minicel&_rdc=1
Ward Hagaman is online now Find More Posts by Ward Hagaman
Reply With Quote
Old Aug 30, 2012, 03:00 PM
Registered User
Evan D's Avatar
Charlotte, NC
Joined Jan 2004
6,042 Posts
Thanks! That led me to a nice piece, still large but better priced. 4" Thick and 12x24 in black.
Evan D is offline Find More Posts by Evan D
Reply With Quote
Old Aug 30, 2012, 10:08 PM
Registered User
Norm Furutani's Avatar
United States, CA, Gardena
Joined Oct 2004
1,074 Posts
All kinds at McMaster Carr http://www.mcmaster.com/#standard-cl...sheets/=j2xny2
Norm Furutani is online now Find More Posts by Norm Furutani
RCG Plus Member
Latest blog entry: Forget The Kids!
Reply With Quote
Old Sep 02, 2012, 12:13 AM
Registered User
Tallahassee, FL
Joined Sep 2009
1,605 Posts
I've shaped foam wheels on a metal lathe. Mount the foam on what ever is going to serve as the hub. Mount this on a shaft. Now mount the shaft in a lathe, drill press would work. Turn at moderate speed and use a hand held Dremel with a 1/2" sanding drum to shape the tire. Arranging some sort of rest to steady your hands helps. Works great.
Turner2 is online now Find More Posts by Turner2
Reply With Quote
Old Sep 14, 2012, 11:23 AM
Registered User
Evan D's Avatar
Charlotte, NC
Joined Jan 2004
6,042 Posts
Follow up... Got the foam and it took about 15 minutes to make two wheels. Wow was it easy. Cut a 4.5" square 2.5" thick, cut off the corners and then trimed the corners to get it semi round. Put a washer on a long bolt, stuck it through the approximate middle and chucked it in my drill press. Used a coarse foam sanding block and shaped it to a nice Trexler shape. Cut a concave area for the hub and then drilled out a 3/8" hole in the center and pressed my Trexler hubs through....

Step 2... fly it, fly it, and fly some more. Works awesome, no apparant wear and it doesn't collect dirt and sand. Asked peopple what they thought and they didn't even realize they were not blow up Trexlers until I told them...

Thanks for the help RCG people!
Evan D is offline Find More Posts by Evan D
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Sold Need to sale today if possible Rerun_40 Cars - Trucks and Parts (FS/W) 2 Jun 22, 2012 03:42 PM
Sold Need to sale today if possible Rerun_40 Cars - Cars and Parts (FS/W) 1 Jun 22, 2012 03:37 PM
Help! Need help on possible trade on1wheel01 Car Talk 23 Apr 23, 2012 07:11 PM
Discussion Want to cut foam wings- Need Foam Supplier Aerobotix The Builders Workshop 1 Feb 27, 2012 08:55 PM
Neoprene Foam rubber cording Bengtson Scale Kit/Scratch Built 8 Oct 15, 2003 07:11 PM