RCU Forums

RCU Forums (https://www.rcuniverse.com/forum/)
-   RC Rock Crawlers (https://www.rcuniverse.com/forum/rc-rock-crawlers-277/)
-   -   How to Cut Tire Foams (https://www.rcuniverse.com/forum/rc-rock-crawlers-277/5272041-how-cut-tire-foams.html)

Acs_guitars 01-15-2007 11:01 PM

How to Cut Tire Foams
 
1 Attachment(s)
When building a crawler you want your tires to be soft enough to grip the rocks, but still support the weight of the truck. There are several ways to modify the foams to do this… cut the foam in half, pie cut the foams, or do a star pattern as I am going to show. For me, this method yields the best results.

The first step is to use a marker and divide the foam in to 4 even sections.

http://image.rcuniverse.com/forum/up...52/Xv64445.jpg

Then 8...

http://image.rcuniverse.com/forum/up...52/Aw70265.jpg

Then 16.…

http://image.rcuniverse.com/forum/up...52/Dj11895.jpg

And finally 32...

http://image.rcuniverse.com/forum/up...52/Sl27740.jpg

Then mark a circle about ¼ to ½ up the side of the foam.

http://image.rcuniverse.com/forum/up...52/Hs96018.jpg

Then with a sharp pair of scissors, cut from the outside edge of 1 line to the inner diameter (you drew) on the next line over. Then from the next line back down to a point with the previous cut.
It should look like this…

http://image.rcuniverse.com/forum/up...52/Zq97213.jpg

Do this all the way around and it will look like this…

http://image.rcuniverse.com/forum/up...52/Pr26446.jpg

And you will have this left over.

http://image.rcuniverse.com/forum/up...52/Rq56298.jpg

This takes a bit of time, but will give you the extra bite on the rocks you need.[8D]

Anomie 01-16-2007 02:11 PM

RE: How to Cut Tire Foams
 
Another A+ how-to. Thanks for the info!

Rc EnthuSiasTs 01-16-2007 07:33 PM

RE: How to Cut Tire Foams
 
i was wondering how to get that pattern, thanks for the how-to!

Acs_guitars 02-11-2007 04:40 PM

RE: How to Cut Tire Foams
 
I am trying to get these how-to's as stickies..... So a little bump was in order :D

proteus1377 02-16-2007 10:09 PM

RE: How to Cut Tire Foams
 
Awesome how-to! This is great info considering a crawler is up in line for one of my next 2 RC builds.

aircruiser 03-02-2007 12:10 AM

RE: How to Cut Tire Foams
 
first off thanks for the write-up! It was a big help today.

Second, I did this to my moab 2.2s and use an xacto knife to all doing the cuts to moabs. I also got a tear in the foam and when I was putting it back in the tire it ripped in half so I stuffed some paper towel in the crack and hopefully it will solve the issue.

coy5840 03-20-2007 03:46 PM

RE: How to Cut Tire Foams
 
this is how I like to cut my foams.
http://i41.photobucket.com/albums/e2...J/DCP01994.jpg
http://i41.photobucket.com/albums/e2...J/DCP01993.jpg

andrewhendler 03-20-2007 04:54 PM

RE: How to Cut Tire Foams
 
coy5840, is that a "secret" chassis I spy. I cant pm you but I did spot it right?

Username: Unavailable 12-10-2007 05:20 PM

RE: How to Cut Tire Foams
 
Yeah what the hell is that in the background? it looks badass! PICS!!!!!

SFC K 03-20-2008 03:48 PM

RE: How to Cut Tire Foams
 
1 Attachment(s)
Here is what I used for foams. Team Trinity "Bomb Three" inserts. You also need Multi stage tire glue so the triple stage foams stay together. Careful as to what glue you use or the foams won't flex. What I like about this setup is that the tire flexes more and you get a solid tire patch to what ever surface you run them on. The foams are wide enough for sidewall strength too. Best way to describe it is an inner run flat system. You can see the difference in the size in the pictures.

madmax22 05-02-2008 04:49 PM

RE: How to Cut Tire Foams
 
how do you do this with black foams[:@]?

drevil 05-02-2008 07:22 PM

RE: How to Cut Tire Foams
 


ORIGINAL: madmax22

how do you do this with black foams[:@]?

You mean to mark the lines? How about a white or silver paint marker?

Spdfrk 09-20-2008 09:25 PM

RE: How to Cut Tire Foams
 


ORIGINAL: Acs_guitars

When building a crawler you want your tires to be soft enough to grip the rocks, but still support the weight of the truck. There are several ways to modify the foams to do this… cut the foam in half, pie cut the foams, or do a star pattern as I am going to show. For me, this method yields the best results.

The first step is to use a marker and divide the foam in to 4 even sections.

http://image.rcuniverse.com/forum/up...52/Xv64445.jpg

Then 8...

http://image.rcuniverse.com/forum/up...52/Aw70265.jpg

Then 16.…

http://image.rcuniverse.com/forum/up...52/Dj11895.jpg

And finally 32...

http://image.rcuniverse.com/forum/up...52/Sl27740.jpg

Then mark a circle about ¼ to ½ up the side of the foam.

http://image.rcuniverse.com/forum/up...52/Hs96018.jpg

Then with a sharp pair of scissors, cut from the outside edge of 1 line to the inner diameter (you drew) on the next line over. Then from the next line back down to a point with the previous cut.
It should look like this…

http://image.rcuniverse.com/forum/up...52/Zq97213.jpg

Do this all the way around and it will look like this…

http://image.rcuniverse.com/forum/up...52/Pr26446.jpg

And you will have this left over.

http://image.rcuniverse.com/forum/up...52/Rq56298.jpg

This takes a bit of time, but will give you the extra bite on the rocks you need.[8D]
An electric knife makes this job a breeze!

towtruckmikey 09-22-2008 10:24 PM

RE: How to Cut Tire Foams
 
Are you using memory foam? and are you cutting anything off the o.d.

This is a great post thank you and kudos.


All times are GMT -8. The time now is 06:45 AM.


Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.