What to Use for Firewalls?

[Captain Video]

Hey Battleaxe:
How much heavier is the Puck board than the foam core? Durability? Examples?

 

[BATTLEAXE]

The puck board is as light as any ply you would use just isnt as prone to breaking in a crash. I have some ply firewalls break just on a belly landing in the winter, the cold

 

[basslord1124]

I bought a $3 plastic dishpan from the Dollar Store once...made about 30+ standard size firewalls with it.

 

[Bricks]

I bought a $3 plastic dishpan from the Dollar Store once...made about 30+ standard size firewalls with it.

You spent HOW MUCH OMG must be something even cheaper.

 

[basslord1124]

You spent HOW MUCH OMG must be something even cheaper.

Yeah kinda similar to what @nerdnic did except I believe he used a plastic trash can. Sad thing is, I've only used one of them...it's on my Simple Cub and it's held up fine. Oh yeah, I could cut em out with scissors. At the standard firewall size they flex just a little so with that in mind, I would think it'd take a pretty hard hit to break it.

The only thing I would worry about is if the motor runs hot if it'd soften or melt the plastic which is something that 3D printed firewalls can face too.

 

[Zetoyoc]

Yeah kinda similar to what @nerdnic did except I believe he used a plastic trash can. Sad thing is, I've only used one of them...it's on my Simple Cub and it's held up fine. Oh yeah, I could cut em out with scissors. At the standard firewall size they flex just a little so with that in mind, I would think it'd take a pretty hard hit to break it.

The only thing I would worry about is if the motor runs hot if it'd soften or melt the plastic which is something that 3D printed firewalls can face too.

I thought about heat with my plastic firewalls but I think if you are running hot enough to melt or even soften the plastic you have much more serious problems. Melting temp for pla is near 180c. (356f). Even if you consider half of that safe to prevent softening prior to melting you are still running the motor way to hot. At 60c or 140f the glues and magnes in your motor may start to come apart or demagnetize and the oils in your bearing would be long gone at that point. So . Try not to run your motor hot enough to worry about the plastic melting

 

[BATTLEAXE]

Yeah kinda similar to what @nerdnic did except I believe he used a plastic trash can. Sad thing is, I've only used one of them...it's on my Simple Cub and it's held up fine. Oh yeah, I could cut em out with scissors. At the standard firewall size they flex just a little so with that in mind, I would think it'd take a pretty hard hit to break it.

The only thing I would worry about is if the motor runs hot if it'd soften or melt the plastic which is something that 3D printed firewalls can face too.

When it comes down to it you spent $3 for 30 firewalls at $0.10 a piece. I would say that is a good buy if they work. Looking for other materials just to shave a few cents off per firewall is something a large corporation might do to increase profits on a million units. One less olive in the jar kinda thing. If it works keep using it, great tip.

 

[Merv]

I agree with @Zetoyoc, if your motor is hot enough to melt plastic, it’s way too hot.
With motors, ESC's and batteries, warm is ok, but if it is soo hot you can not hold it you hand for 20 seconds or so, it's too hot.

 

[basslord1124]

Yeah, I actually do my best to make sure my motors run as cool as I can.

I know some folks though may not pay attention to that and run em hot.

 

[CrazyFastFlying]

I 3D print my firewalls.

By the way, I have a 3d printing service. If anyone that doesn't have a 3d printer wants firewalls or anything they want 3d printed , I can do it for them.

https://forum.flitetest.com/index.p...uality-prints-shipped-to-your-doorstep.61902/