Rod M

iTrader: (4)

I have a TA04 saddle pack chassis, (similar to 414) but have made a large crack on one of the battery cutout beams (if that makes sense)

how do I repair the chassis? (properly)

WC

iTrader: (28)

If its not structural, I'd soak the cracked CF in superglue then
clamp it tightly in a vice. If there's a chunk missing, fill it with
epoxy afterwards.

Have done it to EvoIII and Yokomo plates, seems to hold up.

Rod M

iTrader: (4)

there is a chunk missing, is there any other epoxy type of material that would work?

rough512

iTrader: (12)

You can try filling up deep dents and small missing bits of layer with clear CA, then sand it flat and smooth when it dries.

B patterson

you could probably use some jb weld to fill the gaps. It wouldnt look quite as good but it should be realy strong just make shure you clean and rough up the area. I have used it to fix dog bones, arms and even a nitro engine block.

WC

iTrader: (28)

JB Weld is designed to etch into metals for a better 'weld', it
does not bond to plastics & polymers very well.

For CF just use normal epoxy glue as a filler. The 5 min stuff is ok,
but the 24 hr stuff is better.

oldnwise

iTrader: (6)

Try using a fibreglass patch. You can purchase a kit for around A$20 from a hardware that includes the resin, hardener and fibreglass cloth.

Make sure you use gloves also as messy stuff to work with.

Once dry you can sand back to a reasonably smooth finish and will be much stronger than using an epoxy glue. You can even paint if needed.

Kennedy

Buy an X-Ray. Problem solved