Charles_McG
Ciderwright
Several people at launches have asked how I repair my printed fins, so I thought I’d post a few pictures.
The Talos of my Black Brant 11a picked up a big fin chip at LDRS. I didn’t get a good picture of the chip, but you can kinda see it here.
These fins are PETG. I use this for repairs.
I kneed up the epoxy putty, the press it into the chip, push it into the infill as best I can. Then I shape it a bit. It gets tacky, so you can’t work it too fine. This time I used a pair of flat backed rulers, dampened, to press the wedge shaped, at least kinda close.
Once it’s dry, I file it down to the point where the base paint shows through. I find a file is faster than sanding - and I can use a brass brush to clear the file rasps.
I finish with a little sanding and shaping. The last photo shows the profile I was able to rebuild.
The Talos of my Black Brant 11a picked up a big fin chip at LDRS. I didn’t get a good picture of the chip, but you can kinda see it here.
These fins are PETG. I use this for repairs.
I kneed up the epoxy putty, the press it into the chip, push it into the infill as best I can. Then I shape it a bit. It gets tacky, so you can’t work it too fine. This time I used a pair of flat backed rulers, dampened, to press the wedge shaped, at least kinda close.
Once it’s dry, I file it down to the point where the base paint shows through. I find a file is faster than sanding - and I can use a brass brush to clear the file rasps.
I finish with a little sanding and shaping. The last photo shows the profile I was able to rebuild.
