CA Crunch during assembly, Help?

[Schtick]

I have finally gotten pretty good with CA finish, but every now and then when I assemble the pen I get what I think is a finish shatter or a "crunch" of the CA at the end of the pen.

How do I avoid this problem? I am using just CA is CA/BLO more flexible? It is really annoying to turn a sweet looking pen into one that I have to return ( to get the old CA off) because the CA shatters at the ends.


Also I am using the CA accelerator, does that make the finish more brittle?

Thanks Schtick

 

[David Keller]

Flush sand the blanks after finish but before assembly. Also, make sure the inside of the tube is clean and de-burred(a router chamfering bit is what I use).

 

[johnnycnc]

+1 on this

Flush sand the blanks after finish but before assembly.

 

[jttheclockman]

If an assembly feels tight when presssing then it more than likely will expand the tube and crack the finish. It is a feel thing after awhile. Also make sure you are pressing the parts evenly.