View Full Version : cracks near the spacers
ss_11000
28th January 2006, 03:16 PM
hi all
has anyone ever had work cracking near the spacers or bushings.
if so has any one figured out how to stop it
mostly it is occuring with opalac acrylic.
have i been doing something wrong for this to occur:confused: ?????????
stirlo:D
Sprog
28th January 2006, 03:35 PM
hi all
has anyone ever had work cracking near the spacers or bushings.
if so has any one figured out how to stop it
mostly it is occurring with opalac acrylic.
have i been doing something wrong for this to occur:confused: ?????????
stirlo:D
Turn Opalac at high speed use a sharp skew chisel, watch your technique.
Light cuts , light sanding, do not over heat.
Sir Stinkalot
28th January 2006, 06:04 PM
Just check the amount of presure you are applying to the blanks by the nut on the mandrel. Only tighten it up enough to stop the blank spinning.
darley56
28th January 2006, 07:06 PM
hi all
have i been doing something wrong for this to occur:confused: ?????????
stirlo:D
Yes you did !! when sanding, you over heated the blank so he crak, you can save your pen by parting off the crak and adding another ring of diferent acrylic or corian, 2 colours on the pen look good, do the gluing with CA
ss_11000
28th January 2006, 08:45 PM
thanx for all the tips
stirlo
darley56
28th January 2006, 09:07 PM
thanx for all the tips
stirlo
You're welcome, show your pen when you can
darley56
28th January 2006, 09:09 PM
Just check the amount of presure you are applying to the blanks by the nut on the mandrel. Only tighten it up enough to stop the blank spinning.
If you tight the nut to much on your madrel you will end up with an oval pen but not prevent crack:D