Hello again everyone
How does anyone make backpurge tubes and of what?
So far mine have been copper - 1/4" (6mm) tube - with 1mm (0.040") holes drilled in, as can be seen in
I borrowed a "Dremel" tool to do the drilling with a 1mm drill - I first centre-popped along the tube length then drilled. Does anyone use a pneumatic die-grinder for drilling? If so, how do you hold the drill? (my die-grinder had a 1/4inch collet). Simplest (?) would be to drill a
1mm hole into 1/4inch bar and solder the drill into the bar - then grip the bar with drill in the collet. ???Thanks in advance
Richard Smith