30-05-2018, 04:52 PM
John - I've managed to do it! I'm wondering whether trying to get the bottom part of the slot deeper with a vibrating engraving tool was the eventual cause, or a combination of everything people suggested about tweaking and pressing.
I couldn't reasonably do the oven thing - its covered in two layers of green paint and still full of oily nasties... might taint our food production for months to come. Weird that the little kitchen blowtorch thing didn't seem to have effect though. Perhaps the heat wicks away into neighbouring metal too quickly.
Have bought copper grease, Colin!
I couldn't reasonably do the oven thing - its covered in two layers of green paint and still full of oily nasties... might taint our food production for months to come. Weird that the little kitchen blowtorch thing didn't seem to have effect though. Perhaps the heat wicks away into neighbouring metal too quickly.
Have bought copper grease, Colin!