Keith, "Calibrated Eye" applies in many situations. I'm a retired computer programmer and IBM has several utility programs whose names start with the characters IEB. Many sophisticated debug tools have been developed over time, but "IEBIBALL" remains among the most useful. All hail the experienced eye!
You're using a technique I was taught a long time ago to repair broken cast brackets. You can't just glue or weld brackets back together, the cracks were caused by stress and the metal or plastic is now ruined. Cast parts are strong when new, but age and hard use can weaken them. So you have to brace the bracket as you are doing here in order to reinforce it, otherwise it will just break again. In some applications I've had to cut off cast brackets and make new ones from steel which I welded together then welded to the supporting structure. Time consuming but cheaper then buying an entirely new structure. Old time mechanics are sometimes kidded about their techniques, (and attitudes), but the old saying "waste not, want not" still applies! Besides, it's more satisfying!
Keith. Watching you use a scalpel in this video brought to mind a question I had thought of some time back. I wondered why you use scalpels instead of hobby knife blades, such as Xacto knives/blades? Is it just personal preference or some “mechanical” reason?
And if your adhesive doesn't show up in time or is stolen by royal mail: ABS chippings/shavings in a small amount of acetone, leave for a few hours to form into a heavy goop and that should work well.
Good ol 5-minute epoxy. The right adhesive for... just about nothing. Plastics? Spotty at best, use the plastic-welder epoxy with loads of solvent in it to bite into the plastic. Metal? Maybe if you have a sanded surface, still not as good as JB weld or JB quick. Wood? Just use wood glue.
Keith, "Calibrated Eye" applies in many situations. I'm a retired computer programmer and IBM has several utility programs whose names start with the characters IEB. Many sophisticated debug tools have been developed over time, but "IEBIBALL" remains among the most useful. All hail the experienced eye!
You're using a technique I was taught a long time ago to repair broken cast brackets. You can't just glue or weld brackets back together, the cracks were caused by stress and the metal or plastic is now ruined. Cast parts are strong when new, but age and hard use can weaken them. So you have to brace the bracket as you are doing here in order to reinforce it, otherwise it will just break again. In some applications I've had to cut off cast brackets and make new ones from steel which I welded together then welded to the supporting structure. Time consuming but cheaper then buying an entirely new structure. Old time mechanics are sometimes kidded about their techniques, (and attitudes), but the old saying "waste not, want not" still applies! Besides, it's more satisfying!
In Canada our drain pipes are ABS and everybody has a bottle or five of ABS solvent cement laying around but it's usually a bright colour
Keith. Watching you use a scalpel in this video brought to mind a question I had thought of some time back.
I wondered why you use scalpels instead of hobby knife blades, such as Xacto knives/blades? Is it just personal preference or some “mechanical” reason?
I have a few of them . . . .
And if your adhesive doesn't show up in time or is stolen by royal mail: ABS chippings/shavings in a small amount of acetone, leave for a few hours to form into a heavy goop and that should work well.
Please watch part #2 . . . . .
Looks like a Hammond L100 series IIRC. (Used to repair them back in the day)
Good ol 5-minute epoxy. The right adhesive for... just about nothing. Plastics? Spotty at best, use the plastic-welder epoxy with loads of solvent in it to bite into the plastic. Metal? Maybe if you have a sanded surface, still not as good as JB weld or JB quick. Wood? Just use wood glue.