Hot take: your welding prep is probably overkill

I see guys spending 30 minutes grinding a bevel on every single joint on a boiler tube sheet, but half the time the fit-up is so sloppy it doesn't matter anyway. After 8 years in the trade, I've found that a clean surface and a tight gap matter way more than a perfect 37.5 degree angle. Am I the only one who thinks shops push this prep stuff to sell more grinding wheels?

3 comments

3 Comments

jessec392mo ago

Right, because nothing says quality like a 37.5 degree bevel on a joint that's gapped wider than my ex's excuses.

craig.tessa2mo ago

Ditch the bevel gauge entirely. Just set your saw to 45 and sneak up on it. Test fit every pass, tap the joint closed with a hammer. If it gaps, plane the high spot - don't recut the angle. Sanding blocks are your friend for tiny adjustments. Got perfect miters that way on my last baseboard job. Took three tries per corner but zero gaps in the end.

finleycooper6d ago

Wait, so your solution to a bad cut is to plane and sand until the gap disappears? How is that any better than just using a bevel gauge and getting it right the first time? Honestly, that sounds like a lot of finesse and luck for a job that should be measured twice and cut once. Ngl, I'd rather spend 30 seconds setting a gauge than three trips to the scrap bin and a sore thumb from tapping. Tbh, "three tries per corner" sounds like a nightmare when I can hit it in one with a half-decent gauge and a steady hand. But hey, whatever works for you, I guess.