Originally posted by 338
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Laser - that is what the place I bought it from use nowadays - they just draw a shape on the screen and "print / cut it out" of the granite. Slow but really, really precise.
Overlap - Yep, I agree. If it is Conan or his dumber cousin(s) driving it the more overlap the better. However if you do the old "measure twice, cut once" even 10mm is plenty of overlap - that sewing machine (complete with a lump at the rear for cables and a taper at the front for some unfathomable reason - hence the odd shape) had a rubber gasket which would not have been more than 1/4" wide - which is why I resorted to a three stage job with a Dremel for the final finish. I reckon 40mm would have been well within the DeWalt's tolerance. The annoying thing is that it made that stunning desk / bench worthless for any other use - even a different sewing machine if it were smaller - fortunately it is not my prob anymore.
Perhaps John could consider a larger overlap as an option... although tape is cheap and Conan's mob deserve no better.
FWIW, I may be biased at the moment - "my Acer laptop doesn't work, the battery is flat and it won't charge" says a friend of my mums - coming around complete with an completely incorrect voltage IBM charger... sheesh - at least get the brands matched. Idiot. I am half expecting his wife / mistress / whatever next week with the same issue from the other mismatched laptop / charger.
A quick note - all masonry bits and drills are far from equal. I mainly use Sutton and Josco and they both prefer higher impact rates (say 2,000+ beats per minute) and higher speeds (I usually go flat out which is near to 1700 revs from memory) plus cutting fluid. My other bits (Frost, Irwin, B and D etc) are much slower and "impact off" is better. Strangely my old AEG and Bosch mains powered drills (i.e. big construction beasties) only do about 150 beats per minute so they are pretty useless for "new drill bit" granite cutting - they take a lot longer and leave a much bigger mess (optional chunks of granite included for free). If you do a lot of work with granite I would recommend a bit of a tinker with some of the newer "high speed / high no of smaller beats" battery drills and bits. Ditto diamond cutters - about 3 ice ages ago I "somewhat helped" a stonemason build a dry wall using local rock (granite with a fair bit of quartz). We used a huge, slowly rotating diamond saw and oceans of (recycling) fluid. The newer cutters would have ripped through the same stuff in a fraction of the time with less shattering (probably none).
Times change technologies I guess. Says he now slavering over the arrival of his new toy - which I just found out has shipped in between these posts today(!!!). Hopefully it beats hell out of my old "manual lever benchmark for great coffee".
Enjoy your cuppa - this is a great light roasted Colombian SO and it is going down like a good coffee liqueur (think 1970's Tia Maria, before they stuffed it up?) at the moment. Hopefully the Decent Pro will top it "in the cup" later this fortnight.
TampIt

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