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YYC: Slat for deck of CNC machine
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<blockquote data-quote="RobinHood" data-source="post: 6210" data-attributes="member: 696"><p>Hi Wes,</p><p></p><p>Question: is your dimension of 150mm wide critical? Reason for the question: hot rolled flat bar comes in 1/2" thick by 6" wide by 10' or 20' long. 150mm works out to about 5.90". It would save you $s if no cutting/machining were required on the long side of your parts.</p><p></p><p>Hot rolled has scale on it. So, again, how critical is your 7mm countersink depth? Are you just looking for the low profile M10 SHCS to lie flush or slightly below the surface?</p><p></p><p>Next: you specify 50.0mm spacing longitudinally for your holes. Problem could be, with that many holes in a row (13 in your case), that the last hole no longer lines up with whatever it bolts to because the errors in spacing are cumulative and, in the worst case, if all are on the high side, the last hole could be out by ~ 3/4 of a hole diameter. I would reccommend you reference each of the 13 hole triplets from a common reference point; ie: the left hand edge of your part. That way you greatly reduce alingment issues. </p><p></p><p>I have a milling machine that could handle the 950mm length.</p><p></p><p>Send me a pm and we can talk if you want.</p><p></p><p>Cheers, Rudy</p></blockquote><p></p>
[QUOTE="RobinHood, post: 6210, member: 696"] Hi Wes, Question: is your dimension of 150mm wide critical? Reason for the question: hot rolled flat bar comes in 1/2" thick by 6" wide by 10' or 20' long. 150mm works out to about 5.90". It would save you $s if no cutting/machining were required on the long side of your parts. Hot rolled has scale on it. So, again, how critical is your 7mm countersink depth? Are you just looking for the low profile M10 SHCS to lie flush or slightly below the surface? Next: you specify 50.0mm spacing longitudinally for your holes. Problem could be, with that many holes in a row (13 in your case), that the last hole no longer lines up with whatever it bolts to because the errors in spacing are cumulative and, in the worst case, if all are on the high side, the last hole could be out by ~ 3/4 of a hole diameter. I would reccommend you reference each of the 13 hole triplets from a common reference point; ie: the left hand edge of your part. That way you greatly reduce alingment issues. I have a milling machine that could handle the 950mm length. Send me a pm and we can talk if you want. Cheers, Rudy [/QUOTE]
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