Re: adjustable square for SHS / box sections

Liste des GroupesRevenir à rc metalworking 
Sujet : Re: adjustable square for SHS / box sections
De : muratlanne (at) *nospam* gmail.com (Jim Wilkins)
Groupes : rec.crafts.metalworking
Date : 10. Feb 2025, 14:22:55
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vocum3$17i90$1@dont-email.me>
References : 1 2 3 4 5 6
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"Bob La Londe"  wrote in message news:voap8m$od6b$1@dont-email.me...
What he is doing is pretty coarse I think.  Could probably do it with an
old wood workers marking gage and a nail for a scribe.  Hundreds of
years of fine wood working was done that way with a story board to
repeat measurements from piece to piece for "production" work.
Bob La Londe
------------------------------------
I learned the old methods from a semi-retired Swedish cabinet maker in 7th grade. One friend's father was an architect, another's building a wooden sailboat, and mine was remodeling old houses, so we all paid close attention and competed with each other. The standards of accuracy were bright light leaking through gaps between the work and a straightedge or the blade of a square, and a press fit that holds together, both difficult with worn metalworking machines. In 8th grade we took Drafting and repeated the competition for top grades. When I learned machine design and construction I needed (and received) no instruction while working in the Drafting department. The lessons also helped when I went into CAD circuit board layout and the design of RF-tight enclosures.
Recently I figured out how and practiced cutting large wood beams with a pruning bow saw as smoothly and squarely as with a machine. That went faster than the attempt to align my bandsaw and conveyer table on rough sloping ground. The weight of the beams threw off the alignment.

Date Sujet#  Auteur
8 Feb 25 * adjustable square for SHS / box sections23Richard Smith
8 Feb 25 +* Re: adjustable square for SHS / box sections2Snag
8 Feb 25 i`- Re: adjustable square for SHS / box sections1Bob La Londe
8 Feb 25 +- Re: adjustable square for SHS / box sections1Leon Fisk
8 Feb 25 +- Re: adjustable square for SHS / box sections1Jim Wilkins
8 Feb 25 `* Re: adjustable square for SHS / box sections18Jim Wilkins
9 Feb 25  `* Re: adjustable square for SHS / box sections17Richard Smith
9 Feb 25   +* Re: adjustable square for SHS / box sections2Jim Wilkins
9 Feb 25   i`- Re: adjustable square for SHS / box sections1Jim Wilkins
9 Feb 25   `* Re: adjustable square for SHS / box sections14Bob La Londe
9 Feb 25    +* Re: adjustable square for SHS / box sections12Jim Wilkins
9 Feb 25    i`* Re: adjustable square for SHS / box sections11Bob La Londe
9 Feb 25    i +* Re: adjustable square for SHS / box sections2Richard Smith
9 Feb 25    i i`- Re: adjustable square for SHS / box sections1Jim Wilkins
10 Feb 25    i `* Re: adjustable square for SHS / box sections8Jim Wilkins
10 Feb 25    i  `* Re: adjustable square for SHS / box sections7Richard Smith
10 Feb 25    i   `* Re: adjustable square for SHS / box sections6Jim Wilkins
11 Feb 25    i    `* Re: adjustable square for SHS / box sections5Richard Smith
11 Feb 25    i     +- Re: adjustable square for SHS / box sections1Jim Wilkins
11 Feb 25    i     `* Re: adjustable square for SHS / box sections3Jim Wilkins
12 Feb 25    i      `* Re: adjustable square for SHS / box sections2Richard Smith
12 Feb 25    i       `- Re: adjustable square for SHS / box sections1Jim Wilkins
9 Feb 25    `- Re: adjustable square for SHS / box sections1Richard Smith

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