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From: Bob La Londe <none@none.com99>
Newsgroups: rec.crafts.metalworking
Subject: Re: Outdoor Welding
Date: Tue, 24 Jun 2025 13:27:03 -0700
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On 6/23/2025 3:14 PM, Jim Wilkins wrote:
> "Bob La Londe"  wrote in message news:103cf65$1gkqk$1@dont-email.me...
> 
> Interestingly, I welded on one jack one day using stacked weave tacks
> and it looks like it won't fall off.  Couldn't get vertical up or
> vertical down to work at all.  The next day I welded on the second jack
> with all the exact same settings and ran two 12 inch beads vertical up
> continuous.  Neither looks like a pro welded it I am sure, but I don't
> think either jack will fall off.  It was breezy both days, so MIG would
> have not worked at all.
> 
> Maybe it was a little breezier the first day?  I don't know.
> Bob La Londe
> 
> -----------------------------------
> 
> I like to divide weldments into manageable sections that bolt together, 
> and disassemble to modify, repair or replace. This saves me from 
> questionable out-of-position welds. The size limit for me is how large I 
> can accurately drill or mill after welding.
> 
> In building custom industrial machinery there was a lot of manual 
> alignment and drilling/tapping of bolt holes which is easy to do 
> reasonably accurately with a set of transfer punches and a Portalign 
> drill fixture (or freehand with practice). Taper and aircraft length 
> drill bits in 1/8" pilot and optionally tap and shank sizes can avoid 
> obstacles and span beam flanges. I've never needed a magnetic base drill.
> 
> Use bolts long enough to put the shank in the shear plane between 
> assemblies for full strength. I assume the bolts aren't tightened enough 
> to gain grip from friction between plates, and thus their shanks bear 
> the full load and they are reusable.
> 
> https://www.engineeringexpress.com/wiki/steel-bolt-edge-distance- 
> requirements/
> 
> https://site.alliedbolt.com/files/ShearStrength2.pdf
> 
> https://www.harborfreight.com/28-piece-transfer-punch-set-3577.html?
> 
> https://www.ebay.com/itm/145781854112?
> 



I'm not sure how that is relevant to welding on a complete jack assembly 
to a complete trailer assembly.  I guess I could have welded on flanges 
and then bolted the flanges together, or perhaps made up an assortment 
of plates and u-bolts and cut some holes in the deck to run the 
fasteners around the frame. I'll just have to live with my welds and see 
if they fall off.



-- 
Bob La Londe
CNC Molds N Stuff

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