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4/20/2018 Metal Shop Meeting
#1
We have a new vice(vise). "The jaws are so fucking sick"



Hopes for the future of the shop space:

- Bench space, dedicated welding table thats clear, ventilation, outlets.



- Approachable, organized,



- Good material flow, good clearence



- Seriousness



We decided that we needed:

- 24in side tables (rich and ben and wouter)



- Welding curtains installed (curtains with conduit?) (ben)



- cement board floors(wouter, jaime)



- Compressor underneath the bench in the corner opposite the welding table possibly with insulation



- Ventilation (sealing off the space. providing ventilation ) (research that)



- Possibly fume sucker



- Argon (Wouter)



- Lighting



You can reply below to discuss anything additionally or something else related



edited vise spelling
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#2
I like it! I like all of it. A few questions for next actions:



1. What's the time table for the flooring? Or should we just start ripping into the side tables anyway? Wouter, are you gonna pick up some table materials?



2. I found some documentation on ventilation requirements for welding. OSHA requires 2,000 CFM ventilation per welder. That's overkill for our space, even with its confined dimensions, because we're not industrial welders joining half-inch steel plate. To put some other numbers to that requirement, moving 2,000 cubic feet of air per minute typically requires a 1/3 HP motor according to the bit of digging I've done so far. Other juicy numbers: Squirrel cage blowers (like the kind Andy already has for his kiln) have a more direct relationship between input diameter and CFM. A blower with a 4" output flange moves 250 cubic feet of air per minute. 2,000 CFM is a lot of air!



2a. Here's a pretty good, concise write-up on welding safety that I think would be useful for the site:



http://toolboxtopics.com/Gen%20Industry/Welding%20Safety%20-%20What%20You%20Need%20to%20Know%20about%20Welding%20&%20Cutting.htm



(I hate links with spaces in 'em, but what are you gonna do)



3. Wouter: A "vise" is the name of the clampy bench thingies in the shop. A "vice" is like coffee, alcohol, or bad movies: Things you know aren't great for you, but they feel good at the time so you do them anyway. I enjoy it that you conflated the two here. I think vises are one of my vices.



I'm excited.
  Reply
#3
RepairPublic post_id=31 time=1524504766 user_id=68 Wrote:
I like it! I like all of it. A few questions for next actions:



1. What's the time table for the flooring? Or should we just start ripping into the side tables anyway? Wouter, are you gonna pick up some table materials?


I got enough cement board for 240 sq ft. I believe jamie and I will install it sometime this week.
Quote:
2. I found some documentation on ventilation requirements for welding. OSHA requires 2,000 CFM ventilation per welder. That's overkill for our space, even with its confined dimensions, because we're not industrial welders joining half-inch steel plate. To put some other numbers to that requirement, moving 2,000 cubic feet of air per minute typically requires a 1/3 HP motor according to the bit of digging I've done so far. Other juicy numbers: Squirrel cage blowers (like the kind Andy already has for his kiln) have a more direct relationship between input diameter and CFM. A blower with a 4" output flange moves 250 cubic feet of air per minute. 2,000 CFM is a lot of air!



2a. Here's a pretty good, concise write-up on welding safety that I think would be useful for the site:

https://techcrunch.com/

http://toolboxtopics.com/Gen%20Industry/Welding%20Safety%20-%20What%20You%20Need%20to%20Know%20about%20Welding%20&%20Cutting.htm



(I hate links with spaces in 'em, but what are you gonna do)

Cool thanks for the research. Itd be cool if we could get something thats up to osha code.

What do you think about mounting a fan in the window, and then having a hood above the window? https://www.ebay.com/itm/115-volt-fresh-...Sw6ctaz2yb
Quote:
3. Wouter: A "vise" is the name of the clampy bench thingies in the shop. A "vice" is like coffee, alcohol, or bad movies: Things you know aren't great for you, but they feel good at the time so you do them anyway. I enjoy it that you conflated the two here. I think vises are one of my vices.



I'm excited.

*fixed spelling, thanks.
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#4
The cement board is awesome!!! Nicely done!



That's a hefty fan. We could definitely make that work somehow, though I have a couple concerns: 1) That sucker's bound to be loud, and 2) Direct-mounting that to the wooden window frame would create a lot of vibration that might eventually break the glass. It might be more effective to fab up some reclaimed duct work to the window and mount the fan directly over the welding table, though we'd have to measure clearances.
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#5
RepairPublic post_id=33 time=1525221054 user_id=68 Wrote:
The cement board is awesome!!! Nicely done!



That's a hefty fan. We could definitely make that work somehow, though I have a couple concerns: 1) That sucker's bound to be loud, and 2) Direct-mounting that to the wooden window frame would create a lot of vibration that might eventually break the glass. It might be more effective to fab up some reclaimed duct work to the window and mount the fan directly over the welding table, though we'd have to measure clearances.


I think we can engineer a solution for whatever fan/extraction method we choose. We just need to figure out which one to get.



I almost think that something like this https://www.ebay.com/itm/Welding-Exhaust...SwaeFaiQ9E would be best and then we would just have to build the housing/ ducts/ filtering part?



If any of you think we should buy that I'll get it immediately. It looks like exactly the kind of blower we need and its leagues cheaper than alot of other fume extractors for welding that I've seen.



I was also looking at this blower fan https://www.ebay.com/itm/12-Extractor-Fa...Swe4ZZlSUD which isn't good for fume control but would be god for ventilation and possibly we could have that in addition to a smaller fume extractor.



I also found this ludicriously DIY cheap fume extractor build http://www.instructables.com/id/Welding-...Extractor/



What do y'all think?
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