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Pledge: Welding Equipment: Difference between revisions
From London Hackspace Wiki
current status, we have everything for one person to do basic arc welding
(need metal to practise welding, getting some rods and an apron) |
(current status, we have everything for one person to do basic arc welding) |
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==News== | ==News== | ||
[[File:Red_welder.jpg|thumb|right|Red welder]] | |||
Two electric welding sets have been donated. There is a basic red arc welder and a larger blue MIG (I think) welder. | |||
There is enough PPE for one person. (see list below) | |||
The small red welder is usable. There are some 1.6mm welding rods for mild steel in a plastic tube. Please close the tube, welding rods absorb moisture. | |||
[[File:Welding_screen_billy.jpg|thumb|right|Welding screen]] | |||
A freestanding folding welding screen has been constructed from fire doors. It can stand by the wood store without taking up a lot of space. It could fall over in some configurations and is very heavy. Please have at least two strong people move it. It needs a bit more work on the feet. | |||
The materials were free. It could be replaced with something better. | |||
At present to carry out welding, as well as using the welding screen, a suitable area should be cleared of anything that might get damaged or catch fire, about 8 feet in all directions from the welding position should do. | |||
Russ thinks the current welding screen is ok for some welding but possibly not adequate for teaching. Others think it will do fine. Trying it out a bit more may help reach a decision. | |||
There are some smallish mild steel bars and some thin steel plate on top of the red welder. | |||
It can be used for practice, the first attempt to weld a bar to a plate resulted in a very poor weld due to inexperience and because the plate melts before the bar gets hot enough. | |||
The welding equipment pledge hit it's target a few weeks ago but nobody has got around to collecting money. Mailing list discussion last stopped at a suggestion to talk to [[User:t0m|t0m]]. | |||
In the hackspace spirit of "don't complain, fix it" Billy produced the welding screen and [[User:Ajp|AJP]] sorted out the small welder and purchased the minimum PPE and consumables to start | |||
practicing arc welding. | |||
There are a few hackspace people with welding experience and a few people who would like basic welding training. | |||
Individuals could practice arc welding with the stuff we have at the moment. | |||
More scrap steel to weld would help. Enough PPE for a second person (mask, overalls, apron) would be handy. | |||
A welding mask that only goes dark when you start welding would make welding practice easier for beginners. | |||
[[File:Welding_smallpic.jpg|thumb|right|Welding practice]] | |||
Could we find some fire resistant fabric material that could be hung from hooks on the ceiling/some sort of ceiling curtain rail to use as a welding screen? | |||
It would be good to have some semi organized general metalworking training including welding. | |||
This could be an hour or two with someone competent covering basics like cutting metal (marking out, what sort of saw to use), joining metal together (drilling&bolting, tapping threads in screw holes, welding). | |||
To use the MIG welder we need to determine how to provide a supply of shielding gas (see options below). | |||
==The items== | ==The items== | ||
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=== Things we have already === | === Things we have already === | ||
* regulator for disposable gas bottles | * enough PPE for one person; blue overalls, gauntlets, a welding apron, a usable welding mask. | ||
* some welding rods and a bit of mild steel that can be used for practice with the red welder. | |||
* a welding screen made from firedoors (please be careful when moving it, it's really heavy) | |||
* regulator for disposable gas bottles for use with blue welder | |||
* spare tips etc. | * spare tips etc. | ||
* gauntlets [http://www.welduk.com/Details.asp?ProductID=604] | * gauntlets [http://www.welduk.com/Details.asp?ProductID=604] | ||
* angle grinder | * angle grinder | ||
* simple (non-automatic) face shield | * simple (non-automatic) face shield | ||
* a couple of bottles of gas (in the drawers under the mill) | * a couple of bottles of gas (in the drawers under the mill) (for use with blue welder) | ||
=== Things we are planning to buy === | === Things we are planning to buy === | ||
* [http://www.machinemart.co.uk/shop/product/details/ws1-standard-welding-screen Welding screen] - £105 | * [http://www.machinemart.co.uk/shop/product/details/ws1-standard-welding-screen Welding screen] - £105 | ||
Discuss further, this is smaller than the firedoor screen which Russ thinks isn't big enough and dosn't seem like great value for money.[[User:Ajp|AJP]]) | |||
* [http://www.welduk.com/Results1.asp?Category=49 Automatic head shield, variable] - £50 x 2 | * [http://www.welduk.com/Results1.asp?Category=49 Automatic head shield, variable] - £50 x 2 | ||
* [http://www.welduk.com/Details.asp?ProductID=374 Welding Leather Apron] - £9 x | * [http://www.welduk.com/Details.asp?ProductID=374 Welding Leather Apron] - £9 x 2 | ||
* '''Total Target''' - | * '''Total Target''' - £223 | ||
=== Extra things we may need / consumables === | === Extra things we may need / consumables === | ||
* metal to weld. Please keep a lookout for some random bits of mild steel for people to | * metal to weld. Please keep a lookout for some random bits of mild steel for people to practice with. Preferably not zinc plated due to toxic fumes when welded. | ||
* thicker welding rods. The 1.6mm rods donated by [[User:Ajp|AJP]] are a bit thin for some purposes. | |||
* Could we find some fire resistant fabric material to make a welding screen that hangs from the ceiling? | |||
* gas [http://spreadsheets.google.com/pub?key=tAo9x2FO_qy-e-_i0uhGspA&output=html price comparison] | * gas [http://spreadsheets.google.com/pub?key=tAo9x2FO_qy-e-_i0uhGspA&output=html price comparison] | ||
**[http://www.welduk.com/Details.asp?ProductID=89 small disposable] - approximately 5 mins use for ~ £15 | **[http://www.welduk.com/Details.asp?ProductID=89 small disposable] - approximately 5 mins use for ~ £15 | ||
