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Questions tagged [sheet-metal]

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House building idea: earth filled walls made of corrugated galvanised iron and reinforcing bars [closed]

There are lot of people on the Internet trying to build a cheap and sustainable house. Inspired by them I came with the idea of building external walls of Corrugated galvanised iron (CGI) and rebars ...
user1876484's user avatar
1 vote
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52 views

Desperately need help with insulation/hanging drywall in metal shed

A little background- I own a quadplex but, due to the insane COL in Florida, I'm currently housing 4/5 of my siblings and I need another unit for myself to live in. So I added this 20x30 steel shed to ...
Skyler Kovacs's user avatar
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2 answers
64 views

Creating a large thin-walled hollow cylinder/tube [closed]

I'm looking to create something like this: Structurally very simple, but the second point is stumping me, I don't know how to DIY it. Some material (wood maybe) cut into a circle. (5ft diameter) 2. ...
user1265125's user avatar
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2 answers
49 views

Best way to patch small holes in sheet metal (for optics) [closed]

I am aware this is not the most important thing but it just bothers me. The moron of a contractor who installed my sub-panel left the main breaker out (which I meanwhile installed back myself) and cut ...
divB's user avatar
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1 answer
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What is the trade name for this kind of sheet metal cutter?

Is there a common trade name for a sheet metal shear that cuts by removing a strip, so as not to deform/bend the sides of the sheet like tin-snips do? What are these things called:
KJ7LNW's user avatar
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1 answer
70 views

How to tidy up and reinforce a hole drilled in a sleeper [closed]

I've just drilled a 28mm hole through a sleeper to put through a water irrigation pipe. Now I would like to somehow make it tidy and hopefully also prevent the edges of the hole. I was thinking a ...
KMLN's user avatar
  • 3
2 votes
1 answer
1k views

Rules for cutting additional holes in an exterior panel body

I am looking to see if the NEC has any guidance on where you can cut a hole into your outdoor electrical panel. (To add a cable clamp). The existing pre-marked knockouts are either used or require ...
bwp8nt's user avatar
  • 125
-2 votes
2 answers
265 views

Most effective way to cut slots into sheet-metals

I need to cut two 1-2mm slots into the edging of some c channel What is the most effective way to make these cuts? Using a 1mm drill bit and making holes side by side does work but it's slow and doesn'...
David jones's user avatar
-1 votes
1 answer
85 views

Scythe blade warped while peening [closed]

I warped my blade while peening it. Several reasons could be the cause : it was my first time peening a scythe that scythe had never been peened, while used for decades, thus a lot of peening was ...
Vic Seedoubleyew's user avatar
1 vote
3 answers
3k views

Sheet Metal Screws for HVAC - TEK or ZIP?

I need to purchase sheet metal screws for two residential HVAC DIY projects. I'm assembling basic rigid round peices, reducers, elbows, register boxes etc. I'm wondering what the HVAC guys reach for ...
Richard's user avatar
  • 559
2 votes
2 answers
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How to cheaply seal a metal sheet roof done poorly

In the context of poverty, i.e. living in tin metal shacks etc. So it's all about damage control and not some fancy 6 step multi layer solution: If the roof sheeting is leaking a lot because of gaps ...
David d C e Freitas's user avatar
5 votes
4 answers
651 views

What's the best way to cut a circular porthole window into the sheet metal of a van?

I want to cut a 12" diameter circle into the side of my van to install a window. My current plan is cut it by taking a sufficiently sized drill bit, drilling a hole near the inside edge of the ...
ijustlovemath's user avatar
0 votes
2 answers
959 views

Cutting copper sheets with a Dremel

I need to cut 0.2mm thick copper sheets. I do not want to use a nibbler or snips because I need to prevent the sheet from being bent as it is cut. I want to use a Dremel 2050-N/ 11JA Pen-type Rotary ...
EddieP's user avatar
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3 answers
9k views

What material can I put along a sharp, thin metal edge?

I have some sharp aluminum sheet metal, about as thin as a sheet of paper. I need to put something on the edge to protect other items from being cut by the edge. This could be a piece of rubber that ...
Village's user avatar
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-2 votes
1 answer
2k views

How to join two pieces of sheet metal?

I have a piece of sheet metal flashing I would like to extend by about 6". Due to its installation, it would be impractical to remove it and put a new piece that is of the right size, so a ...
amphibient's user avatar
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3 votes
0 answers
1k views

Are there any special considerations when cutting powder-coated metal?

I have a thin powder-coated steel sheet which I'd like to cut into panels. I've never cut powder-coated metal before. Are there any considerations I need to make when doing so?
WackGet's user avatar
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3 votes
1 answer
4k views

How to fit a pvc window to a corrugated metal shed

I have a corrugated metal shed which i want to fit a pvc window. I am not so sure how should i approach to this. The shed looks like the one pictured below but there are 2 vertical perimeter channels ...
Ulug Toprak's user avatar
2 votes
2 answers
5k views

What thickness metal for ramp/walkway?

I need to construct an outdoor shallow ramp approx 4m long and 1.5m wide for a 1:12 gradient. I'm considering metal sheeting for the walkway rather than decking but I don't know what thickness of ...
Mr. Boy's user avatar
  • 432
2 votes
1 answer
562 views

How to cut 2-1/4" diameter hole in sheet metal box?

I have a sheet metal (galvanized steel) box on my roof that's currently protecting the return and supply ducts for my old package unit air conditioner. I'm replacing it with a split system, and ...
Bitbang3r's user avatar
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3 answers
3k views

How to make a reverse bend in a sheet metal box

I need to bend sheet metal in a box-like shape, but with one flap in the reverse direction as shown below: Currently I only have a simple flat brake, however, I don't see how to do this, even if I ...
Tyler Durden's user avatar
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1 vote
1 answer
179 views

Cut sheet metal in half?

I need to cut some stiff sheet metal for roofing trim and the problem is dividing larger sheets. For example, I might have a sheet that is 6 feet x 12" and I need to divide it in half. The problem is ...
Tyler Durden's user avatar
  • 6,907