/r/metalworking

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Your place to share metalworking projects, ask questions, and learn together!

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Welcome to /r/Metalworking, a place for hobbyists, students and professionals to discuss everything metal!


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r/Metalworking is not the place for self or company promotion.

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  • Low Effort Submissions / Lacking Context

  • Quality Content

    We want r/metalworking to be a source of high quality content related to metalworking. To achieve this we have some standards for submissions:

    All Submissons Should Have

    • An in depth explanation of the issue/problem

    • If mentioning gear or tools, properly describe, name, or attach photos of them

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    /r/metalworking

    656,300 Subscribers

    1 Comment
    2024/03/27
    05:47 UTC

    11

    Steel Tyrannosaurus rex belt buckle that I made

    0 Comments
    2024/03/27
    03:44 UTC

    0

    Repair steel shelf?

    We picked up this steel shelf second hand. It’s perfectly functional but some shelves have spots like the attached. Looks like a book may have been sitting on it/transferred some plastic from the cover (or caused the coating to rub off?). The area that is glossier (issue area) is smoother to the touch than the areas without issues.

    No clue what caused these spots but curious if any fix (even if partial). Note this shelving unit is “natural steel” material with a “lacquer” finish.

    2 Comments
    2024/03/27
    01:03 UTC

    1

    Safety of grinding galvanized steel

    Can anyone advise best safety practices for grinding letters stamped into a galvanized steel electrical box cover? I’m considering using a grinding drill-bit on the lowest speed setting.

    I have heard that the shards are mildly toxic so should this be done outside with eye protection and a respirator?

    Any tips would be appreciated.

    3 Comments
    2024/03/26
    22:59 UTC

    0

    Is this cast iron??

    I recently purchased an old house and I’m in the process of cleaning the vents, they had a very thick layer of dirt and corrosion. I originally thought they were cast iron but as I remove the build up it began looking coppery. Some of my friends think it might be zinc coated cast iron? Please help! I don’t want to tarnish or ruin the metal!

    4 Comments
    2024/03/26
    22:55 UTC

    2

    Need help with a ring

    I recently got married this weekend and to help with costs I ended up making a ring out of Damascus using a lathe. Etching went well, and then I polished the ring. It didn't take long for the polish to wear off, so a week before the wedding I sanded the rusty spots, re-etched, polished, and then added two thick coats of clear enamel. After three days the enamel has chipped and wore off in places. What would be a better option for a coating that I can do small-scale?

    5 Comments
    2024/03/26
    22:18 UTC

    3

    I am buying a chep tig welder.

    I am buying a chep tig welder and the specified duty cycle is 25% at 200A and 100% at 100a is this good for a home shop welder?

    5 Comments
    2024/03/26
    19:54 UTC

    25

    Finally finished my first blade!!!

    It's absolute shit!!

    I used a mixture of scrapyard metals and melt them into a 0.5cmx1cm Ingot. Whacked and shaped it with a hammer and a coal forge, and used a Dremel to remove barbs

    3 Comments
    2024/03/26
    19:46 UTC

    5

    How do i sand these from the inside out and efficiently

    18 Comments
    2024/03/26
    18:19 UTC

    1

    Air Permit Estimates

    Hello,

    I am trying find the total volume of metal that I might remove in my process to see what type of emissions control I will need. I am assuming that most of the cutting will be pipe with one square end and one beveled at 30 degrees, the pipe is 24" and .5" in thickness. That leaves me with each cut length being ~75.4in and the depth for square cut being .5" and for the beveled 1". My problem is I do not know how to make a good estimate of the kerfs, I plan on using the 260A and 260A beveled hypertherm nozzles 220439 and 220542. Also, please let me know if I am missing other info that I may need.

    2 Comments
    2024/03/26
    17:54 UTC

    7

    Best way to grind broken bit of screw?

    I work in a climbing gym and we often use GRK screws along with socket cap bolts to fasten climbing holds into the walls (w/ T-nuts).

    These screws break and we are left with what you see in the photo. So far we’ve been using angle grinders with disc to cut/flatten them.

    This however seems overkill and when they’re up high on the wall, would be nice to find a simpler solution. We carry impact drills so we thought maybe there is a burr bit that might work.

    Is there such a bit that can work to grind these flat? Or any better solutions?

    13 Comments
    2024/03/26
    17:21 UTC

    2

    Is there anything important I should know before buying a furnace?

    I intend to start making some random Knick knacks with scrap I come across, melting it down, welding it together and whatever

    I’m leaning towards devil forge 4kg full kit

    But what’s the difference between that and the 10kg full kit? Just bigger size for more melting?

    I notice the description of 4kg says copper and the 10kg says copper and aluminum

    Don’t want to buy a furnace that has limitations on what I can melt lol I’m a very very large noob so any help I’d appreciated

    12 Comments
    2024/03/26
    17:08 UTC

    2

    Best blade/wheel for cutting cast aluminium

    I recently got a fairly decent pile of cast aluminum guards that come off an old machine we replaced at work. I'm going to cast some pulleys and stuff with them but its all big pieces that won't fit in my crucible. I have access to a circular saw and angle grinder. Am I better off getting a wheel specific for aluminium for the grinder or buying a circular saw blade? The cast pieces are at most .5inch thick and noise level is somewhat of a consideration. Thanks in advance!

    6 Comments
    2024/03/26
    15:56 UTC

    2

    Making a mallet (question)

    I'm making an interchangeable mallet head and i'm wondering if i should have the thread going into the head or coming out of the head, what's the better choice and why?

    1 Comment
    2024/03/26
    14:00 UTC

    297

    Y'all like these fish?

    44 Comments
    2024/03/26
    13:33 UTC

    1

    Eye protection recommendations

    Just looking for some recommendations for eye protection while using a plazma cutter. Thanks

    3 Comments
    2024/03/26
    08:12 UTC

    3

    Roof Rack Side Rails

    I bought this rack from Sherpa Equipment Co. that goes over the cab of my Tacoma, and I am wanting to replicate something similar over the shell. I have several crossbars made of the same extruded aluminum on the shell already and I want to make a side rail like the front rack has to allow for a few more “floating” crossbars. I don’t need to cut out handles and logos like they have, just a few channels to mount the crossbars through.

    I got two ¼”x4”x6’ pieces of flat aluminum stock and I tried to cut out ¼” channels using a plunge router and a guide, but the router ended up slipping and resulted in less than straight channels. I am wondering if I should try building a better jig to cut down on the slipping or go a different route altogether. The router seemed to handle the material fine, so it got me thinking maybe I need to drill some ¼ pilot holes and try a table router instead. What do you all think?

    0 Comments
    2024/03/25
    22:49 UTC

    3

    Question for metal workers

    I apologize in advance if this is the wrong community, I am looking for a replacement clip for my flashlight but I want something visually enjoyable as well as functional. Any ideas?

    15 Comments
    2024/03/26
    02:02 UTC

    0

    Ideas for making this hand turn-able

    Some sort of knob used to exist here. It’s part of a camper and controls the ability to raise/lower the roof. I bought it off of someone who said the knob broke and they used vice grips ever since, which has stripped any threads that used to exist.

    I have a 3D PLA printer so I can create an aesthetic knob, but how can I attach some sort of metal here that I can connect the knob to?

    Should I learn to weld? Maybe weld a few nuts to it? Any non-welding alternatives?

    I tried to JB weld a few nuts onto it but that didn’t work. No idea what I’m doing here!

    9 Comments
    2024/03/26
    01:33 UTC

    1

    Spoons out of 440C

    Hello all, I’m a hobby woodworker that picked up a sheet of 440C stainless from marketplace with the idea of making some knives and blades.

    It was a sort of impulse buy since it was cheap, I later found out stainless is pretty difficult to temper (more so since I don’t have a forge and was thinking of makeshifting one).

    I have since thought of making some spoons from it - cutting with a handsaw for steel, cleaning up with files and making some wood moulds to hammer it into shape.

    Thoughts? Tips? Bad idea?

    7 Comments
    2024/03/25
    21:36 UTC

    1

    Ideas to seal/treat this area to prevent further rust?

    We have a small in-ground fountain in our yard that has been slowly rusting and chipping away. Can anyone here recommend a metal treatment that I can apply to prevent further deterioration? Thanks in advance.

    10 Comments
    2024/03/25
    18:38 UTC

    1

    Pulling my hair out here - This Slide is wobbly and I can't figure out how to tighten it - I can tighten the actual Slide with the three Set Screws but the problem lies with the Slide's Lead Screw under the Slide I think

    3 Comments
    2024/03/25
    14:16 UTC

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