#metalworking — Public Fediverse posts

Thumb is getting there. Cut off the corners, flipped them around and welded them back on as reinforcements, now the whole thing looks more streamlined. I think it'll be strong enough without doubling up the thickness near the fangs.

If they break I'll do it :)

Also made two pins out of three. This is the dullest job in the world, drilling a 8mm hole through 25mm solid rod, but the pins I bought weren't long enough after some design tweaks. At least it's not stainless steel!

#DIY #ExcavatorThumb #Welding #Metalworking #Homestead #SalvagePunk #Drilling

[#TRADESHOW] The 25th #Shanghai #International #Lubricants and #Technology #Exhibition (Inter #Lubric #China) will be held from June 9 to 11, 2026, at Shanghai New International #Expo #Center. As a #leading lubricants #trade #exhibition in China, the #event serves the lubricants, #greases, #metalworking #fluids, and #surface #cleaning technology #sectors, bringing together #suppliers, #manufacturers, #business, and #distributors across the full #ValueChain. https://cnbusinessforum.com/event/25th-shanghai-international-lubricants-and-technology-exhibition-inter-lubric-china-2026/

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Teeth! Got some spare teeth for a spring-tooth harrow. So in theory they should be pretty durable.

Special challenge: Cutting curves with an angle grinder 😆

My tack welds did not withstand hydraulic gripping power and the teeth flew off at the first test, so I welded them on properly to try picking up a small concrete beam.

Clearly when its done I will need some practice with this new thumb as I picked up way too much soil with the beam. The thumb works though 🥳

Bunch more detail work to do, make holes for the other adjustment points, finish the pins, cut excess material off the sides and weld reinforcement pieces for the fangs. Maybe some serrated "back teeth".

#DIY #ExcavatorThumb #Welding #Metalworking #Homestead #SalvagePunk

If the holesaw has somehow wandered way off track, it's hard to re-center it where it is supposed to be.

But if you just tack a piece of tube where the hole is supposed to go, the holesaw can't wander anymore and will have no choice but to cut the hole inside the tube.

Afterwards it is easy to cut the guide back off.

#Welding #Metalworking #HoleSaw #Tips

Finally could resume work on the thumb after an unexpected shortage of welding wire. 😳

First job was to add in the connecting pieces between the two sides. A thick piece of flat bar at the top to leave space for the support leg when extended. And a box section to handle shear forces near the tips when grabbing an asymmetricl item such as a rock.

Wire brushed and finish welded the body of the thumb without distorting it too much.

Then I started on the adjustment holes for the sliding support leg. Welded in a reinforcement tube, which is a lot of work. It'll be a lot more holes to saw for the other adjustment points later. Perhaps I overdesigned it a little, but hopefully I'll get some use out of the adjustability.

#DIY #ExcavatorThumb #Welding #Metalworking #Homestead #SalvagePunk

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Yes, sir, the old fashioned way of making high quality products.

I was able to view a translated version by first enabling Closed Captions, then selecting Translate for the captions.

https://www.youtube.com/watch?v=POtXePLACQA

#Blacksmithing #Forging #Bladesmithing #Metalworking #Craftsmanship #GermanEngineering #IndustrialHistory #Steel #Bookbinding

[#TRADESHOW] The 25th #Shanghai #International #Lubricants and #Technology #Exhibition (Inter #Lubric #China) will be held from June 9 to 11, 2026, at Shanghai New International #Expo #Center. As a #leading lubricants #trade #exhibition in China, the #event serves the lubricants, #greases, #metalworking #fluids, and #surface #cleaning technology #sectors, bringing together #suppliers, #manufacturers, #business, and #distributors across the full #ValueChain. https://cnbusinessforum.com/event/25th-shanghai-international-lubricants-and-technology-exhibition-inter-lubric-china-2026/

#ExcavatorThumb progress:

Clamped and aligned the thumb sides with the help of two bricks that happened to be the right width, then tack welded the tubes on.

Next part was the adjustable support leg. Figuring out the length of both parts was easy, swing the thumb up and down, measure distance between pins and copy it to the two parts on the workbench.

Making the inner part slide smoothly into the outer took ages as I had to grind down the thickness of the entire outer surface, then polish it smooth.

Solved the problem of the outer tube having a seam weld inside by hammering on the inner one until it bowed inwards just enough to allow space for that seam.

Fits very nicely now and almost no play.

#DIY #MiniExcavator #ExcavatorThumb
#SalvagePunk #Homestead #Metalworking #Welding

Thumb update:

Made the thumb wider so it fits better between the bucket teeth, which required cutting new reinforcements. Cut the ones for the support leg as well and decided where to attach it to the thumb.

Then worked on the adjustable support leg. A cylinder each welded to the end of a box section. The lower fitting was easy, just an approximate half-circle with three shallow cuts of the angle grinder and then bend it back and forth until it breaks out.

The upper fitting having the added challenge of being narrower than the box section, so it got tapered a bit by cutting some wedges out and banging on it with a hammer.

#DIY #MiniExcavator #ExcavatorThumb
#SalvagePunk #Homestead #Metalworking #Welding

31-Mar-2026
Tracking the footsteps of #WestAfrica's prehistoric metalworkers
The discovery of a 2,400-year-old #metalworking workshop in Senegal provides new insights into the history of #iron production in #Africa.

https://www.eurekalert.org/news-releases/1122132

#science #archaeology

Building a gate the hard way:

https://www.youtube.com/watch?v=wtWeDcEkzYA

Found this very educational and well made.

#YouTube #Metalworking #Welding #Blacksmithing #Riveting

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q: can I harden small pieces of mild steel with a butane cooking torch?

a: yes

#diy #butane #metalworking #technically

Also got a doorbell. Made a little housing for it with a piece from the zinc scrap pile.

The wireless doorbell is pretty clever: Instead of using a battery and finding out it's empty because you missed a delivery, it has no battery at all. Instead, it generates enough power to squirt a radio message to the receiver from the force of the finger pushing the button to ring the bell. Clever.

#DIY #Steel #Zinc #Tin #Bending #Metalworking #Homestead #Doorbell #Electronics

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Prepare to Brake: Quick Intro to Metal Bending - If you want to bend metal to make shapes, you might use equipment like a brake. Bu... - https://hackaday.com/2023/08/05/prepare-to-brake-quick-intro-to-metal-bending/ #metalworking #toolhacks #bending

Porco Afterdark
@pmpafterdark

He / Him / His
LGBTQ+ ally / Parent

Hoping to find the diversity of voices and perspectives that I found on Twitter.

Interested in #InternationalRelations, #Politics, #STEM, #crafting/Making, #cooking, #3dprinting, #woodworking, #metalworking, #physicalfitness, and much else.
#boost #followfriday #follow #followback #altext

DIY Electric Roller Bender Can Handle The Thick(er) Stuff - Every serious metal worker will end up getting themself a roller bender at some point, but if you’... more: https://hackaday.com/2019/12/22/diy-electric-roller-bender-can-handle-the-thicker-stuff/ #metalworking #barbending #toolhacks #machining #bending #welding

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