Stuff you have made today

[Onoff]

Haven't you yet tried joining all the 'fag ends' of rods to make one longer one. And here's me thinking you were a true Scot.

Could you do that, then weld in an inert atmosphere and not worry about the unfluxed bits?

 

[Sergei Slovenija]

A few seals made of reinforced rubber, for flange DN50. A lathe and a pipe made of scrap metal solved the matter.

 

[slim_boy_fat]

Could you do that, then weld in an inert atmosphere and not worry about the unfluxed bits?

I can't TIG satisfactorily due to compromised eyesight, so that'd be beyond me.

 

[bricol]

A few seals made of reinforced rubber, for flange DN50. A lathe and a pipe made of scrap metal solved the matter.

Now might not be the right time to mention you can make them simpler than that - a simple round disc with a hole in the middle, a washer in-effect, that sits inside the bolts - a "ring" gasket. The material the bolts pass through does nothing, only the bit actually trapped between the flanges - uses less material too. You can insert, and indeed remove, the ring gaskets without having to completly dismantle the joint too.

We ended up simply buying them, usually PTFE ones, saved time and effort of making them, and hence money - but we were using a lot of them.

 

[Sergei Slovenija]

Now might not be the right time to mention you can make them simpler than that - a simple round disc with a hole in the middle, a washer in-effect, that sits inside the bolts - a "ring" gasket. The material the bolts pass through does nothing, only the bit actually trapped between the flanges - uses less material too. You can insert, and indeed remove, the ring gaskets without having to completly dismantle the joint too.

We ended up simply buying them, usually PTFE ones, saved time and effort of making them, and hence money - but we were using a lot of them.

The equipment is equipped with graphite gaskets sandwiched between two stainless steel rings. I need to assemble the pipelines in a new configuration (dia 57*3 mm, cutting, turning, inserting pieces and so on), and the graphite gasket will be disposable. The thickness of the rubber and graphite gasket is 5 mm, in practice, I get the true dimensions of the pipeline system in space during the rough assembly. However, I'll probably leave these rubber gaskets for vacuum lines, graphit do not belong there, IMHO.

 

[selectedgrub]

Hang 10

Darkslide.

 

[Dr.Al]

Hang 10

Darkslide.

That is awesome.

 

[Newlands]

Laser cutter for the wood and vinyl cutter for the card. So much classier than cards

 

[Kram]

It may just be my setup. The logic analyser only has a ground reference so it may think that the 2.5v and 3.3v? Of the high line are the same? Did I mention this is giving my a headache? My day job is C# and sql, this low level stuff hurts
The transciever chip has a Vref pin which is supposed to be Vcc/2 =1.8v, but its measuring 0v.

Im using a 3.3v can transciever TI VP230 as my esp32 is 3.3v, and that is the recommended chip, there is a hint that may be a problem. I will order a pack of level converters and a proper 5v CAN chip.

I need to get an ossiloscope!

I just had a play with the induction heater just using a lipo pack.

The current and power will be much higher running on 50v.

Its taken me almost 2 years to get a second test done. This is the setup...

Watercooling really needed some fans! This thing dumps about 250w when idle and much more when an item is glowing bright orange. The 35mm² welding cable to the coil were getting hot, tho the tiny supply cables were ok. There is a lot of current in the tank circuit!

30mm steel bar, 44A peak and 33A at the curie point. A smaller coil would have worked better!

Yes it will heat graphite easily and melt red/plumbing brass.

I didnt have anything ready so poured into a small melty wet plastic pot.

Next job is to finish the bigger coil and try the bigger cruicible, and use it for another horse brass attempt.

 

[Onoff]

The 35mm² welding cable to the coil were getting hot

I've some 50mm2 here I think, could sort you some of that.

 

[nickk]

Made some guide slots in this saw table top. Luckily it was within 12 mm of the 762mm traverse length.
Nice to use the mill after a few weeks of non use.

 

[ihavenoidea]

A start on a little prototyping job. A little bit of Ally welding. Pretty good result with 100% penetration….considering it’s only 30 microns thick
2,5mm Allen key for scale. So, it proves I can do it, now it’s a case of do I want to do it?

Next step is aluminium foil from your kitchen?

 

[MattF]

Next step is aluminium foil from your kitchen?

He could likely make a fortune, selling TIG welded foil hats, on here.

 

[ihavenoidea]

That’s thicker. No challenge there

You just made me walk into the workshop to measure aluminium foil....

 

[James1979]

You just made me walk into the workshop to measure aluminium foil....
View attachment 376018

What brand of mic is that? I’ve not seen a Russian one before. Blatant thread drift, sorry.

 

[minimutly]

A start on a little prototyping job. A little bit of Ally welding. Pretty good result with 100% penetration….considering it’s only 30 microns thick
2,5mm Allen key for scale. So, it proves I can do it, now it’s a case of do I want to do it?

View attachment 375894 View attachment 375895 View attachment 375896 View attachment 375897

What did you do that with? What size and shape tungsten? How many amps?
I've tried welding the stainless coffee cup I had - made some holes, welded some of it. Used pulsed for the first time, but it wasn't what I'd call a success. I felt it needed a copper heatsink.

 

[ukracer]

A mess of insulating my back room by the looks of things.

 

[ihavenoidea]

What brand of mic is that? I’ve not seen a Russian one before. Blatant thread drift, sorry.

Its from "Kalibr", if i am correct they still exist. Eastern block machining tools became pretty common in (West)-Germany after 1990. They often decent enough for home use and relatively cheap.
Most of my left hand taps and dies are also labelled USSR.

The GOST 6507-60 standard was replaced in 1990 by GOST 6507-90

So, you use cheap foil in the kitchen Nothing in it. Probably the same thickness then if I measure with a micrometer.

Looks like Aldi went cheap
Yesterday I apparently learned that aluminium foil is ~0.03mm thick. And more impressive, that some people can weld it.

 

[Hood]

Now wishing I had bought more of the F Clamps when they were on sale at Rutlands.

Used them for making up a shooting table for a boat.

Start of the hinging aft section.

All sections of the frame done, aft hinging, fixed middle and sliding bow section.

Started chopping up the sheets of 5mm, will get the rest done Monday but I will not be welding them on until the frame is on the boat and the legs all fixed in place.

 

[arian]

Now wishing I had bought more of the F Clamps when they were on sale at Rutlands.

Patience, Grasshopper. They usually come round again