POTD- PROJECT OF THE DAY: What Did You Make In Your Shop Today?

[erikmannie]

Maybe others with more knowledge can chime in here, but I think you will wind up with galvanic corrosion between the aluminum and cast iron table top.

Once again, I have forgotten about galvanic corrosion. I am going to redo this whole set up with Delrin, counterboring Delrin plates & bolting it down into T-nuts.

 

[mattthemuppet2]

galvanic corrosion only occurs in the presence of an electrolyte (liquid containing ions, eg salt water). So if you're close to the ocean or you spray copious amounts of sweat everywhere Erik, I'd worry a teeny tiny bit. If not, then don't worry. I use baking trays with a piece of wood screwed to the bottom to fit the center T slot. They work really well for all the reasons you outlined above, but also have a nice lip to catch the chips.

 

[Provincial]

Just a coat of paint on the bottom of the aluminum will protect it. Use an enamel, or if you are going whole hog, zinc chromate.

 

[mattthemuppet2]

Replaced the transaxles/ CV axles on the Fungus yesterday. Both boots on the driver's side were gone and the CV boot on the passenger side was about to. Both the CV joints had end play too. Also did the sway bar end links as one of them had a split boot.

Wasn't terrible, though I had some struggles with one of the shock bolts. Took several heat freeze cycles (last with two propane torches on the bolt!) to free it up. Also had to drill a hole through the driver's side transmission side joint as there was no way of prying it out.



My reward for all this work? Discovering that the ball joints need replacing

Oh and some useable scrap metal too

 

[Doug Gray]

I have an ongoing gig assembling Flux Capacitor Drive shafts. My client decided that they want a three digit serial number stamped on the end of the shaft. I made up a stamping guide from UHMW. It is a snug push fit to the shaft and to my number set. It may not be pretty but it produces a straight, well aligned serial number.

 

[Eyerelief]

Nicely done!

 

[WobblyHand]

How many gigawatts does said flux capacitor make

 

[Doug Gray]

I can't disclose!

 

[erikmannie]

Today in the shop is what we do on Saturdays & Sundays. Jack face mills 5/8” mild steel plate that was used for SMAW stringer bead practice years ago.

I gas weld .125” mild steel coupons. I have been working on butt welds in the flat position. This welding practice is *very* instructive & illuminating what with making sure to always keyhole in order to get 100% penetration.

Earlier in the day I did several coupons with no filler material (fusion welding).









Fusion weld:



With 3/32” filler + back side shown:





T-joint in horizontal position:

 

[Martin W]

View attachment IMG_0338.MOV
Not the facing head I just put together but a 1-1/2”x1-1/2 HSS turning tool I mounted in a holder to clean up some rusty old C channel for an engine cart I’m making. I still want to try out the facing head but it’s a big job to change out heads and my son wasn’t around to help me lift it up. Jib crane is on my to do list. Lol.
Martin
View attachment IMG_0337.MOV