Duals do-over

[Captain Obvious]

On 6/14/2021 at 6:29 AM, madkaw said:

Been running two Lamba’s . The cat is for smell

Gotcha. And if you're running a closed loop system that uses lamdas, you should be able to control the mix good enough that you don't light the cat on fire.

Good luck with the TIG. Run pure Argon. I wish I was better with mine, but I'm sure some of the faults are my own... I don't use a dedicated grinder for my electrodes (which is a no-no), and I don't have high-freq start, so I assume that my tips are contaminated before I really even get started. Sometimes it turns out good, and sometimes it doesn't. I'm no welder. 

[madkaw]

It’s an interesting dynamic watching dual widebands with these plenums. Mixture varies with vacuum changes . 
 

I don’t use a dedicated grinder either . I might get serious and buy one just for that . Maybe a mini that sits on the welding table. I’ve got enough strokes against with skill level, so maybe clean consumables might help me . Burned a quarter inch hole already and was able to refill it - lol.

The tig is slower , but is better if I can get it done . 

[madkaw]

Well I ran out of argon which forced me to go back to my spool gun . Figured out it’s issue ( operator error ), but live and learn . It’s sooooooo much faster with MIG ! 
This is my initial attempt , but I might redo it . I was hoping for a bit more spacing between the pipes . I could have gained a bit more clearance by get the pipes side by side sooner . It will be a trick , but I have lots of mandrel bends to use .  The back half will be the easy part .