Now I see it! Pitch is not constant over the length! Wow, nice piece of work 
You can buy loose blades, no problem. I just did for a costumer. The stock screwblade was to thin in his opinion. Ok, we make a special one for you . Special price of course…
Cody, I have made control cables using SS thin gauge cable and liners from MIG welders or plastic tubing. For my non-critical uses, the replacement of a mower, tiller controls, or our wood furnace draft and damper, they hold up OK.
Kent
That’s some amazing work Francois. I don’t have a clue about how I would go about making those shapes, even with the jig you made for your press.
Francois, Thats a lot of btu per hour. I would love to see pictures of the boiler. What do you use all the heat for?
It is a boiler of two MW/h, with hot water, to circulate in a dryer belt finally to remove the humidity from the sawdust to manufacture pellets.
Here I have spliced a dimmer switch into a short extension cord. The volt meter gives me an indication of how hot the soldering iron is going to be.
Rindert
Tell me about rheostats and electric motors. I am wanting to make a filter with a blower out of a 5 gal shop vac. I want to vary the blower speed but I find conflicting information on-line about whether connecting the motor to a rheostat would damage the motor or not.
A router speed control should work for a universal motor like on a shop vac.
Is there a router speed control that is a separate component, like something you would attach to a router table and then plug the router into?
I think you can get those, they plug in before the router to the wall.
Sure you can do that. I have an old vacuum cleaner that I use as a blower for various things I do. Black is hot when you’re talking AC so I would put it in that wire. Here is my blower, putting air to my forge.
Rindert
Anvils made from Railroad Rail Sections:
I hope this is not too far off topic, but it IS about fabrication.
I recently made one more railroad rail anvil. This one is a bit different, since I am trying to make the anvil’s horn as strong as possible:
Maybe he is intoo BLACK MAJIC-- i seen those BS claims before, if it did some how roltate both motors, it would take a thousand of them too have usable power left over, most likley.
Ditch the flux core and use stainless wire (308l works for most) and pick up a small bottle of tri-gas. back shielding is mostly necessary when the welds must be perfect and free of contaminants (i.e. food grade piping). do not shield with the 75/25 it must contain argon. if you have much to do, a cheap tig would be a worth while investment.
A little tip, so easy probably all know it already, but if only one like it, it’s worth sharing 
Showeling chunks or charcoal in a bag can be cumbersome, especially if one uses net-bags like i prefer to. It can be a real pita, you need atleast four hands to hold them bags open…
)Another tip if someone missed it: sometimes i have noticed i’ve needed a flushing port, or for inspection, drilling a hole is’nt a problem, but sometimes it’s cumbersome to weld a threaded bung or like, to close the hole when not in use.
On cooler parts of gasifier systems these works extremely well: expanding plug, used for marine applications.
Tip:
If you put dry teabags in your boots they will absorb the odor, but the tea tastes so bad that it’s almost not worth it.
I feel relieved i only drink coffee 
Is there is consensus on a good cheap HHO generator? At some point, I am going to need a small torch that can melt high temp silver solder (minimum of 1,325°F (718°C) ), and I don’t want to store or use gas like propane or mapp inside as I don’t have the right ventilation.
