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Also, in my experience, when employers stop stocking the first aid kit because the supplies disappear, it's because people are routinely getting hurt and using the supplies.

Yeah I get locking up pills or things of value but anything meant to control bleeding needs to be available at all times. And if it costs money, welcome to life. Safety isn't free.

Id for sure be interested in a few flat rate boxes of them. Otherwise I was thinking of setting up a freight pickup if he'd be okay with that, but I really can't burn through more than a few tons of...

Where are they located?

Looks like the start caps are supposed to be connected through the lower contactor that is controlled by the potential relay. One pole of that contactor should be between incoming mains (probably...

At the semiconductor fab my dad works at he saw somebody splash a chemical in their eye, half assed rinse it out and try to hide it and returned to work.

My dad forced him to go to the hospital...

As mentioned, derivative gain is too high

I didn't read all of this but the heat from your hand sitting a few inches away can be enough to flex your machine out of spec.

If I had a dollar for every time someone wanted me to weld some greasy, oily, mystery aluminum (or powder coat it) I would have like $7 which isn't a lot but I'm getting tired of it.

Having tuned DC servos before, using encoders, I've found it's very common to go a little overboard on the derivative gain. If you are just a bit past the ideal tuning it will work fine at low...

Maybe you should reconsider who you hire...

A locked first aid cabinet seems not right to me

Correct me if I'm wrong but isn't the important part of spinning to only stretch the metal and avoid trying to compress it or you will get wrinkles? From the few videos I've seen the blank diameter...

We got a mill at work and I need to tool it up, but have limited practical experience other than a resume mix up that had me running a mill with no training. On the bright side it took them 3 days to...

The only reason they aren't economical to resurface is that you can buy them cheaper than the labor to resurface them. Not to mention the downtime of having no brake rotors.

Sure, you can't...

I will add that I at one point wanted to construct a hot air popcorn popper, such that the popcorn would be blown into a bowl after popping to avoid burning. I did dabble with a direct butter...

Sand or concrete are about as budget friendly as it gets. If you need density maybe concrete with whatever steel scraps fit in there?

I have in the past drilled an oversized hole, brazed it closed, then drilled and tapped that instead of the base metal. Works okay if you can't change the hardness of the material.

The real pro stays in bed until someone throws out a number big enough to get out of bed for.

On the other hand this guy serves as a creative outlet for all of the stress customers like him have caused all of us.

My only concern with flooded shielding gas is that steel doesn't weld very well with straight argon, and tends to benefit from some amount of CO2. I don't know enough of the details to know whether...

What would be the best heat treating process after this, and how much distortion do you think would result from stress relieving?

It probably has a mechanical thermal switch somewhere in there that could use replacing. Think of where it would get hot and look for a little thing with two wires. Could be a metal can, could be a...

Our welder is an Invision 352 MPa. I know a version of the gun works with our 255 and another version does not. They have incompatible connectors due to the encoder feedback. I am almost certain that...

Furnace filters make a great prefilter but they allow many smaller dust particles through, and you will produce lots of fine dust. Two blowers may handle both filters.