Recent content by Joe Mechanic

The tyvek is a pre printed lable. Not a separate label attached to the tyvek. BobG, It will take me some time to digest what you wrote. Thanks. I'll update after I've tried it.

Oddly enough for a manufacturing facility, we stop when we run out of parts. Then we go to the next product. My management is usually responsive if you have data to support your theory. Especially when it comes to saving money. I was hoping to be able to measure a small roll and...

I'll try to explain. I'm the person who has to lug these rolls back and forth so I have a vested interest in proving the economics of tossing a roll when it reaches, say an OD of 4 inches. I want to prove to my management that it is not economical to use a leftover roll if it reaches a...

Mr. Watters, I wrote the formula from the paragragh description and it worked out much better. Thanks for you help.

These rolls weigh around 100 pounds and only our floor scale can handle the load but it is located in an area that is far from its point of use and I don't think anyone would bother. That's why I'd rather rely on a formula. All of the measurements are constant except for the diameter.

That would be easy but it doesn't work here. It's an extra step we don't need. It is easier to just calculate before returning the roll to the warehouse. My problem is, we over estimate the number of rows left on a partial roll and install it on the machine when we should be tossing it...

Mr Watters, Thank you for the quick response. I 'm envious of your math skills. I applied the formula to a brand new roll and I was off . In your written paragraph you said "you can take the average diameter of the product minus the core diameter, squared, times... " But the formula...

I am not an engineer and my math skills are not great but I have this problem that I would like to know the answer to. We have a blister packaging process that seals labeled tyvek against formed pvc blisters that contain our product. What I would like to be able to do is figure out how many...

Let me ask this: Shouldn't a machinist's handbook be referred to to determine how much torque should be applied to a particular type screw? If you assume an infinite strenth material for both wrench and screw, wouldn't the amount of torque possible be infinite?

I can't recall seeing a banjo fitting on an commercial aircraft but I have seen them on automobiles. It is a doughnut shaped fitting that has fluid delivered to it via a tube. The doughnout is held to whatever receives the fluid by a bolt with a sealing washer; the doughnut hole is slightly...

Wow, you guys are great and correct! I didn't offer too much detail about thrust because the question was related to how the compressor worked. Also, I made the assumption that the question was being asked by a young student because of its brevity. I didn't mean to imply the turbines...

Keep these four things in mind: 1. Compressed air,high pressure, flows toward low pressure 2. the compressor sections are in the front of the engine and the turbine in the rear 3. the compressors are attached to the turbines via shafts 4. Between the compressor and turbine sections is...

A good source for this info could be found in the forum section of amtonline.com. It's for aircraft mechanics; many of whom deal with corrosion daily. A few members are even FAA inspectors.

I have went to both ERAU and NCSU. I have found in both cases that the faculty will help if you ask for help. They are there to teach but not all students are there to learn. They will focus on those who want to learn and the only way they tell who wants to learn is by watching who puts forth...

And don't forget to use a gage that locks on peak pressure or the reading will fluctuate so fast, you'll never be able to record the number. Plan B: Install a check valve in the line.