Recent content by Baluncore

3/4 HP was specified, and there is no reason why that has changed. You will need to select a gearbox, chain or belt reduction to give 15 RPM. The line frequency will determine the induction motor RPM.

Look for problems of fit by using a feeler gauge, or look for light passing through a gap that is due to imperfect stock or preparation. A competent welder will know what is required. They should work with a mechanical engineer, to design the jigs and fixtures needed for a routine assembly...

Locks keep out the honest and the naive. https://www.youtube.com/@lockpickinglawyer

"My husband was a crook, I don't want anything to do with his criminal activity, so when he died I just threw his safe in the lake". "We stole the safe from work, along with the key from the top desk draw. But when we tried to open the safe, the key did not fit, (obviously the wrong key), so we...

Maybe it was not locked.

There are ways of opening safes. Those methods are known by the manufacturer and by trusted locksmiths. A public forum is not the place to discuss such activity. I expect the police consulted the manufacturer, but there are other possible explanations. One is that it was originally the...

Then you need to study the elasticity of engineering materials, and the deflection of materials subjected to loads. You will then be able to calculate the force required to straighten a part, and hold it in that position, while it is being welded...

The force needed to bend the beam, to close air gaps, prior to welding, is a function of s^3, so it should work for any thickness, s. The parameter not specified are the number and position of clamps. You may know what you mean by that, but there are too many possible interpretations for me to...

Questions that are answered, get indexed by search engines like Google, etc. Google works best when there is a well-formed key question, followed by several answers in the one thread. People who Google their question, will be guided indirectly by Google to your answer on the forum. Without...

If you have experience, then watch the various forums and answer any question that comes up within your field of expertise. Your posts will then not be deleted.

How many queens can you place on a 4 x 4 board ? What about a 3 x 3 ?

How would a quantum computer solve the problem? https://arxiv.org/abs/1803.00735

The Australian Square Kilometre Array Pathfinder (ASKAP) is a synthetic aperture array that has as many beams as it has correlators. The results are generated by numerical signal processing, by searching for signals in the noise. That is why they are referred to as signals. The IF quadrature...

@elexzar Welcome to PF. Maybe you are confusing "gas", a state of matter, with "gasoline", a petroleum fuel. A "gas strut", "gas spring" or "air spring" is based on compression of a gas. https://en.wikipedia.org/wiki/Gas_spring

That is a huge question. There can be no one reference book. Most clamping force will be very specific, and based on experience. F = k * width * (thickness)^3 . But that ignores the clamp position and distance between the clamps. What material ? What welding process ? Clamping parts...