Recent content by Mahonroy

Thanks a lot for this information, very helpful! I can easily countersink the back of the hole at an angle, such as 45 degrees. Rounding it as in putting a radius on it will be a little trickly. I'll see what I can come up with here. I will also try a length of straight pipe (same inner...

Thanks for the response! And yes I am interested in figuring out how to model this and figure out what to do.

Hello, I am trying to throw water the furthest distance possible from a garden hose and an inline water pump. The amount of water is not important - e.g. a tiny stream is perfectly fine, so long as it reachest a really far distance. I understand wind severely messes this up, so lets not worry...

I have any choice of length for the tube/coil, and any choice of length for the slug. If I want a few feet of movement, then what does that mean?

I feel like I am missing something here. You mentioned the coil will put a force on the slug near the end of the tube, and pull it towards the center didn't you?

So the slug will move towards the center of the coil/tube is that right? So the area of movement would be between the end of the tube, and the middle then? Would this not work between those two points?

I originally tried adjusting the contrast... it was making parts of the white background more dark, and parts of the lines darker, but parts of the lines also lighter. Basically it was not working well. But making the image darker in general made it easier to see the lines. Its just a tube...

What about something like this then: The rod is much smaller, and not sticking out the end of the coil. Would that give a more consistant force in the middle area of travel? What kind of coil diameter and voltage would we be talking here?

Thanks again for the response. No its just weight - could be plastic, aluminum, steel. Basically any non-ferrous material. The only thing ferrous would be the rod that is in the coil for it to operate. The cylinder does need to be able to move up and down from within the cylinder. I'm guessing...

That is pretty much the application in that image I uploaded. I want to be able to dial in a voltage to be able to hold the weight up against the cap. If I put in a 400 pound weight, I want to be able to dial back the voltage until I get the weight to suspend. The problem is I have no idea of...

Yes, I mentioned I even tried using some online calculators but I didn't have much luck with them.

Here is a sketch of what I am talking about:

Thanks! I'm thinking of using a 1" PVC pipe to wrap the coil around (1.315" OD, 1.029" ID), and then a 1" OD iron cylinder to fit in the PVC pipe. The coil can be wrapped to whatever diameter is necessary. Not a 1" coil, I said a 1" PVC pipe is 1.315" outer diameter, the coil can be wrapped to...

Hello, I am wanting to wrap a coil of wire around a tube, suspend an iron cylinder in the tube, energize the coil, and have it be able to suspend around 500 pounds on the iron cylinder. I was playing around with some online calculators for coils, and didn't really get anywhere, so I figured I...