Recent content by Serj

Thank you for reply.Safety is #1. I have lexan to enclose the machine. I do not understand why I need 1000 bar. If I inject with 10 psi what will happen? Manual piston type injection molders do not use 1000 bar. The piston is usually 3/4" diameter and the operator pulls down without doing a...

Hello, I am making an injection molding machine for fun. There is a lack of available information regarding the details of how the process works. There is something call the Lyman extruder that uses a wood auger bit as the injection screw. This auger is shaped much differently than the...

http://www.techmind.org/sl/#electric I don't understand figure 3, the outer parts of the coaxial cable (from the transducers) are connected to eacother but don't seem to be connected to go anywere (it looks like only the inner core is connected to the transducers).

what is a 1R resistor?

thank you. What occilates the bubble? Is it the transducers on the side or the one on the bottom?

You mean literally the ground? Also imhaving trouble finding resistors. I need a 1 Mohm resistor, 10 kohm, and a 1R resistor. They have to take 250 volts , or it might be 40V p-p. http://www.techmind.org/sl/#electric I can't find a site that sells resistor that can take that much and I don't...

Yes, the inverted T connections. Ground? What do I connect the wires to?

urgent help needed http://www.physik3.gwdg.de/~rgeisle/nld/sbsl-howto.html Halway down that page is a circuit diagram. In the diagram wires don't lead to anywere(after the resister label R1 the wire doesn't go anywere), I don't that much about reading circuit diagrams but I know those wires...

thanks for clearing up levitation but what about the bubble collapse?

Thank you but that doesn't answer either of my questions. I will clarify. Why doesn't the bubble just keep expanding until it's so big it floats upward or destablizes and dissipate into many bubbles? How does an anitnode keep the bubble from rising?

I can't find it anywere, why does the bubble collapse? And could someone clarify acoustic levitation.

I need to buy polarised transducers capable of emitting sound at 25kHz. Which one of these should I buy? http://www.imagesco.com/catalog/sensors/film.html http://www.imagesco.com/catalog/sensors/piezo.html

I assumed increasing the difference in Radius would increase pressure/temperature at implosion. Wouldnt decreasing viscosity also decrease stability? What determines the temperature of the implosion?

would it be possible to increase Rmax by occilating the bubble on its first return (after it implodes)?

aceeleration=change in velocity/change in time so: 17-8/3=a d=at so d=a * 3 seconds