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You said something about not being to find an account. Be careful about that one. If it because they won't let you do things the way you want you need to ask why. They maybe trying to keep you out of trouble. I know someone learning that the hard way. If they were just too expensive of...

You could not list any negatives about the new job. It is common and easy to get cold feet at the last minute. If you really want a masters then a larger employer will have a program to pay for it.

What are the options for making a small tank? I want to make sure I have considered all the options for this design. Here are the details: 500ml 2psi internal pressure needs to be water tight contents will be liquid cleaners (originally sold in PD jugs) 5000 parts a year The processes I know...

I have thought about pinch valves. When I used them in the past the hose had to be replaced as regular maintenance. We would prefer to avoid that in this application. Are there hoses that last for 10,000 pinches?

I have used those pins in hinges on products sold in the millions. Unless we flare the ends they will work their way out. 0.0001" of movement times 1,000 cycles is 0.1 inches. I agree with the suggestion of eliminating the pins and gluing it together. There are aerospace applications with CF...

I know a lot about valves for gases but need something different for my next project. Can anyone recommend a supplier of inexpensive small plastic valves for water? Only needs to hold 1 PSI. Manual or electrical operation are both options.

This was a question that could have gone into a dozen different forums. Like you said hopefully the right guy will come along that can explain what characteristics give these materials and coatings their unique tactile properties.

What about a soft touch paint? Is it still a low durometer that creates the feeling?

What properties gives a coating a "soft touch " feel? There has to be more to it then just a low coefficient of friction. How do you define and "soft touch" so that you can evaluate different materials?

Porex sells PTFE with voids in sheet form. Why make it yourself when you can buy it?

I forgot about this. It is a free version of one of the commercial packages. http://www.rs-online.com/designspark/electronics/eng/page/mechanical

Thanks, The ones I have seen are used as references with durometers. They were allways all one uniform thickness. Henry

mjjmecheng There are free educational/non-comercial/home versions of all the programs in your list. Solid Edge also has a couple of good free or cheap options. CAE linux has a bundle of free open source FAE and flow packages. racookpe1978 Download the free version and give it a try. There...

I once looked at the graduates of the engineering institute that went to on Linkedin to see how many were still engineers. I do not remember the exact numbers but after about 5-10 years they started to drop off. By 15 to 20 years they were really low. One biggest problems behind these problems...

I got the DVD for Christmas. I enjoyed the movie but wish there was more flying. Miyazaki always does a good job with flying. I got to explain to my son what a slide rule is. I wonder if the bit about the fish bones was accurate?

Look at the parts you are already running that would have fewer setups if done on a 5 axis. This would give you a savings on existing jobs. There are places like MFG.com or quickparts that will feed you work for a commission.

One of the places I used had a nice set of durometer references. In addition to having several samples of different durometers the side of each sample had sections of different thickness. This was great for deciding how something would feel in a given thickness and durometer. I have been trying...

Oxford Instruments and others have coating and plating thickness gauges. They may work for what you need. Get you hands on a demo and a couple of example parts and give it a try. http://www.oxford-instruments.com/products/coating-thickness-measurement/coating-gauges

Chris could you measure density with a pyconmeter for a nondestructive test?

Get some more from whereever you go the first ones.