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I have a project that requires me to design a high strength plastic part. My question has to do with if there should be any major difference in the way a glass filled acetal is injection molded versus an unfilled acetal. After trying 111P, 311P, and 511P acetals I was obtaining strengths...

Clyde38, Check out www.artesjet.com or www.behotec.com they make great engines. Can also just do a search for model jet engines and find many sites. Also the Gas Turbine Builders Association is a great site with several pictures www.gtba.co.uk

How would I determine the amount of electricity the motor will produce at a certain RPM?

Batteries are fine. The battery pack is a one of a kind type and is designed to only last about 3 minutes. I can always have a battery with a longer capacity made, but I just like the idea of having a recharging system integrated into the entire system. But thats just me.

Barry, where could I find a small turbine generator?

Yeh they are alot of fun. The only problem is that I can only run the engine for about 3 minutes before the battery pack running the control unit runs out of power. Would love to have a way to sustain the batteries longer or atleast till I run the fuel tank dry.

Keep in mind that this is a small turbine engine. Currently I use a hair dryer to spin the turbine up to speed so it does not take much force to spin the engine. In fact I can blow through the engine and get it up to 1,000 rpm. Also keep in mind that these are being used by at home hobbyist...

I own a scale model jet turbine engine. To start this engine up I have to use a hair dryer to spin the engine up to 3000rpm's, then I can ignite the gas. I have seen small DC motors used for this step, connected directly to the shaft. I have heard that the motor can also act as a generator...

Machinability and its minimal change when being heat treated. Thing of it is, is that we have been using it before we started using high speed machining therefore it was important to have minimal change. Now that we can high speed machine we almost don't need it but getting the Japanese higher...

Thanks alot guys, have been a huge help.

DAIDO is the company we currently purchase from, at a very high cost. Was wondering if anyone in the US made it or if there was a very close equivalent available.

Does anyone know where I can obtain maraging steel (MAS1) at within the US?

I am looking for information about this type of steel. From what I am told the only place it is made is in Japan and is very expensive. We use the material to make die cavities and we are looking to see if there is anyone in the US that makes it. Thank you