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My favorite is 4140 Pre-Hard.

What would be the preferred grade of stainless when used in contact with carbon fiber?

MJDavis, That's exactly what I had in mind! Your version is newer than mine(SW2004), so I couldn't load your file. Are the profiles just a sketch saved as a .sldfp file, or do I need to create a feature? I want to learn the basics and then automate the process. Thanks, Larry

I would like to create a library of various size tube diameters and wall thickness. Can this be done by using configurations? Do I need to create a Thin Feature for each size, or just a sketch? This topic would be a great addition to the FAQs. Thanks, Larry

KR1, I'd like to hear more details of your project.

I have made many of the parts you listed from a 7075 aluminum called FORTAL. Great material to work with! See: http://www.mousebar.com/fhome.html

Agreed!! Learning curve is real steep. Better days ahead. I've used SurfCam for years in moldshop and rapid prototype settings with good results. "Curious - why no surfcam now?" New job. Purchase selection made by Higher-Up

I'd like to hear some feedback from CAMWORKS users. I am trying to make the switch from SURFCAM, so far it's been a tough fight.

"Bourke is definitely a two-stroke. The scavenge chambers below the pistons induct the charge, which does not have to carry oil for bottom end lubrication, since the bottom end case is sealed. An added benefit is that oil never sees the carbon from combustion and does not get contaminated."...

Thanks AGAIN Larry ! The posts above are the most concise explanation of this topic I have seen.

What a great thread! What is the best strategy for dealing with very low lift/diameter ratios (.428 total lift/1.570 Intake Valve diameter)? Are tricks to limit reversion helpful in engines that do not have a lot of overlap? Larry Wiechman

I am searching for tips or macros to create the sweep cuts on the outside of a barrel cam. Thanks, Larry

Tube headers are not in the plan, just a "cat-back" modification. I have been checking various locations at the side and rear of both vehicles with a manometer, looking for a low pressure area to exit the pipes. Also plan to install pressure taps at a few places on tailpipe...

I am looking for information about the design of exhaust systems. My goal is to improve MPG. I want to keep modifications limited to exhaust pipe and muffler without the use of tube headers. The vehicles in this experiment are a 1994 Ford van (300ci 6cyl)and a 1995 Geo Metro (61ci 3cyl). Is...