Alum_Knife_PLANS.pdf

Several people have requested these plans in PDF format instead of MS Word. The PDF file is attached.

Best Regards,  Larry Zepp  CH 650B builder, Fort Wayne, IN

Garlock%20DU.doc 

By Larry Zepp, Zodiac 650B Builder, Fort Wayne, IN

Reducing friction and wear between aluminum and steel at the pivot points in your aircraft is a good goal. Usually, space is a problem – how do you add a bearing or bushing without changing the aircraft design?

A combination of space age technologies has offered an elegant…

Improved Aluminum Knife Plans

Even though the Olfa scoring knife gets the job done when cutting aluminum sheet, I kept thinking there must be a much better way to cleanly cut out aluminum sheet. Knife blades are designed to cut soft and flexible materials. When we use an Olfa or utility knife blade to cut T6 tempered aluminum, the aluminum resists spreading at the cut line and requires many repeated scores. Even though the aluminum is thin, the blade must cold flow the…