It has always been troublesome for me to use a stencil mask and spray paint to apply
markings to my models. Paint al ways seeps under the edge and the markings don’t
come out great. To improve the looks of my models, I have started to use a permanent
marker and a reusable stencil to draw the outlines. ;en I fill in the stenciled markings.
;is method works great on foam, Depron, film, plastic, and any other type of electric
powered model surface.
Conrad Rompala, Green Lake, WI
Fine-Tuning Control Horns
When it comes to using a pull-pull control system, it is extremely important that you
set up the geometry correctly. Measure the distance between the attachment points
on the two-sided servo arm and make sure the distance between the attachment
points on the horns on the control surface are the same. Oftentimes, standard control
horns will be too short, so to solve the mismatch, use thin plywood shims between
the control surface and the two horns. If the distances are not the same, the pull-pull
cables will become slack on one side or the other as the servo moves the control
George Underwood, Poughkeepsie, NY
When running up your helicopter, you need a sturdy and solid base. My solution was
to bolt some metal brackets I had onto the top of my metal toolbox. Any metal bracket
will work, as long as the bolts you use go around the skids to hold them in place.
Tightening down the bolts secures the heli and you can safely check your heli’s blade
tracking, check for vibrations, or whatever else you need to do to adjust your model.
I also put extra bracing under the toolbox lid to ensure that vibration is eliminated. It
Steve Stresman, Perth, Ontario, Canada
Secure Bullet Connectors
When it comes to doing the hard wiring for large electric motors like this Hacker
A60-16L, which powers my giant OV- 10 Bronco twin, I don’t take any chances with
bullet connectors. Even the best-performing model can have some vibration issues.
Although bullet connectors are very tight fitting, I apply some heat-shrink tubing
over the connectors. ;ey hold everything securely and it’s easy to remove in case
I need to do maintenance on the motors or the wiring. ;is will serve as cheap flight
Rich Uravitch, Grant, FL
SEND IN YOUR IDEAS and if we pick your tip, we’ll send you an Electric Flight baseball cap! You can
send in a photo or sketch describing your favorite shop trick to: “Shop Tips,” c/o Electric Flight, 88 Danbury Rd., Suite 2B, Wilton,
CT 06897 or email us at firstname.lastname@example.org. Be sure to include your name and mailing address. We’re sorry to say that due
to the number of hobby-related ideas we receive, we can neither acknowledge each one, nor returned unused material.
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