09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
130
Hole saws and two-flute Vortex router bits are a few options available. Drill
several practice holes in scrap pieces of Acrylic to perfect these
techniques before drilling your part. Back-up the windshield with a block of
wood. Start with a slow speed and light pressure, then increase the speed
and pressure. As the drill bit starts to go through the Acrylic, reduce the
speed and pressure so the drill bit goes through the Acrylic slowly. Drill
holes oversize to allow for motion caused by thermal expansion and
contraction. Lightly de-burr the holes with a countersink we prefer the
single flute style.
General drill speeds
Diameter Speed RPM
.060" 1500-4500
.125" 1500-4500
.187" 1500-4500
.250" 1500-2000
.312" 1500-2000
.375" 1500-2000
.437" 1000-1500
.500" 500-1000
.750" 500-800
1.000" 500
How should I clean my windshield?
•
Use cleaners specifically for Acrylic. A damp cloth or an air blast will clean
the dust away. To achieve the best results use fore and aft motion instead
of a circular motion. To clean dirty Acrylics use plenty of water and non-
abrasive soap or detergent. All-cotton flannel can be used for drying.
Never use aromatic solvents such as acetone, benzene, carbon
tetrachloride, lighter fluid, lacquer thinners, gasoline, window sprays,
concentrated alcohol, ketones or scouring compounds. Avoid using
cleaners with ammonia, such as 409. Grease, oil or tape residue may be
removed with kerosene, white gasoline, naphtha or isopropyl alcohol (Do
not use isopropyl alcohol on extruded Acrylic). Mineral spirits is our
favorite. Wash approved solvents off of windshield with Dawn
dishwashing liquid or equivalent and water followed by a clear water rinse.
To prevent water spots, blow dry with compressed air or wipe dry with
soft cotton flannel.