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Overview
Overview
In this step, you'll glue the gel pad and polished lens together with a clear silicone adhesive. This will form the replaceable component of the sensor. When the gel wears out, you can pop this subassembly out of the sensor housing and replace it with a new one.
Step-by-Step Instructions
Step-by-Step Instructions
Put on nitrile gloves to protect your skin from the isopropyl alcohol and silicone adhesive
Clean the gel pad
Spray the microfiber cloth with isopropyl alcohol
Wipe the unpainted surface of the gel pad to remove any fingerprints or dust
Set the clean gel pad aside, gel-side down
Clean the lens
Spray the microfiber cloth with isopropyl alcohol
Gently wipe both sides of the acrylic to remove any fingerprints or dust
Note: Repeated use of alcohols on acrylic can degrade the material. Wipe sparingly and gently.ÂSet the clean lens aside
Uncap the adhesive and dispense a dime-sized amount of adhesive onto the center of the unpainted side of the gel pad as shown below
Dispensing a pea-sized amount of silicone adhesive onto the clean and unpainted side of the gel pad
Press the lens into the adhesive on the gel pad
Gently push and twist the lens into the gel pad until there are no bubbles in the adhesive and it's in a thin, clear layer between the lens and gel pad
Center the lens inn the gel pad
If attaching the lens to a gel pad with shear tracking markers, align one LED recess with the grid pattern as shown below
Shear tracking markers aligned with a recess in the lens
Clean excess adhesive
Using several precision cotton swabs, gently clean the excess adhesive from the edges of the lens
If you nudge the lens out of the center or rotate it out of alignment, simply nudge it back into place
Let cure for 24 hours undisturbed
Using a precision cotton swab to clean excess adhesive
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