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Introduction

Some BoXZYs have inadequate friction towards the back end of the lever in the gantry. These must be sanded to create the necessary conditions for this friction.

  1. Open the lever on the gantry so that the arm is at a 90 degree angle with the gantry. Take a permanent marker and draw thick lines on both of the clamp's bands. Mark the clamp roughly a quarter of an inch away from the lever. You only need to mark the side of the clamp that will face you. Don't worry about marking the top.
    • Open the lever on the gantry so that the arm is at a 90 degree angle with the gantry.

    • Take a permanent marker and draw thick lines on both of the clamp's bands. Mark the clamp roughly a quarter of an inch away from the lever.

    • You only need to mark the side of the clamp that will face you. Don't worry about marking the top.

    • For reference, the marking should be approximately in the middle of the red line drawn in the third photo.

    • When the lever is at a 90 degree angle with the gantry, the line should be on the front most facing part of the clamp's curved section, as indicated by the red circle in the first picture.

    • Your lines do not need to match the pictures exactly. The important thing is that the marking is near the end of the clamp and about a quarter of an inch wide.

  2. After you have drawn the lines, take a piece of 180-220 grit sandpaper and sand the marked area. Continue to sand until the marker is no longer visible. Try to stay within a a quarter of an inch of the marked area with the sandpaper. We recommend you cover your limit switches with masking tape before beginning this process. It will help protect your limit switches in case of damage.
    • After you have drawn the lines, take a piece of 180-220 grit sandpaper and sand the marked area.

    • Continue to sand until the marker is no longer visible. Try to stay within a a quarter of an inch of the marked area with the sandpaper.

    • We recommend you cover your limit switches with masking tape before beginning this process. It will help protect your limit switches in case of damage.

    • Your clamp's surface should look similar to the clamp in the third picture when completed.

    • As you clamp the lever back into place, you will need to adjust the knob to allow you to close the lever.

Finish Line

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Mary Poppins

Member since: 03/22/2016

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