Vernier Height Gage

Summary

This tutorial demonstrates how to calibrate and use a veneer height gauge, emphasizing the importance of accurate alignment for precise measurements. It explains the process of ensuring the zero on both the plate and scale are perfectly aligned and provides step-by-step instructions on how to measure in both imperial and metric units. The video also covers how to adjust the gauge using fine-tuning and adjustment screws, offering clear guidance on preventing measurement errors. This step-by-step guide ensures users calibrate their tool correctly for optimal performance.

Takeaways

• 😀 Make sure the veneer height gauge is calibrated correctly before use.
• 😀 Zero the scale and the plate so that they align exactly, not just closely.
• 😀 The veneer gauge has a fine tuner that can be used to adjust readings for precision.
• 😀 Always calibrate the gauge on a flat surface, like a surface plate, for accuracy.
• 😀 Check both the inch and metric scales for proper measurements.
• 😀 In inches, each tick mark represents 0.050 inches, so use the scale to read more precise measurements.
• 😀 For metric readings, note that the scale is in centimeters, but millimeters are used for finer measurements.
• 😀 The metric scale's smaller increments are read in hundredths of a millimeter.
• 😀 When calibrating, loosen the adjuster to move the scale up or down, but ensure the zero marks align perfectly.
• 😀 Incorrect calibration will lead to inaccurate readings, so always verify the zero alignment before measuring.
• 😀 After calibration, you can lock the scale in place and make precise measurements for both inch and metric units.

Q & A

What is the purpose of calibrating the veneer height gauge?

The purpose of calibrating the veneer height gauge is to ensure that the zero on the plate and the zero on the sliding scale align perfectly, providing accurate measurements.

How do you ensure that the scale is calibrated correctly?

To ensure the scale is calibrated correctly, you need to adjust the sliding scale until the zero on the plate matches exactly with the zero on the scale. Fine adjustments can be made using the fine-tuning knob.

Why is it important to calibrate the gauge before using it?

It is important to calibrate the gauge because if the zeros are not aligned, all subsequent measurements will be inaccurate, leading to faulty readings.

What should you do if the scale is not aligned at zero?

If the scale is not aligned at zero, loosen the calibration screw and adjust the scale until both zeros align precisely. Once aligned, tighten the screw to secure the position.

How do you read the imperial measurements on the veneer height gauge?

Imperial measurements are read by noting the inch mark and counting the tick marks between the numbers. Each tick represents 0.0005 inches. For example, 1 inch and three ticks would equal 1.500 inches.

How is the metric measurement scale different from the imperial scale?

The metric scale is graduated in centimeters, where each centimeter represents 10 millimeters. To read the millimeters, count the marks between the numbers on the scale.

What does the right side of the metric scale measure?

The right side of the metric scale measures in hundredths of a millimeter, with markings for 0.02 mm increments.

Why should the gauge be placed fully down on the surface plate when measuring?

The gauge should be placed fully down on the surface plate to ensure accurate measurement and avoid any displacement that could lead to errors in the reading.

How can you fine-tune the scale if needed?

You can fine-tune the scale using the fine-tuning knob, though it is generally more effective to make larger adjustments by loosening and tightening the calibration screw.

What should you check after calibrating the gauge?

After calibrating the gauge, you should re-check that the zero on both the plate and the scale are still perfectly aligned before tightening the screw.