Introduction
This manual provides detailed instructions for the proper use and maintenance of your Faber-Castell 171200 TK-System Drawing Board Square. Designed for precision and durability, this tool is an essential component for technical drawing on compatible Faber-Castell drawing boards.
The Faber-Castell 171200 TK-System Drawing Board Square is crafted from high-quality, shock-resistant plastic, ensuring resilience against impacts and compass points. It integrates seamlessly with Faber-Castell A3 and A4 TK-System drawing boards, facilitating accurate and stable drawing operations.

Image: The Faber-Castell 171200 TK-System Drawing Board Square, showing its L-shaped ruler and integrated protractor head.
Setup
- Prepare Drawing Board: Ensure your Faber-Castell A3 or A4 TK-System drawing board is clean and placed on a stable, flat surface.
- Attach Drawing Square: Carefully slide the Faber-Castell 171200 Drawing Board Square onto the parallel rule of your drawing board. The square should fit snugly and move smoothly along the rule.
- Secure Paper: Use the instant clamps on your drawing board to firmly hold your drawing paper in place.

Image: The Faber-Castell 171200 Drawing Board Square correctly attached to the parallel rule of a drawing board, ready for use.
Operating Instructions
1. Adjusting Angles
- The integrated drawing head allows for precise angle adjustments.
- To set an angle, rotate the drawing head to the desired position. The square offers a rotation range of up to 90 degrees.
- The mechanism includes detents every 15 degrees, providing quick and easy settings for common angles.
- For angles not at 15-degree increments, fine adjustment is possible to achieve precise degree settings.
2. Locking Mechanism
- A locking button is provided to secure the drawing square at a specific position along the parallel rule.
- Press the locking button to engage the lock, preventing the square from moving. Release the button to allow free movement.
- The locking button also helps to fix the angle of the drawing head once set.
3. Reading Angles
- An integrated display window on the drawing head provides a clear reading of the currently set angle.
- Ensure good lighting to accurately read the angle markings.

Image: A detailed view of the drawing square's protractor head, highlighting the angle scale, display window, and locking button for precise adjustments.
Maintenance
- Cleaning: Clean the drawing square regularly with a soft, damp cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the plastic material and markings.
- Storage: Store the drawing square in a clean, dry environment, away from direct sunlight and extreme temperatures. This helps prevent warping or degradation of the material.
- Inspection: Periodically inspect the square for any signs of wear, damage, or debris that might affect its accuracy or smooth operation.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Drawing square does not slide smoothly. | Debris on parallel rule or square mechanism; uneven board surface. | Clean the parallel rule and the square's sliding edges. Ensure the drawing board is on a flat surface. |
| Angle adjustment feels loose or inaccurate. | Locking button not fully engaged; internal mechanism obstruction or damage. | Ensure the locking button is pressed firmly. Inspect the adjustment mechanism for any foreign objects. If damage is suspected, contact support. |
| Markings are difficult to read. | Poor lighting; dirt or smudges on the display window. | Ensure adequate lighting. Clean the display window with a soft, dry cloth. |
Specifications
- Model Number: 171200
- Brand: Faber-Castell
- Dimensions (L x W x H): 30.5 x 23.2 x 4 cm (approximately 12 x 9.1 x 1.6 inches)
- Weight: 222.26 grams (approximately 0.49 lbs)
- Material: High-quality, shock-resistant plastic
- Rotation Range: Up to 90 degrees
- Angle Detents: Every 15 degrees
- Compatibility: Faber-Castell A3 and A4 TK-System drawing boards
- Features: Locking button, fine angle adjustment, display window
Warranty Information
For specific warranty terms and conditions related to your Faber-Castell 171200 TK-System Drawing Board Square, please refer to the documentation included with your purchase or visit the official Faber-Castell website. Warranty coverage typically addresses manufacturing defects under normal use.
Support
Should you require further assistance, technical support, or have questions regarding your Faber-Castell 171200 TK-System Drawing Board Square, please contact Faber-Castell customer service or visit their official website for support resources and contact information.
Official Website: www.faber-castell.com