The adjustable angle stage from LBTEK provides a full 180° range of motion with 15° increments and an accuracy of ±20 arcmin. Utilizing the integrated location pins, the stage can be securely fixed at any of 13 discrete positions. The stage is clearly marked with angle indicators and corresponding location pins for each position. In addition to these predefined positions, the stage can be locked at any arbitrary angle by tightening the socket screws. Both the top and base plates feature M6 tapped holes and M6 slot hole arrays. To adjust the angle between the plates, loosen the side socket set screws and remove the location pin. Rotate the top plate until the white mark on its hinge aligns with the desired angle marker on the base plate hinge. Then insert the location pin into the slot indicated by the letter in parentheses next to the selected angle, and securely tighten the side socket screws.

The knuckle-type base from LBTEK is a high-precision ball hinge mounting stage that enables free spherical motion across the entire hemispherical range. A heavy-duty M6 socket head fixing screw ensures positional stability. This base is suitable for flexible inspection systems (e.g., video or optical microscopes), target positioning, and probing systems, supporting concentrated loads up to 50 kg or cantilever loads up to 20 N·m. The mounting stage features a 5×5 array of M6 tapped holes with 12.5 mm center-to-center spacing. The stage can be rotated to any position with up to 90° tilt relative to the base, while the entire ball hinge mechanism provides 360° rotation around the vertical axis. Laser-engraved graduations are marked at 2° increments with numeric labels every 10°. Note: When locking the stage, first use a 3 mm key to counterclockwise retract the screw at the TENSION position, then use a 5 mm key to clockwise tighten the LOCK screw firmly; when releasing the stage, first use a 5 mm key to counterclockwise retract the LOCK screw, then use a 3 mm key to clockwise tighten the TENSION screw.