Astronomical Telescope Laser Pointer Optical Axis Collimator

An extremely low-cost astronomical telescope optical axis collimator, used to collimate the optical axis of Newtonian reflecting astronomical telescopes, can correct the laser's own deviation, and is compatible with 1.25-inch focuser interfaces.

Required parts: 14mm diameter laser pointer, M4*10-15 countersunk screw x1, M4 nut x1,

Instructions: Install the parts as shown in the picture. Place the nut into the square hole of the buckle; there are versions of the buckle with or without a nut. After assembly, insert the laser pointer into the buckle. Rotate the laser pointer so the laser shines into the platform slot. Twist the buckle to direct the laser into the upper through-hole. Observe the laser position in the lower hole, and adjust the laser to exit through the lower hole. Tighten the screw to fix it. Gently pull out the lower collimation barrel, then insert the collimator into the focuser for calibration.

If the parts wobble, use transparent tape to wrap the barrel to reduce tolerance. The buckle size can be easily edited using slicing software to adapt to various sizes.