V-Block Jig to Collimate/Calibrate Laser Collimator
Description
When I Bought My Inexpensive Laser Collimator On Ebay, I Thought I Had Scored A Bargain. Turns Out The Laser Collimator I Bought, Itself, Needed Collimation! The Beam From The Laser Was Off Center By Around 45Mm Over A Distance Of 15M. Close, But Not Good Enough For Collimation Of A Newtonian Reflector Telescope. I Printed This V-Block Jig, Used Hot Melt Glue To Fasten It To A Piece Of Scrap Wood, And Clamped The Assembly To A Counter Top. I Also Put A Parfocal Ring On The Laser Collimator To Give It A Square Shoulder (This Helps When It Is Inserted Into The Eyepiece Holder On My Telescope, But Is Strictly Optional). The V-Block Jig Keeps The Laser Collimator Aligned Securely While You Turn The Barrel. Across The Room The Beam From The Laser Sweeps Out A Circle On The Wall. Adjust The 3 Set Screws On The Collimator To Make The Circle On The Wall As Small As Possible. Dimensions Are Adjustable In The Scad File, But I Found This Size To Fit The Common Laser Collimator From China That Is Sold Under Many Brand Names.
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