K40 - Head - Adjustment Screws

[@cyberlizardcouk]

love the air assist... that's how i created mine... a bit of 3mm copper tube zip tied onto the air line. super cheap and very effective.

[@bobby4339]

How did you bypass the American Photonics button batteries ?

[@jcbigdaddy9901]

It requires two jumper cables. Check with harbor freight. I think they sell a package of several with alligator clips on the ends. Use a 9v battery. Carefully squeeze one clip and push it up into the end of the AP laser where the button batteries would go. Catch and clip to the spring way up inside. I think that the spring is the + terminal. Clip the other end of that cable to the + of the 9v battery. Clip the other cable to the - of the battery. Touch the other end to the AP last housing and the LED should light. If not reverse the battery connections. When working you can clip to any other metal on the carriage.