How To Use A Neptonics Speargun Trigger Jig
When you build your own speargun getting the trigger mechanism alignment right is critical in the function of the speargun. This is always a tedious process, but now it is made easier by the Neptonics Speargun Trigger Mech Jigs. The Neptonics Speargun Trigger Jigs are simple and easy to use. Each Trigger Mech has its own jig that gives the perfect measurements for our mechs. These measurements are for both the retaining pins and line release slots and pins.
How To Align the Retaining Pins and Line Release Slot
The retaining pin holes line up when the jig is flush with the top of the trigger mech. The trigger jig also needs to line up flush with the front of the trigger. The best method is to get your spear shaft in your track and engaged in the trigger mech. This ensures the trigger mech is in the right placement for the jig. From there you can line up your jig on the mech and mark where you need to drill. The line release slot is also ready to be marked. You can either use a drill or a router table to complete the line release slot.
How to Align the Line Release Pin
To se the line release pin you need to determine the width of your speargun blank. If the blank is narrower than two (2) inches use the “-2.00” line release pin hole. If the blank is in excess of two (2) inches, like a big bluewater speargun, you may need to use the “2.00” line release pin hole on the jig. Most spearguns are narrower than two inches.
From there you need to line up the jig with the side of the right side of the trigger mech flush with the front of the mech. That will help you determine the correct placement of the line release pin hole.
For further clarification you should watch the video.