I made this GoPro speargun mount version 2. When I used to attach GoPro on my Riffe Euro 100X, it has worked great. However, mounting the camera at the very end of the gun was not ideal since the camera was too far from targets. I have had this Mako Predetor 110 speargun, which was not very expensive compared to my other guns like Mori and Riffe. I decided to use this railgun for the test bed. I got all the stainless steel parts from Homedepot for $6. I had to shape the muzzle a bit to fit the screw and the nut. I observed the shot with GoPro Hero2 on my mask at 120FPS to see if the sling will hit the camera. I also wanted to make sure the shooting and reel lines do not interfere with the camera bracket. All seemed to work well. I just have to try with two bands next time.
Parts used:
1 X 3/4 X 1/8 Aluminium Bar (I already had this)
1 X #10-24 3″ Stainless Steel Phillips pan head screw
2 X #10-24 Stainless Steel Hex lock nuts nylon insert
1 X #10-24 Stainless Steel Cap Nut
2 X #10 Stainless Steel Lock washer internal tooth
1 X M5-8 25mm Stainless Steel Phillips pan head cut down to fit
2 X M5 Flat Washer Flat Washer
2 X M5 Flat Washer Lock Washer
1 X Nylon tube for covering screw thread
My second round of testing after modifications.
Build List
Automation Direct
2x A12020DP Cylinder 3/4″ Bore 2″ Stroke DBL Acting Rear Pivot Mount
4x APB-2 Pivot Mounting Bracket No Pin
2x ARC-14-28 Rod Clevis 1/4-28 Thread
1x BFMC-18N MALE CONN 5/PK 1/8in MNPT TO 1/8in MNPT
1x BFMT-18N MALE TEE 2/PK 1/8in MNPT (2) 1/8in FNPT
1x ME14-18N MALE ELBOW 5/PK
2x MS14-18N MALE STRAIGHT 5/PK
1x PU14BLK100 TUBING, PUR, 1/4 IN OD, BLACK, 100 FT PACKAGE
Fright Props
2x 0917-0001-12v DC 4-Way 5-Port Valve with 1/8 Inch Ports : 12VDC
1x 0912 PicoBoo
Lowes
1x 6005 2×4 8ft
6x 308908 3 1/2″ Door Hinges
2x 50933 1/4-20 Nylon Insert Locknuts (25 pack)
36x 63313 1/4-20 x 2 Hex Bolts
36x 63306 1/4 Flat Washers
Tools Used
Mitre Saw
Drill/Driver
Sockets/ratchet
Wrenches
Thread tape
Razor Knife
Small Flathead Screwdriver