tr1gg3r_h4ppy Posted December 23, 2007 Report Share Posted December 23, 2007 Hey guys, I have a decent understanding of the mechbox but I'm baffled as to how the gun changed firing mode. Does the gun change firing modes electronically or mechanically. I'm working on a little electrical piece for the guns currently secret, but I need to know how the gun actually cycles differently in full auto or in semi. Thanks, Brett Link to post Share on other sites
-FIDO- Posted December 24, 2007 Report Share Posted December 24, 2007 when you switch to semi, the cutoff lever disconnects the circuit after one shot look closer at your gears, there you will find a "bump" which engages the lever after one turn of the gear Link to post Share on other sites
Stealthbomber Posted December 24, 2007 Report Share Posted December 24, 2007 The cutoff lever hits a cam on the sector gear and the other end of the lever physically flips the plastic contact block of the trigger switch upward and cuts the electrical flow after one shot. When you move the selector to full-auto it moves the cutoff lever so it doesn't touch the cam on the sector gear. Because the cutoff lever isn't touching the cam the gun keeps shooting. S'funny, it's only a couple of years ago that I nearly got stoned to death on another forum for trying to tell them that the trigger switch flipped upwards after every semi auto shot. Funny old world, innit? Link to post Share on other sites
tiff_lee Posted December 24, 2007 Report Share Posted December 24, 2007 Ah but did you have the power of the 'mod' then On a side note would I be correct in saying the V3 differs slightly in that the actual selector plate itself is moved as well? Link to post Share on other sites
tr1gg3r_h4ppy Posted December 24, 2007 Author Report Share Posted December 24, 2007 Ah thanks guys, is there a picture of this little nub that any of you could dig up for me? Link to post Share on other sites
tiff_lee Posted December 24, 2007 Report Share Posted December 24, 2007 Google is your friend clicky! Not the best picture but what you see is the underside of the sector gear, that lil cam profile is what lifts the cutoff lever as mentioned. Link to post Share on other sites
renegadecow Posted December 24, 2007 Report Share Posted December 24, 2007 On V3 gearboxes (those that do have selector plates) work in the same way as any other gearbox for fire selection. What happens is that when the plate is moved to the semi-auto mode, the cut-off lever is made free to function for every shot and the whole business that stealthbomber told comes into play. Move the selector to auto and the cut-off lever is forced upwards, keeping it from engaging the plastic contact block. That little nub is on the left side of the sector gear (gear engaging the piston). edit: V3 gearboxes work the same but also have an electronic cut-off for the safe setting. Moving the plate far enough disengages the entire circuit which becomes an additional safety to the trigger blockage. Link to post Share on other sites
tiff_lee Posted December 24, 2007 Report Share Posted December 24, 2007 But do they work exactly the same though? they have contacts on the selector where as a V2 doesn't thats not the same, i'm pretty sure when I fire my g36 in semi the selector plate physically moves everytime as well. Link to post Share on other sites
Stealthbomber Posted December 24, 2007 Report Share Posted December 24, 2007 I'm pretty sure almost all gearboxes work by disconnecting the leccy when you move the selector to safe, not just the V3. Link to post Share on other sites
Yuri Posted December 24, 2007 Report Share Posted December 24, 2007 The selector plate on a G36 does not move when you fire it in semi. It works the same way as other gear boxes do. Link to post Share on other sites
Tom Andrews Posted December 24, 2007 Report Share Posted December 24, 2007 I'm pretty sure almost all gearboxes work by disconnecting the leccy when you move the selector to safe, not just the V3. Some of the Chinese clone gearboxes - AK for instance have the electrical blanking plate on the end of the selector strip removed and the twin contacts on the side of the switch block soldered together. Link to post Share on other sites
tiff_lee Posted December 25, 2007 Report Share Posted December 25, 2007 Yea apologies dunno where that came from I appreciate the trigger contacts are disengaged never questioned that for a moment not sure where I got selector moving from my bad :S Link to post Share on other sites
tr1gg3r_h4ppy Posted December 25, 2007 Author Report Share Posted December 25, 2007 Thank-You all for the replies, I think I get it, ahaha, thanks very much. Link to post Share on other sites
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