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Search: Posts Made By: popgun pete
Forum: All About Guns Today, 02:26 PM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

You get more stretch travel for the same force on thinner bands. Bands can be thought of like an onion cut in cross section with rubber tubes of increasing diameter stacked on each other. More...
Forum: All About Guns Today, 01:54 PM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

http://www.addictionspears.com/
Forum: Off Topic Area Yesterday, 01:43 AM
Replies: 3,229
Views: 2,453,092
Posted By popgun pete
Re: The Spearboard Bikini Thread

By way of absolute contrast a French postcard from the very distant past.
http://www.spearboard.com/attachment.php?attachmentid=245292&d=1585809799
Forum: All About Guns 04-01-2020, 04:46 PM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

I watched that at low speed, but the moment of shot blurs the action with the camera on the gun.
Forum: All About Guns 04-01-2020, 02:50 PM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

They don't try to overpower the shaft with too many bands as the inverted rollers halve the tension in the wishbone, except for the kicker band, as you know. The multi-band ballasted guns place a...
Forum: All About Guns 04-01-2020, 07:16 AM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

A speargun needs a track for loading so that the spear can be pushed into the sear box using the track as a guide. The fitting of tracks certainly improved tube guns. With open muzzle guns you need...
Forum: All About Guns 04-01-2020, 04:07 AM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

If you click sequence that photo series B1, B2, B3 then you can see the gun hand is pushed back as evidenced by the drag on the cuff of the glove causing it to bell out as the gun begins to tilt up,...
Forum: All About Guns 03-31-2020, 03:14 PM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

Here are the images combined with a white line through the shaft and a red line through the gun. A flick comparator is a handy way to look for movement, unlike this image, but it allows measurements...
Forum: All About Guns 03-31-2020, 02:40 PM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

If you click through these photos look at your hand and the cuff of your glove to see what is going on with the recoil. The timing clock readout is a bit misleading, but look at the red line...
Forum: All About Guns 03-31-2020, 08:09 AM
Replies: 94
Views: 2,426
Posted By popgun pete
Forum: All About Guns 03-31-2020, 07:35 AM
Replies: 15
Views: 389
Posted By popgun pete
Re: Bleutec linerelease

You may have to if there is a nut that falls down when you undo the pivot screw, but unlike us you have the gun directly in front of you, so you are in the best position to work it out. If you look...
Forum: All About Guns 03-30-2020, 10:14 PM
Replies: 15
Views: 389
Posted By popgun pete
Re: Bleutec linerelease

Looks like one of them here, may be a screw if it has a slotted head.
Forum: All About Guns 03-30-2020, 04:31 PM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

All spearguns create a couple trying to twist gun up around your hand.
http://www.spearboard.com/attachment.php?attachmentid=245274&d=1585603848
Forum: All About Guns 03-30-2020, 02:43 PM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

Lens distortion tends to banana that image. The best way to judge what is going on is to see the whole gun and some constant reference horizon that does not move in the photo frame. In your earlier...
Forum: All About Guns 03-30-2020, 02:23 PM
Replies: 15
Views: 389
Posted By popgun pete
Re: Bleutec linerelease

Spearq8 failed to look at your photos or he would have realized that your gun's line release is at the back of the mechanism. As you can see it has a window on either side of the mech and you should...
Forum: All About Guns 03-30-2020, 06:27 AM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

Eurogun models which you shoot with one hand, and maybe two if you cup one hand over the other, will always lift unless the gun is heavily ballasted in which case it will not really be a eurogun. ...
Forum: Off Topic Area 03-30-2020, 01:19 AM
Replies: 3,229
Views: 2,453,092
Posted By popgun pete
Re: The Spearboard Bikini Thread

Looking for some action.
http://www.spearboard.com/attachment.php?attachmentid=245245&d=1585549168
Forum: All About Guns 03-30-2020, 12:51 AM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

One way to look at it better would be to make a short video loop of the actual shots from this angle and compare them. I have just done the shot at 2.35 seconds.
Forum: All About Guns 03-30-2020, 12:09 AM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

It is just the gun kicking up with the recoil, the muzzle is going up and the handle is going down, check out the full sequence.

Maximum force is when the sear tooth lets go, the spear tail exits...
Forum: All About Guns 03-29-2020, 10:11 PM
Replies: 15
Views: 389
Posted By popgun pete
Re: Bleutec linerelease

Line runs from shaft tab to nose tab or hook, then over the spear and down to trap it, and then can run back to either side from underneath the muzzle.
Forum: All About Guns 03-29-2020, 09:25 PM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

Ran the video at quarter speed and froze two images before and during the shot. Check the muzzle by flicking between images. Added another image with a second attempt at freezing, note the clock...
Forum: All About Guns 03-29-2020, 08:46 PM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

If you stand a long shaft on its nose vertically and tap it on the side then you see that they can get quite a wobble up, also if you push down hard on the shaft at the tail you can bow it, but much...
Forum: All About Guns 03-29-2020, 05:51 PM
Replies: 15
Views: 389
Posted By popgun pete
Re: Bleutec linerelease

I don't know, but it may have been bent as there is no reason for it to be facing slightly downwards. Take the lever out and use a hammer to flatten it against a solid flat surface like a bench vice...
Forum: All About Guns 03-29-2020, 05:10 PM
Replies: 15
Views: 389
Posted By popgun pete
Re: Bleutec linerelease

You should be able to switch the line release lever to the other side of the mech by taking the pivot screw out and turning the lever over.
Forum: All About Guns 03-29-2020, 04:18 PM
Replies: 94
Views: 2,426
Posted By popgun pete
Re: Made a 145cm inverter, 10mm shaft

If the shaft hits where the gun is pointed then does it really matter? I have not slow motioned the video yet, but the gun body outweighs the mass of the bands by a big margin. I am sure that there...
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