I have managed to put together a 3D model of a coaxial adaptor. It's 50mm 25mm x 25mm, should weigh less the 200g and gives 5mm vertical and 8mm lateral adjustment.
I can either build it into a bipod or simply make it as an adaptor that sits between your existing bipod and the rifle (assuming standard slot rails).
I have no idea on price as yet but who would be interested if I can get some made?
Buggered if I can figure out the animation package on Autodesk, here's a clip from my phone.
Well I'll try and get some knocked up and see how they go.
Looking at the SEB it only offers cant, this one doesn't. Does it need to, or is vertical and lateral going to do the job? I shoot F open and it works for me, just not too sure on a bipod?
Has anyone got accurate dimensions for the mounting slots?
I can make all the other cuts with standard bits, but that one I'll need to buy.
Tim L wrote: Looking at the SEB it only offers cant, this one doesn't. Does it need to, or is vertical and lateral going to do the job? I shoot F open and it works for me, just not too sure on a bipod?
Vertical and lateral will do fine Tim. You can fix the cant with the bipod it's attached to. I was having a look at the picture you posted - how does it tighten up into the accessory rail on the stock?
Tim L wrote: Looking at the SEB it only offers cant, this one doesn't. Does it need to, or is vertical and lateral going to do the job? I shoot F open and it works for me, just not too sure on a bipod?
Vertical and lateral will do fine Tim. You can fix the cant with the bipod it's attached to. I was having a look at the picture you posted - how does it tighten up into the accessory rail on the stock?
Barry
Ah yes!
That would have been about revision 3. I've taken that "T" structure off and extended the "lid" so there are a couple wings with holes front and rear. I'll make a bar with threaded holes that slides into the accessory rail. It will be 45mm long so should be OK even on a short rail.
I need dimensions of the accessory rail slot. I'm guessing at 12mm x 4mm with a 6mm gap for the screws??
I've modified the geometry from that video clip as well. At max elevation the control lever doesn't go above level. I'm trying to stay away from a bent control rod but it may have to be.
The test will be whether it can hold the weight of the rifle rather than the shooter having to support it.
Tim L wrote: I need dimensions of the accessory rail slot. I'm guessing at 12mm x 4mm with a 6mm gap for the screws??
....
The test will be whether it can hold the weight of the rifle rather than the shooter having to support it.
I can't get my caliper into the rail but can easily measure the T-shaped piece of my bipod which slides into it. Width of the upright is 9.1mm. This dimension of the rail is easily measured and is 10.0mm. Width of the cross piece is 13.0mm so you might guess the rail is machined to be 14.0mm. Thickness of the cross-piece is 1.8 - 1.9mm so perhaps the slot in the rail is 2mm?
Hope I've made myself clear and been of some assistance. As for the mechanism supporting the weight of the rifle - I don't think that's a necessity as long as it's not too slack.
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