View Poll Results: Who is interested in an integrated LPR Foregrip?

Voters
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  • Iím interested if: The planets align and Saturn is at equinox... This covers all contingencies

    56 90.32%
  • No thanks; Iíll stuff a LPR in my grip frame.

    6 9.68%
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Results 241 to 269 of 269

Thread: LPR Foregrip

  1. #241
    Join Date
    Aug 2011
    Location
    Marseille - France
    Posts
    405
    Good idea !
    I note it to remember it.

  2. #242
    Join Date
    Nov 2012
    Location
    Finland
    Posts
    441
    Quote Originally Posted by maverick13 View Post
    Good idea !
    I note it to remember it.
    I think need4reebs was the one I got the idea from so he should get the credit.

  3. #243
    Join Date
    Aug 2011
    Location
    Marseille - France
    Posts
    405
    Not surprising !

    Need4reebs has one idea per minute..... When he is tired ! Usually it's 2 per minute !

    Thanks, Ben !

  4. #244
    Quote Originally Posted by maverick13 View Post
    That's true.
    In this particular setting (I've almost the same on my RPG mag), it's nice because the the frame is longer than the fg.
    But I'm not sure it would look so nice with a short frame.
    When I look at your pic of the lpr with your vert frame, I think it would be nicer with a 90 screwed at the bottom than it would look with a straight macro inside the lpr and the macro going out of it.

    But it's just a personnal opinion about the "look", and I'm sure you do the maximum to get the best part possible.
    I thought the same thing in relationship to the smaller luke vert frame and the lpr/grip. I wonder what it might look like to drill out a hole, or a channel for a macroline tube in the apron of the lpr/grip bottom. It might make it so a ccm 90 degree fitting would work to avoid a big bend in the macro tubing?

  5. #245
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,642
    If you guys dont care about the extra weight I'll do away with the cavity, but I won't do both. Over-all I would classify it as being a considerable increase in weight though.

  6. #246
    I like the cavity myself. My previous comments where just ideas building off of previous suggestions that were posted.

    I like the the length and meatiness of the grip.
    Last edited by barkingspider; 03-22-2014 at 09:09 PM.

  7. #247
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,642
    Honestly I think you would be a mistake to produce it without the cavity.

  8. #248
    Quote Originally Posted by luke View Post
    Honestly I think you would be a mistake to produce it without the cavity.
    With the cavity please. C'mon guys... I go to the gym, but I'm not trying to lug around dumbbells on the playing field.

  9. #249
    Join Date
    Nov 2012
    Location
    Finland
    Posts
    441
    Yeah. With cavity. We can always use extender if we want to use 90į fittings.

  10. #250
    Join Date
    Feb 2002
    Location
    'Merica
    Posts
    2,488
    The cavity is fine... leave it... if the grooves are gone those of us inclined to could shorten it without them running off the edge.

  11. #251
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,642
    The initial tests of both units were a great success, didn't find anything discouraging. These first tests I was only able to use a shop compressor with a PSI of 135. But this was enough to test the basic design and concept. I didn't find any air leaks, LPR holds its setting and is fully adjustable. I tested at 22 cycles per second with the LPR set at 65 psi and only got a fluctuation of 8 psi. Even the lower settings only fluctuated 10 psi. I still need to feed about 950 psi to it for final testing but so far so good.
    Last edited by luke; 03-24-2014 at 04:47 PM.

  12. #252
    Join Date
    May 2006
    Location
    New York
    Posts
    180
    Good to hear the positive test

  13. #253
    With the LPR equipped, would the use of a SHP regulator still be acceptable?

  14. #254
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,642
    Should handle 1500 psi in...

    That was the question, right?
    Last edited by luke; 03-24-2014 at 07:32 PM.

  15. #255
    Quote Originally Posted by luke View Post
    Should handle 1500 psi in...

    That was the question, right?
    Yes, it does. Does 1500 psi cover any spikes that might happen as well? When a spike happens, do you have a ballpark guess on what the psi increase would be?

  16. #256
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,642
    Why are you expecting spikes?

  17. #257
    Quote Originally Posted by luke View Post
    Why are you expecting spikes?
    I'm not. I was just curious.

  18. #258
    Join Date
    Feb 2008
    Location
    Boulder, Colorado
    Posts
    919
    suddenly I have the desire to make a pneumag again.... tnx luke

  19. #259
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,642
    Did more testing today at full input pressure and everything looks good.
    I'll do more testing tomorrow if I can locate a low pressure gauge locally, my $6 ebay gauge took a crap.

  20. #260
    It looks like you already have things covered, but I thought I would at least pass this along. Palmers rock o meter has a lot of features that would be very helpful for testing.

    http://palmer-pursuit.com/cart/rock-...r-ii-p-72.html

    I've had this for a while and use it on my pneumags. It makes it very easy to dial in.

  21. #261
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,642
    Is it just a manifold to monitor/adjust the low pressure air coming out of a LPR? If so that is what I made.

  22. #262
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,642
    Well I've finished up testing, I can't find any issues or adjustments that need made, I think it's a viable part.

  23. #263
    Join Date
    Feb 2008
    Location
    Somewhere out west.
    Posts
    421
    Okay I will take it. Just send me an invoice...lol.

  24. #264
    Quote Originally Posted by luke View Post
    Well I've finished up testing, I can't find any issues or adjustments that need made, I think it's a viable part.
    Shooting video

  25. #265
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,642
    This was all mechanical testing not on a marker. It was actually tested on my milling machine using a SCUBA tank providing the air. The milling machine provide constant and measurable cycling rates for consistency, not all that exciting to watch.

    Tester set up>


    Ninga Reg>


    MSV2 actuator, ran at 660 RPM (X 2 per revolution) = 22 cycles per second>


    Pretty boring.

  26. #266
    Join Date
    Jul 2002
    Location
    Mass
    Posts
    385
    So when does the sale thread go up.

  27. #267
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,642
    Still trying to figure some things out on pricing..

  28. #268
    Join Date
    Apr 2010
    Location
    triple mag shop.
    Posts
    3,065
    that's neat you posted that up.
    its always cool to see behind the scene
    My sydarm weighs less than yours!!!

  29. #269
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,642
    Sale thread is up.

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