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  1. #91
    Join Date
    19th January 2009
    Location
    Washington D.C.
    Posts
    14,849
    Oh Man! What a Perfect Launch Day!
    Couldn't have been a more glorious day. Med 60 to low 70's, Light breeze to about 10mph all day, perfectly clear sky.
    had a great time launching from the new Nanobeam Rail using 00-90 button head stainless steel machine screws with 1/16" OD x 1/32" long PTFE Sleeves & 1/8" dia. polycarbonate washer. I've found the length of the sleeve is critical to keeping the models Locked in the rail without binding in the slot.
    I used two different models a minimum diameter T2+ 3F&NC micro model about 5g LOWt. and a BT-5 scale like model, 10.7g LOWt I've been working on with 4 clear lexan fins.
    Both models we fitted with 00-90 Nano buttons, sleeve & washer set up as mentioned above. Even when launched into cross breeze gusts to about 12mph the models flew perfectly straight to apogee. I'm very happy with how these models performed off the NanoBeam rails.
    My plan is to start using these 00-90 button head MS on most of my new Micro Maxx Scale models and likely a few Sport flying models as well.
    I did shoot videos of the lift-offs but apparently I don't have the correct connecting cable to download them yet.
    I did catch both NanoBeam models coming off the rail just after ignition... I'm shocked as I've not been very good a catching Micro Maxx Liftoffs in the past.
    A couple of those photos are show below.

    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Keep em Flyin Micronzied
    John
    Mrcluster/Micromeister
    Nar-15731
    Co-moderator MicroMaxRockets yahoo group.
    http://groups.yahoo.com/group/MicroMaxRockets/
    Narhams Section 139 - ROMCC

  2. #92
    Join Date
    25th January 2009
    Location
    Glennville, GA
    Posts
    17,698
    Here are my photos. Sorry for the delay. http://www.rocketryforum.com/showthr...00#post1574200

    -----------------------
    Chuck Haislip
    NAR/Tripoli Level 3
    Retired Prefect ICBM - TRA #60

    Level 1 - LOC Minie Magg; Level 2 - PR Broken Arrow;
    Level 3 - 10 inch Nike Smoke
    2015 Ns for Year: 1315 Newtons
    My rockets usually fly naked. If they survive, they earn their paint.

    Come fly with ROSCo or ICBM in Camden SC => http://rocketrysouthcarolina.org

  3. #93
    Join Date
    26th June 2016
    Location
    Mobile, AL, USA
    Posts
    845
    Quote Originally Posted by Micromeister View Post
    Doh! sorry I typed a comma where a period should have been. The link is fixed. but I'll type it here agian www.narhams.org

    Edit: I'll try to up-load the .pdf version of TechTip-021 here if the file isn't to large.
    Thank you so much for this! I'm returning after a few decades away from the hobby and all this "rail" and "rail button" stuff is all new to me, but I could tell it was newest, best thing. I have no intention of getting into HPR, or Micro, but I'm pretty sure I want to use the rail system for all of my future LPR/MPR builds. Thanks again.

  4. #94
    Join Date
    21st May 2014
    Location
    Gardendale, AL
    Posts
    1,822
    Quote Originally Posted by TangoJuliet View Post
    Thank you so much for this! I'm returning after a few decades away from the hobby and all this "rail" and "rail button" stuff is all new to me, but I could tell it was newest, best thing. I have no intention of getting into HPR, or Micro, but I'm pretty sure I want to use the rail system for all of my future LPR/MPR builds. Thanks again.
    Well they may be called "micro" buttons, but don't let that fool you. These buttons are perfect for LPR rockets. So far we've used them on up to BT-60 kits. I'd venture to say they'd work on BT-80 kits up to E engines. I'm not sure they're the best option though.

    For D and E engines, my personal recommendation is to use the mini buttons. And I'd be very comfortable using the through G engines. Heck, I'd probably trust them on baby H engines. I have 3 sizes in rails now. I've found no need to go to 1515 buttons just yet. And we're still exploring the nano buttons for MicroMaxx rockets. So no perfect fits there yet.
    NAR #99604 L2
    L1 - 08/15/15 - Estes Partizon - Aerotech H128W - Birmingham, AL
    L2 - 02/04/17 - MadCow 4" PAC-3 - Aerotech J350W - Talladega, AL
    L3 - TBD

  5. #95
    Join Date
    30th January 2009
    Posts
    290
    Has anyone tried using mini or micro rail for high power (J, K) launches? Not huge rockets, but something like a minimum diameter 38 or 54mm where one would want a lower-profile rail guide than a 1010.

  6. #96
    Join Date
    13th October 2014
    Location
    SouthEastern, WA
    Posts
    4,742
    Quote Originally Posted by CoyoteNumber2 View Post
    Has anyone tried using mini or micro rail for high power (J, K) launches? Not huge rockets, but something like a minimum diameter 38 or 54mm where one would want a lower-profile rail guide than a 1010.
    Probably better off going with a tower or some of wfcook's fly-away rail guilds, personally the micros and mini rail buttons might be a bit on the small side for high performance HPRs, although the mini's rails are not all that much smaller than the 1010 rails (20mm vs. 25mm iirc).
    Rich

    NAR# 99154

    L3-4x upscale Estes Cherokee-D- AT M1297W 5/28/2016 http://www.rocketryforum.com/showthr...r-rharshberger

    TriCities Rocketeers NAR section# 736 http://www.tricitiesrocketeers.org/

  7. #97
    Join Date
    9th August 2013
    Location
    Vermont
    Posts
    9,890
    I have found a 5" section of aluminum T to fit a Makerbeam, but cutting, sanding aluminum is messy, and so I must devise a clever way to remove the part I need. It is currently trapped in a piece that used to be the hanger bracket for my closet doors in my bathroom.
    Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn

  8. #98
    Join Date
    28th October 2015
    Posts
    11
    Quote Originally Posted by TopRamen View Post
    I think what I'll try about the screw threads when using screws for buttons is fill them with JB Weld, then sand them smooth.
    That seems to solve that.
    If you can find a tiny enough one, the telescopic antenna from AM/FM radios have the tiniest section that can be cut into tiny sleeves.

    I'll try the JB Weld on this one, since I'm using JB Quick on the Fins anyhow. It's Makerbeam size, but will be a good test for this method.


    Attachment 287653
    Just use the brass sleeve from a servo mounting kit it has a flange you place against the body tube so you get the perfect spacing and works perfect with a #2 brass screw in makerbeam rail
    Last edited by Joel621r; 22nd November 2016 at 10:50 AM.

  9. #99
    Join Date
    26th June 2016
    Location
    Mobile, AL, USA
    Posts
    845
    How do you attach the rail to the launch pad? Photos please.
    NAR # 37682

    All the weird kids are doing it!

    If at first you don't succeed... You're about average.

  10. #100
    Join Date
    27th December 2015
    Location
    Hailey, ID
    Posts
    86
    Not my idea but a good one from the forum. Pice of brass tubing, dowel and 3/16" rod JB welded to the end of the rail. Works very well. Also some square tubing and #2 screws can make a slick adapter.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by retortec; 27th December 2016 at 09:36 PM.
    NAR Member
    L1 Modified Estes Partizon Aerotech H128-10
    Spring 2017 L2 Modified LOC Nuke Pro Max dual deploy CTI J95
    Mach buster design #9. Aerotech G80-14 DMS Mach 1.71 at 5261 feet.

  11. #101
    Join Date
    26th June 2016
    Location
    Mobile, AL, USA
    Posts
    845
    Thanks.

    NAR # 37682

    All the weird kids are doing it!

    If at first you don't succeed... You're about average.

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