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  1. #1
    Join Date
    1st November 2017
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    Auburn ,MA Home of modern rocketry
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    8

    Help with new launch pad

    After years of use my Estes launch pad has passed away
    and in the mind process to build a pad with a tripod folding legs
    I'm looking for suggestions for a camera tripod and items I can find a home depot or lowes ,eBay

    Any suggestion with pic's


  2. #2
    Join Date
    30th January 2016
    Location
    US > OK > NE
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    A lot of us use converted Rockwell Jawstands.


  3. #3
    Join Date
    1st November 2017
    Location
    Auburn ,MA Home of modern rocketry
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    8
    Quote Originally Posted by dhbarr View Post
    A lot of us use converted Rockwell Jawstands.
    A great start, I'm sure it will need modifications, is there any links to see samples ?

  4. #4
    Join Date
    20th June 2015
    Location
    Vermont
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    396
    Quote Originally Posted by Kuya View Post
    A great start, I'm sure it will need modifications, is there any links to see samples ?
    http://www.rocketryforum.com/showthr...light=rockwell
    Jim V

    Champlain Region Model Rocket Club
    CRMRC
    Facebook
    NAR #101467
    L1 - 5/21/16 Estes Mega Der Red Max H128W to 1,021'


  5. #5
    Join Date
    1st November 2017
    Location
    Auburn ,MA Home of modern rocketry
    Posts
    8
    Thanks, seems exactly what I was looking for

  6. #6
    Join Date
    6th March 2010
    Location
    Amesbury, MA
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    1,997
    Quote Originally Posted by Kuya View Post
    Thanks, seems exactly what I was looking for
    Hi Kuya,
    Welcome to the forum. To address your request, take a look at this thread. I've got one of these I can part with and you're not too far away so it should be easy to arrange a meet up. This or the jawstand will take you from low power up through mid-power if you so desire. We've even put some high power rockets up on the jawstand.

    As you are in Massachusetts, have you checked out CMASS? From you location, RIMRA is another possibility for flying with a club.

    If your interested in the bike stand or the club, send me a private message.
    KENN BLADE
    NAR #80160
    CMASS President
    MMMSC Ambassador-at-Large
    NAR S&T Member

  7. #7
    Join Date
    18th October 2016
    Posts
    492
    The Jawstand makes an awesome launch tripod. I’ve used mine up to I motors and it works great. For bigger rockets, make sure you buy some of those nail-looking stakes for extra foot support.
    TRA L2. I-class record: "Vanish 29" with an I224, 14,596ft, Mach 1.92. Video here.

  8. #8
    Join Date
    1st November 2017
    Location
    Auburn ,MA Home of modern rocketry
    Posts
    8
    Quote Originally Posted by KennB View Post
    Hi Kuya,
    Welcome to the forum. To address your request, take a look at this thread. I've got one of these I can part with and you're not too far away so it should be easy to arrange a meet up. This or the jawstand will take you from low power up through mid-power if you so desire. We've even put some high power rockets up on the jawstand.

    As you are in Massachusetts, have you checked out CMASS? From you location, RIMRA is another possibility for flying with a club.


    If your interested in the bike stand or the club, send me a private message.
    I just return from Home Depot and already started to modify , wish I read it earlier, yes very interested in the club and I live in Auburn MA , will shoot a message to later .

  9. #9
    Join Date
    6th June 2009
    Location
    Middle of the Mitten, MI
    Posts
    2,316
    You've already gone and bought the Jawstand and I am sure it will work out fine, but I have gotten 10+ years use out of a camera tripod I got for > $10.00 on craigslist (vs. roughly $50 for the Jawstand) and then epoxied the mounting mechanism from my Estes pad onto the mounting shoe of the tripod. The mount holds launch rods from 1/8 to 3/8" diameter which is fine for launching anything up to mid-power models. Over the years I've added fancy touches such as a 90-degree blast deflector elbow exhaust pipe from an old woodstove.

    As others have noted, any time you're launching more than A-C LPR models, it's a good idea to anchor the launcher to the ground with stakes and bungee cords. Those bigger motors can kick a tripod launcher (or the Jawstand) right over if they're not tied down.

  10. #10
    Join Date
    8th October 2016
    Location
    Midwest
    Posts
    129
    Hiya Kuya and welcome.

    I'm not sure how far you have progressed on modding your JawStand but have a look see at my rendition of a JawStand pad --->>> Let's see your Jawstand - Rail adapters - post #50 & #51

  11. #11
    Join Date
    1st November 2017
    Location
    Auburn ,MA Home of modern rocketry
    Posts
    8
    Quote Originally Posted by Tobor View Post
    Hiya Kuya and welcome.

    I'm not sure how far you have progressed on modding your JawStand but have a look see at my rendition of a JawStand pad --->>> Let's see your Jawstand - Rail adapters - post #50 & #51
    Just stated to dryfit some angle to it for a blast shield, but I m going to bring the clamps to work and have some inter design and 3D print some ideas
    But your pic's give me some more ideas to play with .

  12. #12
    Join Date
    10th September 2014
    Location
    St. Paul, MN
    Posts
    240
    I got a camera tripod that was being thrown out at work because "it's broken." As it happened, it was missing a bolt that I bought at the hardware store. I also bought a t-nut, which I put in a piece of plywood and attached to the tripod mounting screw. I bolted an old drill chuck to the plywood, so I can add any size launch rod. Some scrap sheet metal makes a good blast deflector.

  13. #13
    Join Date
    27th March 2013
    Location
    Has Changed
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    9,558
    Years ago, I bought a tripod mounted bike stand... Heavy as sin... I suspect it would do a great job for a launch pad with no permanent modifications necessary.

    http://www.performancebike.com/bikes...551_1030266_-1

    Dreaming of making the rockets I dreamed of as a kid (and then some).


    NAR L1 Cert flight: Sheridan, Oregon, USA. Sept. 19, 2015. Flew Deep Space OFFl on an I357T-14A Blue Thunder

  14. #14
    Join Date
    10th July 2007
    Location
    Melbourne, Australia
    Posts
    1,267
    Aldi do a bike stand that is popular. Thread here: http://www.rocketryforum.com/showthr...nch-Pad-for-30!
    TRA 13430, Level 3

    "Everybody's simulation model is guilty until proven innocent" (Thomas H. Lawrence 1994)

  15. #15
    Join Date
    1st November 2017
    Location
    Auburn ,MA Home of modern rocketry
    Posts
    8
    Has anybody seen a modified bike stand without the clamps and adapted mount directly to the pole?
    Machine a plug to the tubing and build a blast shield around it

  16. #16
    Join Date
    27th March 2013
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    Quote Originally Posted by Kuya View Post
    Has anybody seen a modified bike stand without the clamps and adapted mount directly to the pole?
    Machine a plug to the tubing and build a blast shield around it

    I haven't.


    However, I'd recommend against it. By having the clamps, you can rotate the launch rail easily. Personally my idea would be to have the rail affixed to an adapter that is clamped in place. That way I can have the rocket located as low as I want (reducing the chance of a blow over in a windy situation).

    Another nice thing about the bike stand is that it makes a great paint stand
    Dreaming of making the rockets I dreamed of as a kid (and then some).


    NAR L1 Cert flight: Sheridan, Oregon, USA. Sept. 19, 2015. Flew Deep Space OFFl on an I357T-14A Blue Thunder

  17. #17
    Join Date
    1st November 2017
    Location
    Auburn ,MA Home of modern rocketry
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    8
    Quote Originally Posted by K'Tesh View Post
    I haven't.


    However, I'd recommend against it. By having the clamps, you can rotate the launch rail easily. Personally my idea would be to have the rail affixed to an adapter that is clamped in place. That way I can have the rocket located as low as I want (reducing the chance of a blow over in a windy situation).

    Another nice thing about the bike stand is that it makes a great paint stand
    I see your point on rotation but adapting a swivel type mount, I'm a minimalist and less is better so off to the drawing board and mount and blast plate .

  18. #18
    Join Date
    13th August 2017
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    SEPA
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    I very recently bought a bike stand on ebay for $36 with free shipping. no modification needed; clamp a rail in the jaws get a $4 dryer vent duct from big box hardware store of choice and its ready to go in under 30 minutes
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    Last edited by solid_fuel; 4th November 2017 at 02:48 AM. Reason: sideways picture

  19. #19
    Join Date
    6th June 2009
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    Middle of the Mitten, MI
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    2,316
    A lot of the fun of rocketry is being your own "steely-eyed missile man" and designing your own solutions to these situations. Sometimes unexpected household items (like G. Harry's beloved wooden spring loaded clothespins) are lifesavers.

    Pretty much all of the bike-stand/ tripod/ Jawstand-style launchers will work fine as long as you keep some design essentials in mind -- mainly stability against tipping and location of center of gravity. If it's got a stable foundation (3-4 legs, wide footprint) and is secured with stakes or weights so it won't tip, and has adjustable launch angles to allow you to compensate for wind, you'll be fine.

  20. #20
    Join Date
    19th February 2017
    Location
    The world, probably
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    465
    Quote Originally Posted by solid_fuel View Post
    I very recently bought a bike stand on ebay for $36 with free shipping. no modification needed; clamp a rail in the jaws get a $4 dryer vent duct from big box hardware store of choice and its ready to go in under 30 minutes
    I like the "flame trench"! My LPR pad uses a 1/4 section of dryer duct but I was considering a full duct. The deal breaker for me was that the elbow I had was too small for my strap-on booster rocket.

    Sent from my LGL44VL using Rocketry Forum mobile app
    NAR #104043

    crmrc.org

  21. #21
    Join Date
    13th August 2017
    Location
    SEPA
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    154
    I can’t take credit for the dryer vent idea but when I saw a picture of it I knew that’s what I wanted.

  22. #22
    Join Date
    6th June 2009
    Location
    Middle of the Mitten, MI
    Posts
    2,316
    All my gear is locked in my garage but my blast deflector stove pipe looks like this.


  23. #23
    Join Date
    19th January 2009
    Location
    Stafford VA
    Posts
    7,043
    Check the heating section of the big box stores. They have lots of different vent and duct sizes. You should be able to get an elbow like that up to 8", maybe 10" instead of the standard 3" or 4" for dryer vents.

    I'm not sure how well something like that will stand up to HPR motor flame. We have 0.080 thick steel deflectors with hi-temp paint on our HPR pads that have sat outside for 9 years. One actually has a hole rusted through it now. I think that is a pretty good run, but the ducting and vents are much thinner and may not last a single launch with a I or J motor and a heavy rocket the is slow off the pad. YMMV
    Handeman

    TRA #09903 L3 3/29/2015

    "If you don't use your head, you have to use your feet!" my Dad

    Tripoli Central Virginia #25 - BattlePark.org

  24. #24
    Join Date
    13th August 2017
    Location
    SEPA
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    154
    Mine is on a 20mm rail so I’d doubt I will launch anything bigger than an F motor on it. If even that.

  25. #25
    Join Date
    13th August 2017
    Location
    SEPA
    Posts
    154
    I was also considering putting a metal junction box cover inside to take the direct hit from the flame.


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