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Author Topic: Binder Iris Build  (Read 5909 times)
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RocketballSA
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Fantom on a H170 Sparky


« on: August 15, 2010, 11:18:54 AM »

Will be posting a step by step build for my new Binder Iris as shown here;

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star destroyer
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Welcome to the DARK SIDE


« Reply #1 on: October 11, 2011, 02:12:44 PM »

Any progress on this build ? RocketballSA
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RocketballSA
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Fantom on a H170 Sparky


« Reply #2 on: October 11, 2011, 08:19:32 PM »

Yep! Have opened the package!  dance

Am getting there.  alrolleyes

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« Reply #3 on: October 11, 2011, 11:32:44 PM »

lol, a month to open the plastic bag....

should be ready by 2013 hey mate  fancheesy

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Polecat Thumper on an M1297 yeah!!!!!


« Reply #4 on: October 12, 2011, 06:09:10 AM »

Emir take a closer look at the original post year!

Ohh Maurice that is terrible you have had that rocket for quite some time now. You may even surpass gdude he has had kits sitting for ages as well. 14 months to open a rocket kit lol it will be 2021 by the time ur done.
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RocketballSA
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Fantom on a H170 Sparky


« Reply #5 on: September 15, 2012, 01:05:02 PM »

Well guess what.  blhuh Have finally begun this build. Taking a pause from repairs to other rockets thought would whip this one up.  blwink

As with any build firstly have to read all the instructions as shown here;  icon_salut



First steps show the motor mount tube (38mm). Placing the rings in the correct place is very important.  dizsmiley





Instructions require use of fins to accurately align these rings. Having noted the edges were quite square on these fins could not help myself to start sanding these to ensure a round edge.  dizgrin Instructions suggested using a belt sander but this is not available so the old fashion way of manually doing this was used;  wub




Next was to align fins with rings. This also required manually drilling a hole in the upper ring to fit the screw eye;






The completed unit;



Next involved removing the pre cut slots. Binder kits usually come with these.;




Next involved testing the fins fitted through these slots with no problems. It was noted and found that one pre-cut slot was a bit different to the other 3.  dizundecided This required some minor modifications to adapt.;



Next was to test fit the motor mount into the tube. This was found to be difficult requiring several rings to be sanded. Once installed and test fitted with the fins it was found to be an extremely difficult exercise removing the motor mount prior to gluing.;  dizangry





Next involved gluing the motor mount in; Using 24 hour epoxy this was found to be easy. Next was to glue the fins in. Prior to gluing motor mount in had sanded the areas on the motor tube where the fins are to be glued to. Using JB Weld had placed generous amounts on this leading edge of fins then used epoxy on the sides of fins to help with gluing fins to body tube. These photos show this technique;





Will post more later.
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RocketballSA
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Fantom on a H170 Sparky


« Reply #6 on: September 17, 2012, 01:02:06 PM »

While waiting for glue to dry thought would do some work on upper section of rocket. This involved gluing in the other screw eye in the coupler as shown in these photos;  dizsmiley




This coupler was then glued into the upper tube.



It was noted on instructions on how to place launch lugs. Binder kits come with rail buttons which this one had but am undecided which way to go.  dizundecided After considering the options have decide to place both rail buttons and launch lugs on this rocket. Can’t see any problem with doing this;




With the fin section now dry presented an opportunity to see how the kit will look assembled;  smitongue




Next was to do the fillets on the fins. With this type of rocket clearly it will be landing under shute all the time on the fins. Therefore they will need good strength in all areas.  Using glue as shown in photo have been doing one section at a time over last 4 days with fillets. 24 hours is needed for each section.  dizrolleyes




Will post more later.
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« Reply #7 on: September 17, 2012, 08:33:09 PM »

Great build. Nice looking kit, might have to invest in one of those down the track.

One thing quickly, I used the Araldite high strength epoxy to do the fillets on my Tomahawk. While I loved the self leveling & cleaness of them, I found that it dries very brittle and it cracked one of the fillets upon landing from its first flight.

Cheers

Greg
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RocketballSA
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Fantom on a H170 Sparky


« Reply #8 on: September 18, 2012, 11:22:33 AM »

Cheers for that advice Greg.  icon_thumright Is the first time have used this type of glue for fillets so will see how it goes. Have put a very generous amount as shown in these photos;



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RocketballSA
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Fantom on a H170 Sparky


« Reply #9 on: September 22, 2012, 01:48:16 PM »

After allowing quite a few days for the 24 hour epoxy to harden have spent considerable time sanding the fins back with 120 grade paper as shown here;



Have been undecided  dizundecided whether to use “dope” to increase the fin strength as shown in this photo below or some other method.



Upon consulting an expert with vast experience at this had decided to use 5 minute epoxy to strengthen the fins.  icon_thumright This technique is shown in the photos below which prompted a quick trip to Bunning’s for the necessary tools.  dizsmiley




The finished item which will require sanding;



Will post more later.
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Fantom on a H170 Sparky


« Reply #10 on: September 23, 2012, 02:51:56 PM »

The coating is now complete. Will now wait 24 hours to sand with finer grade paper.

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« Reply #11 on: September 23, 2012, 09:38:24 PM »

be ashame to paint over those fins now.
maybe you could build a woodgrain rocket...
looking good btw
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RocketballSA
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Fantom on a H170 Sparky


« Reply #12 on: September 30, 2012, 11:19:58 AM »

Next item on the agenda is the launch lugs. As per instructions have marked where they will be placed.

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RocketballSA
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Fantom on a H170 Sparky


« Reply #13 on: October 13, 2012, 06:26:47 PM »

Carrying on from the last post. Have now epoxied the launch lugs on and included fillets as shown in this photo;  icon_thumleft



Next was to measure up where the launch buttons will be attached. This was carefully done to ensure buttons would be straight and places marked as recommended by instructions;




With the above done the holes were drilled for the buttons and epoxied on;




Next was to test fit the upper part to lower part of the Iris. It was noted the fit was extremely tight which clearly warrented plenty of sanding for good fitment.  dizundecided Was not keen on this option so in less than 20 seconds had pealed the coupler paper back resulting in an excellent fitment which was just right.  dizcheesy



Had concerns in regards to the tube not being strong enough near the coupler to withstand zippers on the tube.  dizundecided To address this had mixed up a small amount of JB Weld and placed this around top end of tube as shown in this photo;



Next was the shock cord. From my experience of flying nearly 40 J flights with only 2 failures of broken shock cords was not happy with just using the Binder Kevlar shock cord.  wub This prompted a trip to spotlight for something will be happy with. A much thicker cord was found  which believe can take the stresses of an early ejection or late ejection of a J motor.  happy3 The Binder shock cord was cut with this new shock cord added;




The chute was then attached;



The Iris was then laid out to show the full length of this new shock cord;



Next part will be painting;  sleepy




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