Thread Rating:
  • 1 Vote(s) - 5 Average
  • 1
  • 2
  • 3
  • 4
  • 5
4" Frenzy XL
#11
When the ceilings in your house aren't high enough to dry fit your frenzy...

[Image: attachment.php?aid=660]

NAR# 98194
Level 1: CTI I-216, 3,043'
Level 2: CTI K-740, 5,999'

Personal altitude record: 12,400' CTI L395
2014 total impulse: 9,018.2 Ns (76% M)
2015 total impulse: 7,171.7 Ns (40% M)
2016 total impulse: 18,664.2 Ns (91% N)
2017 total impulse: 8,281.1 Ns (80% M)
Reply
#12
Got three of the centering rings tacked on.

*Note: the kit only comes with three centering rings, I'm getting a fourth one from AMW*

[Image: attachment.php?aid=661]


Attached Files Thumbnail(s)
   

NAR# 98194
Level 1: CTI I-216, 3,043'
Level 2: CTI K-740, 5,999'

Personal altitude record: 12,400' CTI L395
2014 total impulse: 9,018.2 Ns (76% M)
2015 total impulse: 7,171.7 Ns (40% M)
2016 total impulse: 18,664.2 Ns (91% N)
2017 total impulse: 8,281.1 Ns (80% M)
Reply
#13
Well I haven't updated this in about a week, so here goes.

In the last week almost no progress was made, that would be due to the lack of Proline 4500 epoxy within my household. However yesterday, I picked up a pretty large order from Robert and Gloria of AMW. The order consisted of another centering ring for my motor mount, some bulkheads for the nose cone shoulder, an aeropack 75mm retainer, an aeropack 54-75mm adapter, a nozzle carrier for my 54mm AMW casing, a replacement 38mm fly away rail guide (mine was deformed sometime before purchase), a Pro75 wrench, an L910 C-star, and Proline 4500.

So while actual building of the rocket hasn't happened since last weekend, I did manage to assemble both motors I plan to fly it on next weekend. Those motors being a K670 Red Rhino, and an L910 C-star.

[Image: attachment.php?aid=691]

The building will continue tomorrow afternoon.


Attached Files Thumbnail(s)
   

NAR# 98194
Level 1: CTI I-216, 3,043'
Level 2: CTI K-740, 5,999'

Personal altitude record: 12,400' CTI L395
2014 total impulse: 9,018.2 Ns (76% M)
2015 total impulse: 7,171.7 Ns (40% M)
2016 total impulse: 18,664.2 Ns (91% N)
2017 total impulse: 8,281.1 Ns (80% M)
Reply
#14
I have a nice brand new CTI 75mm 4grain motor assy that will move that thing off the pads quite nicely... It's for sale if you're interested...

Adrian

Adrian Butler
NAR 73787 L3
Tripoli 13524 L3 
QCRS, Princeton, IL
Chicago Rocket Mafia "The Mechanic"
Reply
#15
(11-08-2015, 12:53 PM)jd2cylman Wrote: I have a nice brand new CTI 75mm 4grain motor assy that will move that thing off the pads quite nicely... It's for sale if you're interested...

Adrian

Definitely interested... Just need the casing as I already have closures and rings, how much?

NAR# 98194
Level 1: CTI I-216, 3,043'
Level 2: CTI K-740, 5,999'

Personal altitude record: 12,400' CTI L395
2014 total impulse: 9,018.2 Ns (76% M)
2015 total impulse: 7,171.7 Ns (40% M)
2016 total impulse: 18,664.2 Ns (91% N)
2017 total impulse: 8,281.1 Ns (80% M)
Reply
#16
Message sent.

Adrian

Adrian Butler
NAR 73787 L3
Tripoli 13524 L3 
QCRS, Princeton, IL
Chicago Rocket Mafia "The Mechanic"
Reply
#17
I said that I would continue building this tomorrow, but I lied.

First thing was getting the retainer onto the motor mount using JB weld. Once I was done with that, I figured I had enough time, might as well go one step further, so I busted out the new cans of Proline 4500 and mixed up 14.5 grams of the stuff. I used some of that to get the centering rings bonded to the motor mount. I decided I had enough left over so I got to work on getting the motor mount into the body tube only bonding the top centering ring to the body tube. I plan on injecting internal fillets using west systems and doing the same for the other three centering rings. Well I still had a ton mixed epoxy left so I decided on "double dipping" the first set of fins to get them permanently bonded to the motor mount.

[Image: attachment.php?aid=694]

One thing I noticed when mixing the proline 4500 was the mix ratio(100:16). It's different than when I bought some last year (5.5:1). After doing the math I noticed that the mix ratio of the new stuff is not the same at all (6.25:1). Not sure what the difference is now, but I'll just have to go with it for best results right?

Also, sorry for the run on paragraph, it's late and I want to go to sleep...


Attached Files Thumbnail(s)
   

NAR# 98194
Level 1: CTI I-216, 3,043'
Level 2: CTI K-740, 5,999'

Personal altitude record: 12,400' CTI L395
2014 total impulse: 9,018.2 Ns (76% M)
2015 total impulse: 7,171.7 Ns (40% M)
2016 total impulse: 18,664.2 Ns (91% N)
2017 total impulse: 8,281.1 Ns (80% M)
Reply
#18
Mixed up another 14.5 grams of Proline today once I got home from work. Got to work on the next set of fins, double dipping them on.

[Image: attachment.php?aid=695]

Had a quite a bit of epoxy left over so I got the bulkheads for the nose cone shoulder put together into av-bay lids. The shoulder will end up being a tracker bay at some point.

[Image: attachment.php?aid=696]

At this point I still had a little bit left unused so i got to work permanently mounting the pem nuts into the av-bay and nose cone shoulder.

[Image: attachment.php?aid=697]


Attached Files Thumbnail(s)
           

NAR# 98194
Level 1: CTI I-216, 3,043'
Level 2: CTI K-740, 5,999'

Personal altitude record: 12,400' CTI L395
2014 total impulse: 9,018.2 Ns (76% M)
2015 total impulse: 7,171.7 Ns (40% M)
2016 total impulse: 18,664.2 Ns (91% N)
2017 total impulse: 8,281.1 Ns (80% M)
Reply
#19
Last night I got the last fin set bonded to the motor mount. Later today I will get all the internal fillets injected.

I had been thinking of the paint/color scheme that this will eventually get and I came up with a final design.

[Image: attachment.php?aid=700]



The carbon pattern will be actual carbon since I'm going to do T2T, and I wanted to display that on the rocket.


Attached Files Thumbnail(s)
   

NAR# 98194
Level 1: CTI I-216, 3,043'
Level 2: CTI K-740, 5,999'

Personal altitude record: 12,400' CTI L395
2014 total impulse: 9,018.2 Ns (76% M)
2015 total impulse: 7,171.7 Ns (40% M)
2016 total impulse: 18,664.2 Ns (91% N)
2017 total impulse: 8,281.1 Ns (80% M)
Reply
#20
Injected fillets last night. First time I've ever done it and easily the messiest part of the build so far. Wast really expecting the epoxy to drip out whichever fin set was pointing down at the time. Good thing the floor is concrete and I was able to put some Dixie cups down to minimize cleanup.

Just went into the basement to check on the drippage from last night and noticed this little bit:
[Image: attachment.php?aid=715]


I thought it was kind of cool that the epoxy dried in such a way.

Cleaning the spots that dripped was easy enough, just took a razor to the line of epoxy and separated it at the base of the joint. Later today I will do the external fillets using Proline 4500. I'm probably going to stop by Home Depot first to grab a larger diameter PVC pipe though.


Attached Files Thumbnail(s)
   

NAR# 98194
Level 1: CTI I-216, 3,043'
Level 2: CTI K-740, 5,999'

Personal altitude record: 12,400' CTI L395
2014 total impulse: 9,018.2 Ns (76% M)
2015 total impulse: 7,171.7 Ns (40% M)
2016 total impulse: 18,664.2 Ns (91% N)
2017 total impulse: 8,281.1 Ns (80% M)
Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)