jus_rockets
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Man that is a lot of parts :eyepop: I am looking forward towards this build. Good luck!
Nuclear Sledgehammer Build
- Thread starter cwbullet
- Start date
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blackbrandt
That Darn College Student
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What is the long thing leaning on the tube with the nose cone on it?
Looking forward to the build, and maybe seeing this at Freedom launch.
Matt
Looking forward to the build, and maybe seeing this at Freedom launch.
Matt
blackjack2564
Crazy Jim's Gone Banana's
Welcome back Chuck!
Bet it's fun to build a real rocket again, looking forward to this.
CJ
Bet it's fun to build a real rocket again, looking forward to this.
CJ
Will be watching this one, the Nuclear Sledgehammer has always been on my mind. Looking at this build will give me some more insight to this big rocket. Subscribed
Chuck,
If I were to redo my build, I would rethink the av-bay placement. the av-bay itself is a great piece of engineering, but I eventually rebuilt it with a more traditional coupler placement vs. inside the sustainer. Otherwise, it's a fantastic piece of kit.
If I were to redo my build, I would rethink the av-bay placement. the av-bay itself is a great piece of engineering, but I eventually rebuilt it with a more traditional coupler placement vs. inside the sustainer. Otherwise, it's a fantastic piece of kit.
sodmeister
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It must be nice to be home for awhile and build a nice big COOL rocket !
Happy building and enjoy ,I know I shall !!
Cheers
Paul T
Happy building and enjoy ,I know I shall !!
Cheers
Paul T
Ok,
I did 2 steps today. It will be a slow build. I will post pictures soon.
I did 2 steps today. It will be a slow build. I will post pictures soon.
Welcome home Chuck! I had to subscribe to this thread, too much good stuff in that pile, have to see how it all goes together.
Green Jello
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Fixed.
That is too funny. I need to shave.
Gary Byrum
Overstable By Design
Fixed.
LMFAO!! Nice work Dave.
I might have to get one for my son. I try to keep him off the net.
He is a mini-me.
He is a mini-me.
Photo:
Motor tube, retainer, centering rings, and thrust plate.
Motor tube, retainer, centering rings, and thrust plate.
Before gluing anything, I test fit a motor casing in the motor tube.
The most embarrassing thing that has ever happened to me was installing my motor tube on my level 3 and finding out 3/4 the way into the build that the motor tube was deformed at one end. My motor did not fit and I had to spend a week sanding the inside of the tube.
Excuse the dark photo. My wife is learning to use the camera.
The most embarrassing thing that has ever happened to me was installing my motor tube on my level 3 and finding out 3/4 the way into the build that the motor tube was deformed at one end. My motor did not fit and I had to spend a week sanding the inside of the tube.
Excuse the dark photo. My wife is learning to use the camera.
Ok, The first step was to install the motor mount. The slimline is even slimmer than normal to fit inside the thrust plate.
The Slimline requires JB Weld for installation.
The JB Weld is applied at the bottom of the motor tube.
The retainer is installed on the motor tube.
I set the motor tube in the sun for 3 hours to "cook". It speeds up the hardening.
The Slimline requires JB Weld for installation.
The JB Weld is applied at the bottom of the motor tube.
The retainer is installed on the motor tube.
I set the motor tube in the sun for 3 hours to "cook". It speeds up the hardening.
I see a V2 there, and this build looks like its going to be impressive.
This is by far the most advanced build I have ever done.
Next step:
Mark the spot for the bottom centering ring 7 inches from the retainer. I marked the spot with a sharpie and then added a line of 2 layers of blue masking tape below the bottom mark to hold the ring in place.
Apply the glue between the marked marks. Be very careful to apply only the amount of glue you need and not more. Being sloppy will the glue (runs) often effects future steps.
Slide the centering ring into place. I did not need to clean excess glue but a paper towel can be helpful if there is any. I taped the ring in place with blue tape.
Confirm ring placement with a square. It should be 90 degrees with the tube on all 4 sides.
Next step:
Mark the spot for the bottom centering ring 7 inches from the retainer. I marked the spot with a sharpie and then added a line of 2 layers of blue masking tape below the bottom mark to hold the ring in place.
Apply the glue between the marked marks. Be very careful to apply only the amount of glue you need and not more. Being sloppy will the glue (runs) often effects future steps.
Slide the centering ring into place. I did not need to clean excess glue but a paper towel can be helpful if there is any. I taped the ring in place with blue tape.
Confirm ring placement with a square. It should be 90 degrees with the tube on all 4 sides.
So it begins... wow! What a kit! That motor retainer looks well used already... how so?
It is ground down a little to fit inside the bottom ring / tail cone. It is done on purpose. You will not see the outside.
Pantherjon
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With the heat we have had this last week it should have 'cooked' in like 3 MINUTES!:rofl: Really looking forward to seeing this, and more importantly, YOU, at Freedom Launch!
Matt,
That is dowel which will be used in the build but is not a part of the rocket.
Gotcha... I''l wait till that part of the build gets here then, thanks!
It will be there in a week or so. I am going to install the other ring and start on the fins today.
The next step was to add the edges to the fins. I am working on this step, but it will take a couple of days. I also added a filet to my bulkheads.
The next step was to install the forward bulkhead. There are two. They are to be installed 6.5 inch from the forward end of the motor tube. Marks were made and the bulkheads were confirmed to be at 90 degrees with the tube. The area was roughed up with 80 grit sandpaper.
Marking the location for the bulkhead.
Roughing up the tube between the marks.
Glue placement on the tube. I also glued the bulkheads together (not shown).
Confirming 90 degrees.
Tightening the nuts on the u-bolts.
Marking the location for the bulkhead.
Roughing up the tube between the marks.
Glue placement on the tube. I also glued the bulkheads together (not shown).
Confirming 90 degrees.
Tightening the nuts on the u-bolts.
Next step is the assembly of the fins. Each fin has a nomex honeycomb core and MDF edges. They are truly a work of art.
This rocket has 5 fins - 2 wings and 3 lower fins. The fin is made of nomex honeycomb. The edges have the inside "honeycomb" removed. The edge is made of MDF which is inserted into the groove created by the removal of the honeycomb. It will be glued in place with Gorilla brand polyurethane glove.
The fin with parts dry fitted together.
The parts and honeycomb in one frame.
Inserting on of the edges into the honeycomb.
Straightening the part.
Putting glue in the "slot".
All the segments assembled.
Fin assembled and placed on Wax Paper - the wax paper in on my pressure jig - two pieced of wood and a piece of railroad track (soon to be revealed).
This rocket has 5 fins - 2 wings and 3 lower fins.
The fin with parts dry fitted together.
The parts and honeycomb in one frame.
Inserting on of the edges into the honeycomb.
Straightening the part.
Putting glue in the "slot".
All the segments assembled.
Fin assembled and placed on Wax Paper - the wax paper in on my pressure jig - two pieced of wood and a piece of railroad track (soon to be revealed).
This rocket has 5 fins - 2 wings and 3 lower fins.
The next step is to place the roof on the jig - layer of wax paper and another piece of plywood. Pressure is applied by the weight of a piece of railroad track.
Wax paper placed over the fin.
Plywood placed over fin to distribute pressure.
Railroad track to create pressure.
These steps were done on each fin.
Wax paper placed over the fin.
Plywood placed over fin to distribute pressure.
Railroad track to create pressure.
These steps were done on each fin.
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