Cluster is Back! A progressive build thread
- Thread starter JDcluster
- Start date
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JDcluster
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5x7
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- Joined
- Jan 19, 2009
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That's for sure on the fillers. Looking good so far!
JDcluster
Well-Known Member
Just a small update here:
I started to attach external conduits for the air-starts.
3 sets of 2 or one for each outboard motor.
JD
I started to attach external conduits for the air-starts.
3 sets of 2 or one for each outboard motor.
JD
JDcluster
Well-Known Member
Update:
Fiber glassing.
I have 2 builds that require this.
I will be using 6oz plain weave with a finish / sanding layer of 3oz e-glass.
I'll be doing 1 fin at a time due to the fact I still need to add more conduits.
JD
Fiber glassing.
I have 2 builds that require this.
I will be using 6oz plain weave with a finish / sanding layer of 3oz e-glass.
I'll be doing 1 fin at a time due to the fact I still need to add more conduits.
JD
JDcluster
Well-Known Member
More FG cloth applied.
This will take some time to complete.
24 pieces of FG cloth.
2 layers per fin both sides of each fin.
Right now, I just completed 3 sides with 9 more to go.
Then, it's on to the rest of the booster.
It will see the same treatment of 2 layers; 4.5 oz and 3 oz E-glass.
JD
This will take some time to complete.
24 pieces of FG cloth.
2 layers per fin both sides of each fin.
Right now, I just completed 3 sides with 9 more to go.
Then, it's on to the rest of the booster.
It will see the same treatment of 2 layers; 4.5 oz and 3 oz E-glass.
JD
Last edited:
JDcluster
Well-Known Member
If you haven't noticed:
I will not be doing the coveted Fin-to-Fin layup due to; the angle of the fins being so great.
To make up for it; I layer the tube with a strip in between the fins.
I've been doing the fins 180 degrees apart so, they are laying flat.
Using 6 pumps of West Systems out of the group B sized cans seems to be the right amount for 2-3 fins per application.
JD
I will not be doing the coveted Fin-to-Fin layup due to; the angle of the fins being so great.
To make up for it; I layer the tube with a strip in between the fins.
I've been doing the fins 180 degrees apart so, they are laying flat.
Using 6 pumps of West Systems out of the group B sized cans seems to be the right amount for 2-3 fins per application.
JD
JDcluster
Well-Known Member
Just a small update:
I'm in the middle of sanding the fin unit and other projects mentioned elsewhere on TRF.
I've put this project off to the side till I figure out how long the fin unit will be before I cut it to length.
To aid in transporting.
Ordered more fiberglass from a new company ( to me anyhow)
Ill Street Composites out of SC:
https://www.carbonfiberglass.com/
Their prices weren't bad order arrived promptly.
JD
I'm in the middle of sanding the fin unit and other projects mentioned elsewhere on TRF.
I've put this project off to the side till I figure out how long the fin unit will be before I cut it to length.
To aid in transporting.
Ordered more fiberglass from a new company ( to me anyhow)
Ill Street Composites out of SC:
https://www.carbonfiberglass.com/
Their prices weren't bad order arrived promptly.
JD
Last edited:
JDcluster
Well-Known Member
Update:
I've been thinking on how how the booster will incorporate the air-start electronics.
My main concern is wiring and placement of the electronics.
Moving forward..... I just glassed the remaining 36" of the upper booster tube.
Lucky for me, the 6 oz E-glass was exactly 38" leaving me with 2" or less of excess.
Apparently that 6 oz I was using was mislabeled as 4.0 oz
I figured it out when I measured then width and compared it to US Composites web page ordering numbers.
The 6 oz I ordered comes in 38" wide or 60" wide, where the 4 oz comes in either 30" or 50" widths.
Being it was 38 tells the truth.
Anyhow; here are some more pics of me fiber glassing the 6" PML tube:
JD
I've been thinking on how how the booster will incorporate the air-start electronics.
My main concern is wiring and placement of the electronics.
Moving forward..... I just glassed the remaining 36" of the upper booster tube.
Lucky for me, the 6 oz E-glass was exactly 38" leaving me with 2" or less of excess.
Apparently that 6 oz I was using was mislabeled as 4.0 oz
I figured it out when I measured then width and compared it to US Composites web page ordering numbers.
The 6 oz I ordered comes in 38" wide or 60" wide, where the 4 oz comes in either 30" or 50" widths.
Being it was 38 tells the truth.
Anyhow; here are some more pics of me fiber glassing the 6" PML tube:
JD
JDcluster
Well-Known Member
Wow, it's been a month since my last update here!
I finished most of the sanding on the booster.
I was working on finishing up another project and had allot of leftover Aeropoxy.
(finished off the resin can) so I decided to do a fill coat on the sanded booster.
In another related item:
I just cast the main motor for this rocket.
A 54 mm x 2550 K /L motor " Research" motor.
The larger grain stack is of a 76 mm to be later cut into grains.
JD
I finished most of the sanding on the booster.
I was working on finishing up another project and had allot of leftover Aeropoxy.
(finished off the resin can) so I decided to do a fill coat on the sanded booster.
In another related item:
I just cast the main motor for this rocket.
A 54 mm x 2550 K /L motor " Research" motor.
The larger grain stack is of a 76 mm to be later cut into grains.
JD
