What's Black and White and Red(stone)?

Discussion in 'Low Power Rocketry (LPR)' started by les, Nov 21, 2018.

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  1. Nov 21, 2018 #1

    les

    les

    les

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    Almost done with my other builds (see https://www.rocketryforum.com/threads/a-pair-of-atlantis-a-gartrell-and-maybe-a-titan.148518/). Time to get some more in the pipeline.

    What's up this time?
    An Estes Black Hole.
    An Estes Mercury Redstone with Accur8 skins
    And a Boyce Mercury Redstone (3.9" diameter). I do need to order some parts to work this one so it will run a little behind....

    Parts display.
    First up, the Estes MR. I have the Accur8 skins next to the Estes parts. I find it interesting the difference in the United States font.

    IMG_4115.jpg

    To compare, the 3D printed parts from Boyce. All of the parts came nicely wrapped. I unwrapped some of the pieces to show the details

    IMG_4118.jpg IMG_4119.jpg

    Last, the Black Hole. Again, this is a builder's kits - balsa fins broken out, tubes damaged, etc.

    IMG_4116.jpg IMG_4117.jpg
     
  2. Nov 23, 2018 #2

    les

    les

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    A little catch up. Got busy with Thanksgiving

    Started assembling the Estes MR capsule. They tell you to scrape the edges before gluing. I had problems getting the parts to fit so I kept scraping....and removed too much. Fortunately, I happened to have a second kit so I replaced the parts from that kit. I realized you just needed a bit of "brute force" to get the pieces together. And I called Estes and explained what happened - they are sending me a replacement capsule for free! Fantastic customer service!!

    Also, instead of using tube style plastic cement, I dry fitted the piece together and then brushed the inside with liquid plastic solvent. I avoided having any extra glue messing up the outside and not having to fight the set time while trying to get the multiple pieces fitting together.

    I want to pre-paint the capsule, so I used tape to mask the tower standoffs and mounting holes.

    IMG_4122.jpg

    I also glued up part of the tower

    IMG_4124.jpg

    For the Boyce MR. I also masked the tower mount holes. Here is the Estes capsule painted flat black and the Boyce capsule in primer

    IMG_4130.jpg

    For the Black Hole, there are 12 fins! Most had broken away from the die-crush, and 2 were broken. I glued the broken ones together, sanded the fins, and started papering. I started with the 6 big ones

    IMG_4123.jpg

    There are also 12 rings that I had to release and clean up the tabs. And if you want to play cards, you end up with 12 white chips!

    IMG_4132.jpg

    I am using the Estes fin cutting guide to help align the rings. It slows the build as I have to wait a certain drying time between each ring, but will keep all of the rings square. You will notice ring 4 is out of place - it is not glued on yet....there is a madness to my method

    IMG_4134.jpg IMG_4135.jpg
     
  3. Nov 23, 2018 #3

    Amsterdam

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    I’ve used the tube cutting guide that way too, those are a great purchase.

    Look forward to seeing the build progress.
     
  4. Nov 24, 2018 #4

    les

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    For the Black Hole, the other 6 fins are now papered...

    IMG_4129.jpg

    Cut the dowels. I used a rubber band to secure them together so I could sand them to equal length

    IMG_4137.jpg

    These glue to the fins. Then you cut a strip of masking tape, wrap the tape around the end of the dowel, and then glue a piece of launch lug on the tape.

    IMG_4140.jpg IMG_4141.jpg IMG_4142.jpg IMG_4143.jpg

    I then used a little Titebond no drip glue for a fillet between the dowel and fin

    IMG_4144.jpg
     

    Attached Files:

  5. Nov 24, 2018 #5

    les

    les

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    And the picture sort of snuck into the previous post. For the Black Hole you cut some square balsa. This was sanded to equal lengths, glued onto the tube. Then that loose ring I left floating is glued to the top of the balsa.

    IMG_4139.jpg

    For the Estes MR, built up the motor tube

    IMG_4138.jpg
     
  6. Nov 25, 2018 #6

    les

    les

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    There is a similar process for dowels, tape, launch lug for the main fins. However, I did the tape/lug before gluing the dowel to the fin as the fin angle would make it more difficult to apply than the previous fins. After I glued the dowels on I let the tape/lug hang over the edge and used some weight to keep things aligned while drying.

    IMG_4147.jpg

    Fortunately, I have several glue containers..........

    Then the Black Hole started looking a bit "finny"

    IMG_4152.jpg

    One issue, with all of the rings and dowels with tape/lug bulges, none of my fin alignment guides would work. Had to revert to the ols standby Mark 1 eyeball.

    For the Boyce MR, I initially thought it would be smooth enough. But when I primed it all of the 3D printing ridges really showed up. I've spent several hours sanding/filing away the ridges

    This is what the main capsule looks like now
    IMG_4148.jpg

    And for the Estes MR. I had painted the white band by hand and now starting to assemble the struts. I am finding that I need to bend the struts some to get them to align. I decided to glue all 3 to the base and 1st support and will glue the 3 pieces together later. You can see how the struts actually spread out instead of converging.

    IMG_4153.jpg
     
  7. Nov 26, 2018 #7

    les

    les

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    Went to visit the in laws today so not a lot of progress...
    Got a few more fins on the Black Hole (no new pix)

    Glued the struts together and the top of the tower on. I had interference with the nozzles and the frame, so I broke them off and re-glued them on at a bigger angle

    IMG_4158.jpg
     
  8. Nov 28, 2018 #8

    les

    les

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    And the Black Hole is all finned out...

    IMG_4161.jpg
     
  9. Nov 28, 2018 #9

    les

    les

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    So now I'm a lean, mean, filleting machine...

    IMG_4163.jpg

    Built part of the escape tower for the Boyce MR

    IMG_4162.jpg

    And added the Accur8 skins to the Estes MR

    IMG_4164.jpg
     
  10. Dec 1, 2018 #10

    les

    les

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    Need to clean up the struts on the escape tower. If you look close you'll see some of the "defects" that need to be repaired

    IMG_4181.jpg IMG_4180.jpg

    For the Estes MR, I purchased the fins offered by Accur8. One fin had a major void on the backside. Here is my attempt to repair that.

    IMG_4182.jpg IMG_4183.jpg

    The fin halves need to be epoxied together. I first sanded the "rears" and scored the parts to give the epoxy a better bite. And then glued them and used tape and clamps to hold them while the epoxy cured



    IMG_4184.jpg IMG_4185.jpg
     
  11. Dec 2, 2018 #11

    les

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    Attached the launch lug to the Black Hole. I cut the front angle to match the fin

    IMG_4189.jpg IMG_4190.jpg IMG_4191.jpg

    And after the glue dried - primer

    IMG_4192.jpg

    Sanded the Accur8 fins for the Estes MR

    IMG_4193.jpg IMG_4194.jpg
    And came up with a jig to hold the fins while I primed it

    IMG_4195.jpg
     
  12. Dec 3, 2018 #12

    les

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    Sanding all the nooks and crannies on the Black Hole has been a pain. I used a craft stick wrapped in sandpaper to fit in between the rings. I did a little touch up and then painted.

    IMG_4196.jpg IMG_4198.jpg

    Did more work on the Boyce tower. I was having issues getting the top part to fit correctly, and then had a duh moment. The center alignment pin was too long. Once I sanded that down it fit fine.
    IMG_4199.jpg IMG_4202.jpg IMG_4203.jpg

    And painted the Estes Tower. The "bar" between on the bottom is just a painted line. Dry fitted on the capsule

    IMG_4200.jpg IMG_4205.jpg
     
  13. Dec 4, 2018 #13

    les

    les

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    Just a few things today.

    Installed shock cord into Black Hole - no pix. Typical Estes tea bag (but replaced the old rubber cord with an elastic braid)

    Primed the Boyce tower. This has to be done in sections (as will the painting) as there is no good way to hold the bloody thing while trying to paint it (and you need to keep twisting and turning it to get all sides.

    IMG_4206.jpg

    And painted the red band on the Estes capsule

    IMG_4207.jpg
     
  14. Dec 8, 2018 #14

    les

    les

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    Could have sworn I posted this the other day, but....

    Started painting the Boyce tower. Needed to hold it to tilt and twist to get access to get coverage. I'll need it to sit for the 48 hours before I can paint the balance.

    IMG_4208.jpg

    Also painted the red band on the Boyce capsule

    IMG_4210.jpg

    Suddenly realized the ends of the Accur8 fins for the Estes MR will not be covered by the vinyl. The exposed parts needed some cleanup so more painting

    IMG_4211.jpg

    Finally, worked on the Boyce fins. Their instruction stated that with multiple coats of primer the 3D printed ridges would disappear. After the capsule difficulty, I decided to try with one fin. After 3 coats and sanding ... well, it needs more....

    IMG_4212.jpg
     
  15. Dec 9, 2018 at 4:03 AM #15

    les

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    Prepped the Accur8 fins (painted appropriate edges black) and skinned them

    IMG_4215.jpg IMG_4216.jpg

    Painted the bottom portion of the Boyce tower so now it is all red

    IMG_4217.jpg
     
  16. Dec 10, 2018 at 2:28 AM #16

    les

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    Glued the Boyce tower to the capsule - then realized I hadn't painted the white band first - Duh...

    Here are the 2 capsules side by side (and that is when I realized I forgot the white band)

    Now to see if I can paint the band without making a total mess.
    I'll do some sanding of the fins for the ridges, but for now the Boyce MR is on hold until my tubes come in (ordered during Black Friday - or should I say Saturday)

    IMG_4227.jpg

    Epoxied the fins to the Estes MR

    IMG_4219.jpg IMG_4225.jpg
     
  17. Dec 10, 2018 at 3:33 AM #17

    les

    les

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    Applied the decals to the Black Hole. I had multiple issues as they kept breaking
    The paint color came out darker than I thought it would. Look at a test spray I had done earlier. The color was coming out uneven (with all of the "nooks and crannies". The more coats, the darker it got.

    IMG_4228.jpg IMG_4230.jpg

    And the Estes Mercury Redstone is complete - ish. Still need to add the launch lug and the shock cord

    IMG_4231.jpg


    May be time to start a new build thread now..........
     
  18. Dec 14, 2018 at 3:46 AM #18

    les

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    Took some leftover vinyl to cover the launch lug and glued it onto the Estes MR

    IMG_4235.jpg IMG_4236.jpg IMG_4239.jpg

    Masked and painted the white band on the Boyce capsule

    IMG_4237.jpg IMG_4240.jpg

    And still waiting for my 3.9" tubes.....
    To be continued.........
     

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