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Cherokee D At a glance scale

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Long_Gone

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This is my first kind of build of the Cherokee D as I call it At A Glance Scale. Meaning this is not for purists that are exact or for any contest. I got some tubes from my daughter. She cuts vinyl and the tubes were left over and I thought I could build a rocket out of them. The tubes are about 3 times as thick as Estes tubes but they are free. So I gathered my senses and did the research and located some references that would help me along the way. First the tubes are 42mm O.D and 40mm I.D, a little too big for an exact Cherokee D. So I swagged the numbers and came up with I think is just right.

LG~
 

Long_Gone

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So here are the Fins, two piece of course (because the balsa I had was not wide enough). I got the references from the Cherokee D thread right here. Link here >

K'Tesh has done some awesome work and I thank him for it.

LG~
 

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Long_Gone

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Next up join the two tubes. So I see the Cherokee D (long version) had an 18" BT but my BT is just a little but wider so I did some math and came up with 20" for my BT and the fins were calculated from that number....Forgot that in the last post. So here I am sizing up the coupler and cutting the tube to length. The two were epoxied together...thin layer!
LG~
 

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Long_Gone

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While I was doing the cutting and gluing Jack Hydrazine's nose cone was printing (https://www.thingiverse.com/thing:3990420) but it did not do too well and had issues over multiple prints. So I decided to hit Fusion 360 and make one myself. You see in the first photo the magic happening, contrary to popular belief this where it really happens. The next photo shows the two side by side mine on the left and Jack's on the right. Don't know what happened both were printed with the exact same settings. Last photo Fusion 360 work. I know it is not perfect but " I think it is as close as I want to mess with it" Enough said. I am having fun not fussing the small stuff.

LG~
 

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Long_Gone

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So the ugly tube and it's joint. Not bad have to clean it up and seal the tube and make it smooth. Not sure how much fussing I will endure here.........But I like my tube smooth!!!!!
LG~
 

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Long_Gone

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Now some would think I am crazy, building a rocket out of scrounged up parts and crappy prints. That would be true if I had the parts right now, but I don't. I also went on HobbyLobby's web site and ordered an Cherokee G and a bunch of D and E motors.........Now I am crazy, but I want a beater bird and this is it notice I am building the D version (and secretly putting in bigen's in it) and with the tubes being thick it should take some beating. No I do not want a Medium-high power project rocket that can touch the face of God! I want a cool looking rocket that will perform decent.

LG~
 

Long_Gone

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So I think my nosecone came out pretty close to the image in the instructions, now I noticed there some variations of this along the way. I am not trying to be exact, I like it. I will round it off with some sand paper and smooth out the cone as best as I can and paint it Red! Yes small error in the shoulder and I will clean up the stl for the next print to eliminate the tape. <- Big deal!!!!
LG~
 

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Long_Gone

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Next came the Launch lugs and I could not find any and no good .stl's. I had one that was for a 3" BT and a 1/4" rod but I thought that was way too crazy and would make the rocket look lopsided. So I scoured the house and found some straws that were 3/16" O.D. PERFECT!!!!! I glued them to smaller diameter Barbecue skewers and they look great and my scale cannot weigh them so they are weightless, nice!
LG~
 

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Long_Gone

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That's enough for tonight. Tomorrow I will do some filling in the spirals on the tube and finishing the motor mount. I might steal a parachute out of the other rocket (Apogee chute) 12" dia. for this patched together build. I have the white and red paint in the garage....................Sticker sheets are coming Sunday so I can print the decals, Yep I said it! They are vinyl sheets you put in the printer and they are adhesive, so why not. Nothing is as it should be on this build.
More to follow.
LG~
 

DaveinMI

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Thanks for this thread ! I bought- built - flew one about 1971 or 72. It was my first launch of anything bigger than a "C". WOW I thought ! I was hooked on moving to higher power !
 

Long_Gone

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Well this is not high power, just a sport rocket to fly out back.
LG~
 

Long_Gone

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Spent some time on the stickers today, not perfect but doable. Filled and sanded the BT and Nose cone. I need to make the centering rings for the motor mount. Here a few photos of some of what I did last night and today. You can see the sticker sheet under the sanded bodytube/nosecone.

LG~
 

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K'Tesh

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I'm in... Glad my research was able to help with this.

Now, a thing to keep in mind... The first version of the Cherokee had the standoffs for the rail, but by the time the 2nd version (also short) that had been dropped. I realize this is kind of a mash up, but I thought it would be something you might have missed.

Pointy Side Up!!!
 

Long_Gone

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No I saw that but Im struggling with what to do the Instructions I am following don't have the stand offs but I saw you post and am considering it. And yes not at all perfect but coming well. Seeing that I was exposed to COVID and have to stay home two weeks. More construction happened last night and some today will be posting soon. I wish I were 13 again. I am more that 3x that now sucks.

LG~
 

Long_Gone

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So I was trolling the house for "Chipboard grade cardboard" and came across this Keebler crackers box that is double the thickness of a cereal box, perfect. These were made in to the three centering rings and one ring being a thrust ring (not glued to the inside but the bottom of the body tube to provide a strong connection to the body tube for the engine to push against). I do this with all of my rockets. I then applied epoxy to the base ring to further strengthen the parts.
LG~
 

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Long_Gone

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Fins are getting sealed with lacquer (Correction Zinsser's Shellac) (spray) in light coats to serve as sanding sealer, seeing I have no real sealer or Elmer's glue to make some. They were sanded smooth before spraying with 320 grit. I am opting to go contrary to the instructions to sand the leading and trailing edges with some round in them to give them some durability. I am not concerned to hit the Karman line with this rocket, and am concerned with durability.

LG~

1603048445269.png
 

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Long_Gone

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Amazing what you can do when you scour the house for parts and find a hobby shop.

LG~
 

Long_Gone

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Trying to get it right. Sanding out the uglies, and repainting it to my liking.
BTW the Cherokee-E came in and it seems frail compared to this one, I already thinking of making one of it like I am doing for the Cherokee-D.

LG~

Sorry for Portrait mode.....................
 

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Long_Gone

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I did not like the shellac, I will go with Sanding sealer or Elmers and water (thinned to creamy texture) to fill the fins and smooth the tube.
This stuff did not work like it wanted it to.

LG~
 

Long_Gone

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Matching the monitor and printer colors>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>WTF!!!!
Ok the stickers sucked and were purple so I printed and printed and adjusted and finally I believe I have something I can live with.
First photo with the way off color purple!
Second photo all the work correcting the color.
Third more work and the one next to the nose cone works for me but I had to clean the printer head because it was missing some print. Grrrrrr!!!!!


LG~
 

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Long_Gone

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I put some clear UV spray on the stickers and will apply them tomorrow and then clear the entire rocket. Whew!! I did not want break down and buy decals because I wanted this to be a scrounge build while I was quarantined. So I am ok no COVID and everyone else is ok too. <-Sorry kind of personal but relevant.
So the Motor mount is 24mm and I just happen to have some D and E engines for this beast. I will take it to the RC field to fly it so it does not go south for the winter. Yes, glad you asked. It will be on video. Thanks for asking, that's a good question. Altimeter. Yes we will be flying one on this mission. Any more? Not a real high power build and not very scale, but will be rewarding when done. I say this because when I was a kid I was NOT allowed to get this rocket in 1977. Why? Mother was too cheap, and needed money for cigarettes. So I built it from scratch with junk around the house. It was cheaper because I had a lot of stuff already, like the motor tubes, balsa wood, parachute and a 3D printer. Get one of the Creality ones I love it, makes nosecones from PETG <-----------------
Ok.
LG~
 

K'Tesh

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I hope that matching the colors with the paint wasn't too painful... I averaged the red color from the scan of the original decals, and then used that average color to replace all the red I could. Saving the results as a .png file, I hope, made replacing it far easier than trying to fix a .jpg image's colors.
 

Long_Gone

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Was painful but I saved my settings for the printer and it works every time.
LG~
 
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