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King Cat anyone ?

Discussion in 'Single Wing Aircraft Plans' started by ewo, Apr 18, 2010.

  1. ewo

    ewo Moderator Staff Member

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    I forgot how much fun this little plane was to fly until i found an old video the other day
    My original was from bluecore. It was a blast...
    I wanted to cut this plane before posting the code but im still fighting my machine. :?

    anyways .... this file is for 3mm depron . it has a KFM 3 airfoil and the nose is triple layer.
    It should be fun when im able to cut it ! :(

    It would be a simple chore to convert this file to fanfold if there was interest......

    As always Just have fun with it ! Attached files [​IMG] King Cat.wmv (12.3 MB)Â King Kat.cnc (48 KB)Â King Kat.skp (402.9 KB)Â
     
  2. 7up

    7up Moderator Staff Member

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    ewo, thanks for this one!

    What troubles are you having with your Phlatprinter?
     
  3. kram242

    kram242 Administrator Staff Member

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    Nice! Thank you ewo :) This one looks fast
    Mark
     
  4. ewo

    ewo Moderator Staff Member

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    Im adding a couple little Pic's. I did get it cut. but it was a pain !
    If i run the machine anything over 25 ipm the x just sits there and buzzez :x

    I found a couple little things with the file. Nothing big though
    If you cut from this file keep a sharp hobby knife handy as well as some sand paper for the leading edges and the nose .

    Still need to add the spars ( 1/8" ) hardwood spars, " I WILL USE CARBON FIBER "
    I will also power this "OLD SCHOOL WITH A DCM-189"

    Feel free to use any power system you choose !! As well as any thing else for bracing the tail booms and wing. Attached files [​IMG] [​IMG]
     
  5. Chuck

    Chuck New Member

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    I am not able to get to my shop to check this out in Mach3. What is recommended bit size, where is good starting poing for CG, and I am not familiar with the motor you described (DCM-189) so would a 24gm outrunner be good for this one?

    As if I didn't have enought to to already!

    Thanks

    Chuck
    ...somewhere in Indiana...
     
  6. Anonymous

    Anonymous New Member

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  7. kram242

    kram242 Administrator Staff Member

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    Nice looking plane ewo! That is a great job on the code.
    One thing I did notice is that you have your feed rates set to 8' instead of units/min
    You should change that to say 15 or 20 on the MKI and 200 for the MKII
    Mark and Trish Attached files [​IMG]
     
  8. 7up

    7up Moderator Staff Member

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    Hmmm, I have always left mine at 100 for my MKI with very few issues.

    I did not know this. Thanks Mark.
     
  9. rcav8r

    rcav8r Moderator Staff Member

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    I believe that it will only cut as fast as what you specify as the top speed in MACH. In other words if you tell the file to cut at 100, but MACH has the Max speed set to 20; it will cut at the max speed set by Mach... in this case 20.
     
  10. ewo

    ewo Moderator Staff Member

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    Mark, the paramaters box you showed cannot have came from my file.
    This is what i see Attached files [​IMG]
     
  11. 3DMON

    3DMON Moderator Staff Member

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    I see the same thing as Mark ewo.
    If the file was saved in architectural it will show feet and inches. If it is set to fractional it will show the normal figures. Also if it was set to mm's it would have shown mm's in the box.

    Somehow just before you saved the file it may have been saved into the architectural template. Perhaps you copied it to a new file to post on the forum?? Attached files [​IMG]
     
  12. ewo

    ewo Moderator Staff Member

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    Shawn, Again this is what i see.
    I sent the same file to the forum that i have.I didnt change anything.

    Please, whats wrong here ? Attached files [​IMG]
     
  13. ewo

    ewo Moderator Staff Member

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    Are you using an upgraded version of the script ?

    Please check one of my other files and see what you get in the paramaters
     
  14. 3DMON

    3DMON Moderator Staff Member

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    Oops, yep I forgot my script and Mark's is the beta. Tim has been working on it to output mm's and this is why it also shows feet and inches lol.

    It would be good practice for you not to work in Architectural because it will show up in the later versions of the script like this.

    Decimal is the most precise method btw.
     
  15. ewo

    ewo Moderator Staff Member

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    You really had me biting nails there boys ! ;)

    I will change my format to decimal. Thanks for the tip !
     
  16. ewo

    ewo Moderator Staff Member

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    Wow, :shock: I have no way of telling how long the line is thats 7.6005" I will switch back now thank you :lol:
     
  17. 3DMON

    3DMON Moderator Staff Member

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    Aw :lol: , that would be a little bit more than 7-1/2" and a little less than 7-5/8" LOL.

    If you want fractions go to fractional mode instead of architectural, then you will not get measurements in feet.
    The main thing to remember is every time you see a ~1/4" that could mean it is actually 3/16" or sometimes more than a 1/4". The ~ means it's around that measurement.
    An easy way to see this is to draw a line and lets say 7 1/4" in fractional mode. Then go and change it to decimal mode and measure the line you just drew. Most of the time it will not show 7.250 but instead it will be off a little.

    Just a little fyi. ;)
     
  18. frankrcfc

    frankrcfc New Member

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    I have built 2 of those early on. They are fast and fun to watch. Just make sure the twin booms are good and rigid. Also don't glide in to slow as the tail will drop right out.

    [​IMG]

    [​IMG]
     
  19. kram242

    kram242 Administrator Staff Member

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    Nice looking Frank
    Mark and Trish
     
  20. frankrcfc

    frankrcfc New Member

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    Secret is the phlatprinter of course ;) No way I would have the patients now to manually cut that out. :lol:
     
  21. ewo

    ewo Moderator Staff Member

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    Yessir you gotta stiffen up those booms !

    Here is a picture of the first couple i built a long long time ago
    with a J 250 installed if i remember right. Might have been a DCM-189.
    Too long ago to remember ! Attached files .jpg][​IMG]
     

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