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  #1  
Old 04-08-2022, 08:23 PM
electromag.11 electromag.11 is offline
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Default Cutting guide for Estes BT-56 body tubes (or Semroc BT-13 or Centuri ST-13)

Is there anyone who could print a cutting guide for Estes BT-56 body tubes (or Semroc BT-13 or Centuri ST-13)?

Similar to the yellow cutting guides that Estes sells.

If so, how much would it cost?

Thanks for your help!
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Old 04-08-2022, 11:11 PM
scott_mills scott_mills is offline
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Yeah those are pretty easy to create, are you talking about the round ones that fit inside the tube, and allows you to mark Fins?
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Old 04-09-2022, 07:13 AM
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Bill Bill is offline
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I think he means the doughnut-looking things slipped over the tube.

I wished those had markings for evenly spaced fins. That would be easier to use and more accurate for me than the ones plugged into the end of the tube.


Bill
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Old 04-09-2022, 09:33 AM
Bob Austin Bob Austin is offline
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Over on Thingiverse, user Scott Mills posted a number of body tube marking guides that can be printed. Sizes include BT-5, BT-20, BT-50, 29mm, BT-55, BT-60, BT-70, BT-80, and BT-101. I have downloaded the files but haven't printed any of them - yet.

The markers are set up to go over the outside of the tube. An angled end has markings for fin placement. The opposite end is flat for cutting tubes (see attached pics from Thingiverse).

The files can be found at https://www.thingiverse.com/thing:2872159
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Old 04-09-2022, 10:33 AM
jetlag jetlag is offline
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When faced with this problem, I always defer to the old fashioned way of doing things. Take an index card and wrap it around the BT. Pull it tight, making sure all the meeting edges are perfectly straight. Tape it or hold it, then mark with a pencil line all the way around. Then break out a new single-edge razor blade and cut along the line very carefully. Don't skimp on the sharp blade!
Works nicely, just not as convenient.

Allen
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  #6  
Old 04-09-2022, 12:02 PM
electromag.11 electromag.11 is offline
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Default Fin markings on cutting guides

Quote:
Originally Posted by Bill
I think he means the doughnut-looking things slipped over the tube.

I wished those had markings for evenly spaced fins. That would be easier to use and more accurate for me than the ones plugged into the end of the tube.


Bill


Correctomundo! It looks like @scott_mills includes fin markings on his cutting guides:
https://www.thingiverse.com/thing:2872159
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  #7  
Old 04-09-2022, 12:10 PM
electromag.11 electromag.11 is offline
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Default BT-56 Cutting guide with fin markings (or Semroc BT-13 or Centuri ST-13)

Quote:
Originally Posted by scott_mills
Yeah those are pretty easy to create, are you talking about the round ones that fit inside the tube, and allows you to mark Fins?


Scott: That's precisely what I was thinking! Just like the ones on your site:
https://www.thingiverse.com/thing:2872159

Dimensions are below. This cutting guide could also be used on Semroc BT-13 or Centuri ST-13.

BT-56
- Outside diameter 1.346"
- Inside diameter 1.304"

I'd love to buy at least two BT-56 cutting guides (in case one gets lost). Feel free to email or DM me with the cost.

Thanks for your help!
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