Boring out Tornado Tubes

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bugwubber
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Re: Boring out Tornado Tubes

Post by bugwubber »

Team Seneca wrote: Right! Here's the ones I have (All 3 for $12) : http://www.harborfreight.com/3-piece-ti ... 91616.html
That is a most exellent find. Thanks!
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Re: Boring out Tornado Tubes

Post by Water Rocket Expert »

IS the one I got good?
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Re: Boring out Tornado Tubes

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Water Rocket Expert wrote:IS the one I got good?
Have you had a chance to try it out? That's the only way to know.
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Re: Boring out Tornado Tubes

Post by Water Rocket Expert »

Yes but will it where down quickly. It has a Titanium Nidride coating.
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Re: Boring out Tornado Tubes

Post by bugwubber »

Water Rocket Expert wrote:Yes but will it where down quickly. It has a Titanium Nidride coating.
Plastic won't wear it down. Just keep it in a case and you'll be good.
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Re: Boring out Tornado Tubes

Post by Water Rocket Expert »

Good. Do I really have to keep it in a case. Shouldn't my tool box be fine?
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Re: Boring out Tornado Tubes

Post by bugwubber »

Water Rocket Expert wrote:Good. Do I really have to keep it in a case. Shouldn't my tool box be fine?
Cutting instruments should be protected from being banged against by other steel tools. Don't have to of course.
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Re: Boring out Tornado Tubes

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Okay. I'll keep it safe.
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Re: Boring out Tornado Tubes

Post by Jamie5335 »

Hello Spaceman Spiff,

I had the same problem as you, here is how we enlarge the diameter of our tornado tubes to around 18mm.

We use a step drill piece and then file away the small grove left. This gives a nice clear edge to the inside of the Tornado tube:
DSC01156 c.jpg
DSC01156 c.jpg (70.65 KiB) Viewed 4 times
Here shows the drill peice and couplings for size.
DSC01636.JPG
DSC01636.JPG (65.7 KiB) Viewed 4 times
Here shows a comparison with the original and the widen Tornado Tubes.

I use a 15mm Launch Tube so 18mm gives enough room for the water to pass through the rocket when filling from the top.
Hope that helps!

Jamie B, JSB Rocketry
JSB Rocketry
Website: www.jsbrocketry.webs.com
Youtube: https://www.youtube.com/channel/UCczlD-uBjlYdJyBFEfuCEbg/feed

Jamie Bignell,
jamie.s.bignell@gmail.com
Somerset UK

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Re: Boring out Tornado Tubes

Post by Jamie5335 »

Sorry folks,

I forgot that I already posted this earlier on in the debate!!

I just added in the bit about filing out the small grove.
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jamie.s.bignell@gmail.com
Somerset UK

"The important thing is to know how to take all things quietly" -Michael Faraday.