- Joined
- Mar 15, 2011
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Ran about 70 of these yesterday. Took a few photos for Y'all.
What was the longitudinal pass all about? Looks like the tool moved but the lathe spindle wasn't running. It looks deeper than the surface you're leaving, unless you're doing two passes... but that seems unlikely with that machine and PVC in the chuck.
Good Eye! That's a trick I use when cutting plastics!
Notice I'm breaking chips? Without the score pass you will wind plastic around the workpiece.
It cleans up on the finish pass.
N
Ah! I was wondering how you made couplers for these. Makes perfect sense now.
For 3" and 4" thin-wall PVC pipe, I use LOC or Blue body tubes as couplers--they have the right OD to fit inside the PVC pipe. But turning down thick-wall pipe is classier. Hat tip.
Now you have to tell us what you do for PVC nosecones in these slightly oddball-diameter nose cones! (Mine are about the opposite of classy--they come straight from the sewer!)
Ari.
Ah! I was wondering how you made couplers for these. Makes perfect sense now.
For 3" and 4" thin-wall PVC pipe, I use LOC or Blue body tubes as couplers--they have the right OD to fit inside the PVC pipe. But turning down thick-wall pipe is classier. Hat tip.
Now you have to tell us what you do for PVC nosecones in these slightly oddball-diameter nose cones! (Mine are about the opposite of classy--they come straight from the sewer!)
Ari.
Rocketgeek: I'm happy to do a build thread next time I build one. They do tend to use larger motors than what's in your signature (I though L so far).
Eric: I have a question about adhesives for you. I use solvent cement to bond fin tubes (https://www.tapplastics.com/product/repair_products/plastic_adhesives/ips_weld_on_2007/133). This is easy to apply and has held up to the largest L motors I threw at it. I was talking to a friend about flying one on even bigger motors, and he suggested making the fins out of FG tube. My initial reaction was that it's difficult to bond PVC and FG, but then I thought of your rockets, and I think you have had good results binding FG and PVC with epoxy.
I wonder if you can elaborate on your experience bonding PVC and FG.
Ari.
1.Unsure of how/where the recovery system is to be attached.
2. Ditto the launch lugs. I assume that they were to be epoxied on but I may use mini/micro rail buttons instead.
3.There are two extra holes in the tail cone, what are they for?
4. There is one longer bolt with a different size head, what is that to be used for?
[Don't know]What size head are the smaller bolts? .050", just haven't gotten out to the shop to dig that size hex wrench out.
5.And there is a piece of white plastic (1.5"x3"?), any idea what that's to be used for?
Thanks, Dave Cannell
NAR 90099
TRA 14371
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