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I just finished mine. There are a lot of things I would do differently if I were to rebuild one, but it looks pretty good. If the weather cooperates I hope to launch it this Saturday.

Just use the Dremel or equivalent. If I can do it, you'll have no issues.

I've been thinking about this as well. Something 3D printed that would tightly thread into the top of a C6-0 motor casing to "plug" it. It could be completely single use. How would this be any different from the approved dog barf + tape?

That is what I use when flying all my various incarnations/upscales of the NCR Cluster Duck with black powder motors. I have always used them in series, MJG specifically calls out that either will work: https://electricmatch.com/rocketry/see/23/6/bp-rocket-starters

The most simple answer is to invest in a Windows-based tablet. The MS Surface Go 3 can be had new for as little as $399. I use mine as a nightly e-reader, as well as a browser and it has no issues running RockSim at the field. I assume Open Rocket would run just as well.

I use nothing but this for PETG and PLA: https://www.amazon.com/SCIGRIP-Acrylic-Plastic-Low-VOC-Fast-Setting/dp/B0046768VS?th=1

You can always build your own RV: This rig did us for 5-6 years. It was great having exactly what we want, where we wanted it. Unfortunately it was built completely out of wood, which was the only thing we were comfortable working with at the time, and it decayed over the years. It was...

I had constant, sharp pain in my left arm. I went to a neurologist and the x-rays showed badly collapsed disks. Was scheduled for surgery the next week to fuse C5-7 with cadaver disks inserted in the gaps. I have had no pain since and my neck flexibility is pretty normal, even with a titanium...

Would he make those available to us? I have two BDRM's in the mail!

If only they had a Bandit upgrade parts kit, I'd buy a couple immediately!

My wife's 2023 Kia Sportage PHEV sounds like the Starship Enterprise when pulling into the garage. Or maybe just the teleporter.

We didn't have any trouble getting three x K535W-14A going. We used the cluster box and stock igniters.

Another amazing thing about this was watching him push the launch button in the morning, and then come back to camp that afternoon with the booster and sustainer. No helicopter necessary!

I will 3d print three 54mm plugs and go from there. I'm not sure I dare ground test in my back yard, maybe wait until we are on the playa.

I plan on flying a 6" x 9.5' rocket on three K535 DMS motors this weekend. I'm starting to worry about how much black powder to use as the ejection charge. The 14 second delays are only about a second short from ideal, but I plan on using a chute release and can also fly it with electronics if...

Is there going to be anyone at LDRS40 with a 38mm Giant Leap threaded closure for sale? I have lost the threaded ring to my 38mm SLIMLINE BELL-SHAPED NOZZLE RETAINER and will gladly buy the whole retainer even though I only need the 38mm threaded ring. I still have the tool, but managed to lose...

MJG igniters + https://bpasa.com/Cluster-box.htm = no failures!

I use their 1.1 oz Silnylon for all my parachutes, and it works great.

I thought I was seeing the effect of my panels aging, and then 2020 was the highest production yet, with 2021 in second place. I guess this could be climate change contributing to clearer skies???

The JLCR only cares about the pressure when it's turned on, when it gets above that at apogee, and then when it gets to the release altitude. All of those things happen outside the airframe.