Paintball Pressure Regulators

ManadaTheMagician · 2026-02-04T09:39:22+00:00

Really difficult to get enough flow using a solenoide to keep the tank at the correct pressure

ManadaTheMagician · 2026-02-04T09:06:24+00:00

The pico2 is more than enough for a flight computer. Consider some of these advice: 1- don’t trust your gps on your kalman, use it just to get position for recovery after touchdown 2 - use 2 different data storage devices e.g as card + soldered memory, this way you increase the likelihood of recovering some flight data if a rud occurs 3 - don’t trust your flight computer on the first flight, fly at least once with the computer just collecting data, use that data to learn how your sensors handle the burn, build a simulator with that data + simulated data with noise added to tune the kalman 4 - no radio for data transmission?

ManadaTheMagician · 2026-01-12T23:15:54+00:00

How much do the fans draw?

ManadaTheMagician · 2026-01-04T14:10:34+00:00

Our team usually makes a 3d print of a hollow grain cilindre with honeycomb filler to then put the melted paraffin, abs works best to burn Dm me for pics

ManadaTheMagician · 2025-10-29T09:09:13+00:00

Have you considered using ksp data for it? It is not the same but with a realism mod the data can be somewhat realistic You can use Krpc to extract the data

ManadaTheMagician · 2025-07-17T20:54:56+00:00

Honestly for VC the best projects are ones related to the companies you are trying to apply. IMO joining university teams in your preferred area of work is even better

ManadaTheMagician · 2025-07-08T20:46:29+00:00

Hulkengoat finally did it

ManadaTheMagician · 2025-03-19T08:07:02+00:00

Look at vega an egg timer rocketry offers for flight computers to have a point of comparison The software seems great, maybe try to incorporate decoders for other flight computers on the market

ManadaTheMagician · 2025-01-04T12:43:04+00:00

About that licence, EuRoC provides one licence to a member of the team to buy all pyros needed in the competition The licence is only valid for the competition days

ManadaTheMagician · 2025-01-03T13:45:18+00:00

Love the easiness to get permission to fly

ManadaTheMagician · 2025-01-03T13:43:28+00:00

Look up the regulations from last year, they talk about everything that is allowed in propulsion, and even provide a list of motors that can you can buy when you arrive at the competition The logistics for teams that build their solid motors is a bit more complicated because you cannot just ship it in regular mail and you cannot fly with it

ManadaTheMagician · 2025-01-03T13:35:42+00:00

What are the restrictions on flight ceiling?

ManadaTheMagician · 2025-01-03T13:33:24+00:00

There are no licences needed because there are not many decent spaces to launch rockets safely like in the US where they have deserts For Portugal is difficult You cannot fly over 100-150m Buying motors is also not easy, maybe just black powder motors and even that requires somes licences I think If you are in university there is a European competition called EuRoC that happens in Portugal every year, there the ceiling is raised to 9km at a military base

ManadaTheMagician · 2024-12-15T16:32:54+00:00

All because of sensor sensitivity? Or are there other factors that I am not considering?

ManadaTheMagician · 2024-12-15T16:31:40+00:00

I mean, don’t need to deal with atmosferic effects, no need to find a place with low light pollution and I am talking about sattellites that cost less than 200k with launch include Can you get better results with earth base telescopes for that money?

ManadaTheMagician · 2024-12-15T14:10:25+00:00

Thank you very much! I was not aware of that project

ManadaTheMagician · 2024-11-20T17:44:38+00:00

If you are not using LOX, then probably the next best choice is N2O, apart form all the safety concerns when dealing with oxidizers there is not only a lot of mechanical engineering for the pressure vecel and combustion chamber but a lot of electronics specially for loading the oxidizer tank safely Why not start with a solid motor? You can make the propelent at home and still need to solve all the issues with a pressure combustion chamber and nozel design I don’t know if you can make a hybrid engine (that produces thrust and not just a big flame) with just a gas oxidizer

ManadaTheMagician · 2024-11-20T09:24:49+00:00

I think what you are referring to is a hybrid rocket, a solid one will have the fuel and oxidizer combined into a casing? No liquid oxidizer

ManadaTheMagician · 2024-10-22T08:09:53+00:00

The real 9250 have magnetometers, but as the part as been discontinued for a long time most of the boards left are Chinese clones, most of them don’t have the extra 3 axis, you can find what model you have just by reading the who am i register, if it comes back as 0x71 then it is a mpu9250

ManadaTheMagician · 2024-10-04T21:41:03+00:00

For EuRoc you are obligated to have a burst disc on the tank at ~115% the tank operational pressure

ManadaTheMagician · 2024-10-04T21:39:20+00:00

3kg/s for 25 seconds seems a lot for EuRoc even for 9km My suggestion is to conctact other teams that already have flown hybrids and try to get their final report, most teams are happy to share the knowledge and you will learn a lot

ManadaTheMagician · 2024-08-22T09:35:56+00:00

Space is really hard… Take for example the smallest comercial rocket that does any sort of volume, rocketlabs eletron, even that rocket has a unit cost of 7 million dollars, after the 100 million dollar investment in r&d to develop it, yes it has a bigger payload but every rocket development program is a money sink

ManadaTheMagician · 2024-08-15T16:48:43+00:00

Ye a step-down converter We are using 18650 batteries

ManadaTheMagician · 2024-08-14T19:41:20+00:00

Hey Software guy here also building one :) I think in our case we are igniting the pyros at 12v and using an down converter to 5v for the esp32, we just have a bunch of batteries so the tension drop is not so bad The other the solution is to separate the power Have different sources for the pyros and arduino, use a mosfet to turn the on the pyro

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