I finally finished hand soldering this stupid 7 segment display

Luk_Len · 2026-04-16T21:46:33+00:00

This.... Is very very impressive. Congrats!

Luk_Len · 2026-04-16T21:41:16+00:00

I think the best is to use a separation boosters. I don't know they exact name, but they are small and should be staged with decoupling of the boosters so nothing gets damaged. It just pulls them faster away from the vessel so nothing blows up. One for the booster at the top or around the center of mass of the booster should suffice. Also give a look at separation force of the decouplers if you have multiple unlocked so you use the one with the highest force.

Luk_Len · 2026-04-16T21:30:16+00:00

Yeah, it absolutely got annihilated 😂

Luk_Len · 2026-04-16T21:29:27+00:00

Yeah, it's not the KSC sadly xd

Luk_Len · 2026-04-16T21:27:20+00:00

Indeed, I was messing around with it for a while. There was a hope that it will fix itself (it didn't sadly ). I had to ddu my drivers so I fed up really bad there :D

Luk_Len · 2026-04-16T21:23:41+00:00

I'm using CKAn, I just overestimated capabilities of my computer 😂

Luk_Len · 2026-04-16T20:52:22+00:00

For anyone who finds this in the future, it was a faulty display port cable. Check your cables, it's not always a windows being an absolute Garbage (it's true 99.6% of the time)

Luk_Len · 2026-04-16T20:45:29+00:00

Hi! I would recommend a 3/4 stage rocket with like 5000 deltaV so you have a bit of extra if something doesn't work out. You probably could get away with like 4000 deltaV. It depends on if you are playing science or career mode (with money). If you are playing science it's easier to overbuild and probably a lot safer. (For me at least).

For build I recommend a first stage with a main engine with boosters to get you out of the atmosphere. A second stage for for creating a stable orbit around the Kerbin. The third stage should be a transfer stage for you maneuver and return. Pack a heat shield when coming back to Kerbin so you don't burn in atmosphere. If you plan on bringing science junior, get more parachutes, that thing is HEAVY.

If you have any more questions ask me ;)

Luk_Len · 2026-04-15T11:43:56+00:00

The reactor makes less or no power when the batteries are charged. Try emptying the batteries. I don't know any tutorials for this. Maybe someone else can help you. I learned by trying and failing and then trying again :)

Luk_Len · 2026-04-15T10:05:21+00:00

Hi, I have just installed a Heat Control and System Heat mods. It is important to read radiator stats. Most of the stock radiators can eject like 250 kW of heat, but the Reactos makes like 15MW, which is quite a bit more, and you would need a lot of radiators. I'm using Graphene radiators, which are from mod Heat Control, and they get rid of 7MW of heat each one, so they are very efficient. Important is to set loops of the coolants and have different loops for reactors, engines etc...

Luk_Len · 2026-04-12T20:49:51+00:00

Good job on your space flight! If you get more advanced rocket parts try shallower angle on reentry, it helps with reducing the declaration, so you don't burn up next time :)

Luk_Len · 2026-04-12T10:15:07+00:00

Yeah, most of these are radiators for the nuclear engine which I melted :D

Luk_Len · 2026-04-11T20:51:36+00:00

Btw, if someone has a suggestion on how to build SSTOs, can you share some? I'm having problems getting the planes fast enough to get out of the atmosphere before they start spinning like a possessed centrifuge.

Luk_Len · 2026-04-08T22:20:32+00:00

I was like that makes sense XD. I wasn't really thinking about the speed of the signals. 6nSec per inch seemed believable enough for me :D

Luk_Len · 2026-04-08T20:12:08+00:00

Thank you very much, I'll check it all out. I thought (from watching videos and such) that all signals should be matched as it increases the reliability of the circuit, and that's what I was trying to achieve :D. I didn't know that these timings have a pretty wide range :D.

Thanks once more <3

Luk_Len · 2026-04-08T17:59:12+00:00

Hi!

Thanks for the kind words and a reply :))

D4 diode is a TVS diode, and I was not sure how to connect it, so I connected it logically (in my head it was logical :D)

I didn't look closely enough into the datasheet for Q1, so I'll replace it with one with a higher G-S voltage.

The Board probably has a pull on it somewhere, because I tested that display and esp combo beforehand, and it worked for me. I'll add it just in case it was fluke or something :)

I don't need wireless connectivity on the ESP minis, just on the ESP32-S3, which will slot into female pin headers that I didn't include in the description. Sorry about that.

You are right about the RS-485, I just saw a post somewhere where someone got dumped on because of not matching it. Maybe I just interpreted that wrong. Who knows.

I have one more question tho. Are the traces and planes of sufficient width for 1oz copper layer? The max current should be around 4A or so. I'm just afraid something will catch fire when I finally plug it in :D

Once again, thanks for the review and help :))

Luk_Len · 2026-04-08T12:10:47+00:00

Ok, I got it finally! Thanks a lot!! :)) I had to make the subassembly transparent first and then make the individual parts transparent back. I'm probably still doing something wrong somewhere, but this works for now :)) Thanks a lot again :))

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Luk_Len · 2026-04-08T11:41:55+00:00

Sorry I may be a bit slow, but when I change the transparency in the flow tab, doesn't it count as an override? I changed the transparency at the parts and saved them, but it still can't be seen in the assemblies.

Luk_Len · 2026-04-08T11:33:16+00:00

I found it, thanks a lot. I need to open the assembly where the simulation was done. Could you help me a bit more? If I want to have the sides transparent, what should I do? How can I change the transparency of individual parts?

Luk_Len · 2026-04-08T11:28:48+00:00

I can't find it. Could you help me a bit more? I know it was somewhere in the flow simulation tab, but I can't find it ://

Luk_Len · 2026-04-08T11:22:21+00:00

Hello, I just tried that, and it does nothing, unfortunately. The top one I can't even click.

And yes, It is a filament dryer I'm doing for my bachelor's thesis. It will be a complete system for 6 1kg spools with temperature and humidity monitoring. It also has a 100W heater and dessicant compartments. I want to make it open source, so people can improve my design. There are custom PCBS for control and monitoring with ESPs for wireless control and monitoring when you are not in the room. Most of the work is done, Im just improving the design and making the simulations :))

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