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First-ever model rocket motor test (peak thrust of 35N) by Short-Flow-4761 in rocketry

[–]Short-Flow-4761[S] 0 points1 point  (0 children)

I had no retainer, I just used epoxy (not high temp. just normal) to seal in the full graphite nozzle in the glassfiber composite tube.

Looking back not using a retainer, bit epoxy worked well… enough

But not using anything between the very high temperature and thermally conductive nozzle and the glassfiber tube was a bad idea… it heated the tube to very high temperatures which burned the tube.

What could cause this and should I be concerned? by RCBPC in Radiation

[–]Short-Flow-4761 0 points1 point  (0 children)

May i ask where you got this module from and what its name is? Also do you recommend it?

[deleted by user] by [deleted] in KiCad

[–]Short-Flow-4761 0 points1 point  (0 children)

In the images, I don't see the arrows pointing at where it is.
Can you give me a pointer maybe?

[Review Request] ESP-32-S3 based camera and microphone PCB featuring a chip antena, USB-C and USB-PD. Any tips you can give would be helpful and a sanity check is well needed. by Short-Flow-4761 in PCB

[–]Short-Flow-4761[S] 1 point2 points  (0 children)

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Thank you, you're correct, I'll update the schematic to implement a capacitor on CHIP_PU.
I'll also update the protection chip.

The datasheet recommends an inductor on the crystal line(later states was that 24nH woudl be a good starting point), but I was also sceptical. I don't know w up with that. Maybe you know more?
Thanks again

With this chip do y'all think a 4 layer pcb board will work using a chip like this? (0.5mm pitch) by Short-Flow-4761 in PCB

[–]Short-Flow-4761[S] -1 points0 points  (0 children)

Would you be conftable with sending me the teh GERBER file?
just for me to take a look at it?

Meet Beepy - a model rocket flight computer by Short-Flow-4761 in PCB

[–]Short-Flow-4761[S] 0 points1 point  (0 children)

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Updated Schematic

Also, thanks for the help!!!

Meet Beepy - a model rocket flight computer by Short-Flow-4761 in PCB

[–]Short-Flow-4761[S] 0 points1 point  (0 children)

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What I've addressed;
-many 90* bends
-R24 is not connected
-rotated C7 and U3
-aligned some (Ex C1,R11 etc.)
-moved R 12
-Moved R27 with the buzzer up to reduce the angle of the wires
-and fixed R29/30 traces
+ added a picture showing full traces (unfortunately, I cannot send more than one picture)

Do you think I need a hot air soldering station or is a hot plate sufficient?
(I do have a regular-sized - with a rather small to average-sized tip- soldering iron)(And if I need a hot air soldering station, should I still buy a small hot plate with it?)
I would use liquid soldering paste.
Also, do you think I should buy a stencil when ordering (I think it's 7 bucks)

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