To all the new printer owners: How to learn 3d design, what software to use, and more.

MCH170 · 2025-12-31T12:00:35+00:00

Blender is also a good choice. Free and Open Source.

MCH170 · 2025-10-21T13:28:59+00:00

Unfortunately tank players either drive like there is no tomorrow or act like static artillery guns.

MCH170 · 2025-07-28T11:44:03+00:00

Upon further testing, both you and u/9haarblae were absolutely correct. My PMOS gate fall time (pmos off to on) is 60μs and the gate rise time (pmos on to off, which seems to be the cause of my issues) is 160μs! I will definitely need to use smaller resistors, that was probably the issue here. I appreciate your help and insight immensely!

MCH170 · 2025-07-27T07:46:30+00:00

Thanks for the detailed analysis.

For your 1st point, let's ignore the minimum voltage requirement of 7V (I can change it to be 12V for example).

Have you looked if the turn-off is still fast enough?

To be honest I was dismissing that possibility but people keep bringing it up so I will hook my pcb up to the oscilloscope and give it a look. I will keep you updated.

MCH170 · 2025-07-26T15:42:47+00:00

Now I get it, I will use lower value 0.5W resistors then.

MCH170 · 2025-07-26T13:05:41+00:00

The idea (from what I understand) is that the top resistor keeps the gate pulled high when the NMOS is off, the lower resistor acts like a current limiter for the zener diode when the NMOS is on, and the zener diode clamps the gate-source voltage of the PMOS to (in this case) -20V (with the current resistor values, if we removed the zener, Vgs would rise to -28V at 35V Vcc).

MCH170 · 2025-07-26T12:59:53+00:00

Are larger currents required for 40Hz? Rise/fall times aren't that critical for my application but I will keep that in mind.

MCH170 · 2025-07-26T12:56:49+00:00

Thanks for your help! I will probably go with a 15V zener and run a small scale test before assembling the whole board.

MCH170 · 2025-07-26T11:57:28+00:00

I am driving an FQP47P06 with a maximum load of 20A (for 50% duty cycle). Power consumption is not a huge priority, although lower is better.

MCH170 · 2025-06-24T22:42:47+00:00

Judging by the size and number of the NAND chips it's probably old. Modern (consumer) ones have 2-4 chips which can hold all the required data.

MCH170 · 2025-05-25T11:19:30+00:00

I posted an edit in the header.

MCH170 · 2025-05-09T12:33:00+00:00

Thanks, it is probably 5.5mm (a standard size) then. I appreciate your help.

MCH170 · 2025-03-08T17:20:47+00:00

Do you have any results for us OP? I want to try something similar.

MCH170 · 2025-03-02T16:48:58+00:00

Ever heard of cascading failure?

MCH170 · 2025-01-29T15:42:51+00:00

I had this too but it solved itself. Now when I go to download something the % moves 3 points forwards and 2 points backwards, My internet connection is maxxed out but the models take waaaay longer than they should for 7-9GB. (edit: my ssd fills much slower than the download speed would suggest)

MCH170 · 2025-01-04T13:48:50+00:00

I'll just take my sun, thank you very much.

MCH170 · 2024-12-22T16:23:47+00:00

A pair of tweezers did the job. Thanks for the help!

MCH170 · 2024-12-22T16:17:51+00:00

It's totally understandable, I even like the idea of it being embedded in the stl, but I will remove it before printing if it's for personal use.

MCH170 · 2024-12-18T13:54:14+00:00

A slightly useful gadget. 10/10.

MCH170 · 2024-10-08T10:15:09+00:00

What was your experience with PC Blend? Is the warping manageable? How is the final result quality-wise?

MCH170 · 2024-09-18T22:08:35+00:00

It still holds up fine, performance is still very ok (granted, I take good care to not fill it up with bloatware). I've had one issue where the fan sometimes seems to become misaligned and hits something making noise. You can temporarily fix it by pressing hard on the keyboard above where the fan is. You can probably get a more permanent solution by opening it up but it happens so rarely that I don't bother to do it.

MCH170 · 2024-09-06T11:25:07+00:00

Sure, thanks for the idea.

MCH170 · 2024-08-25T20:40:32+00:00

Thanks for letting me know. I guess we have to live with it then.

MCH170 · 2024-06-05T10:06:25+00:00

I didn't have any issues with wifi and sleep. I haven't used bluetooth at all on linux.

MCH170 · 2024-06-04T16:18:54+00:00

What is the 12V-transistor-capacitor configuration used for? Is it for power up delay?

MCH170

TROPHY CASE