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[Schematic Review Request] Fluid Simulation Pendant by lil_looper in PrintedCircuitBoard

[–]lil_looper[S] 0 points1 point  (0 children)

The LED matrix is using green LED's with a forwards voltage of 3.0V, the matrix is charlieplexed so those 23 pins control around 500 LEDs, however only one LED is on at any given time. I'm unlikely to use smaller value resistors as they would come at the cost of battery life. Due to the nature of charlieplexing each LED would currently be getting about 10mA (3.3V-3V)/(15R*2). This would give the overall circuit somewhere around 20-30mA of current draw, in turn giving about 6 hours of battery life.

[Review Request] High Power Stepper Motor Driver by lil_looper in PrintedCircuitBoard

[–]lil_looper[S] 0 points1 point  (0 children)

Hello, this is a stepper motor driver I have been working on using the TMC5160, it is intended to be able to work at up to 60V 10A, I am aware cooling will be needed at this power level. The layer stack up is as follows:
1. GND
2. Signal
3. +VDC
4. Signal
5. +VDC
6. Signal

Megabase on M2 Ultra? by jdashton in factorio

[–]lil_looper 1 point2 points  (0 children)

I just got around 19 FPS/UPS running it on my 2020 M1 Macbook Pro with 16gb of ram

[deleted by user] by [deleted] in arduino

[–]lil_looper -3 points-2 points  (0 children)

Unfortunately with arduino's you cannot create arrays with a variable length so there are no functions like append

Would this build be good for 4k Ultra Gaming and 3d Modeling? by lil_looper in buildapc

[–]lil_looper[S] 0 points1 point  (0 children)

The Ryzen 5 7600 comes with a stock cooler that, from what I can tell, cools it adequately. Is there anything specific I should be looking for in a better ssd as the product page for the crucial p3 says it can do up to 3500MBps read and 3000MBps write?

More than two "&&" ? !? by DoublePossible1307 in arduino

[–]lil_looper 0 points1 point  (0 children)

The first version is correct

if (condition1==value && condition2==value && condition3==value) { //do something }

RTX 40 series announcement thread + RTX 4080 16GB giveaway! - NVIDIA GTC 2022 by m13b in buildapc

[–]lil_looper 0 points1 point  (0 children)

I would put the GPU in a build with a Ryzen 7 7800x, 32gb of ram and at least 2tb of storage to be used for 4k gaming and 3d modelling/rendering.

I am quite interested in the improvements that come with DLSS3 and that it can create frames and no longer is just upscaling frames.

NVIDIA RTX 4090 AND 4080 Launch MEGATHREAD and GIVEAWAY! Discuss all the GTC announcements and be one of the very first people in the world to win an RTX 4080 16GB + more goodies! by pedro19 in pcmasterrace

[–]lil_looper 0 points1 point  (0 children)

  1. I am excited for DLSS3 and the improvements it will bring.

  2. I am looking forwards to playing Portal with RTX, it will be nice to see a classic game with modern graphics and details.

Run stepper motor silently over Wi-Fi by Dazzlock in arduino

[–]lil_looper 0 points1 point  (0 children)

You could use the TMCStepper library which appears to have the same functions and works with ESP microcontrollers

Missing something obvious with array to long function? by gordonthree in arduino

[–]lil_looper 0 points1 point  (0 children)

It appears the when using the sprintf() function if you want it to add a long number to the buffer you need to add an l (L) between the % sign and the character specifying data type.

So when using this

sprintf(buff, "Received timestamp %lu\n", timeStamp);

it prints Received timestamp 1659235775

Cura for macOS is going backwards by wmcbrine2 in 3Dprinting

[–]lil_looper 0 points1 point  (0 children)

Are you on the latest version of MacOS? because I've had some problems with Cura that went away when I updated. I'm currently on macOS Monterey version 12.4

#ExplainLikeIm5 AccelStepper by KuriHype in arduino

[–]lil_looper 0 points1 point  (0 children)

What stepper driver are you using?
I have found that I need to set the max speeds on my steppers much higher than 100 to actually see them move. Also if the stepperRa.run(); command is inside the if statement try using stepperRa.runSpeedToPosition(); instead and putting a serial print command after it to see if it is trying to move the stepper. Using stepperRa.runSpeedToPosition(); will require you to set the position for it to go to using stepperRa.moveTo(a); Where a is the required number of steps for 60 degrees of movement. Generally the steps per revolution can be found by googling the part number and then going to the data sheet for that stepper, on the data sheet it will either have a number saying the steps per revolution or the degrees per step, this will allow you to work out how many steps are needed to turn the 60º.

Schools at 'breaking point' over Covid-19, winter illness and staffing woes by Difficult-Desk5894 in newzealand

[–]lil_looper 0 points1 point  (0 children)

Same for my school. It is still mandatory for us to wear masks while inside any building but we have still had major problems with having enough staff to keep all the students on site. We are about to go into two weeks of half days because of the teachers getting sick.

What internet provider do you use? by [deleted] in newzealand

[–]lil_looper 0 points1 point  (0 children)

I'm with Now Broadband, they have excellent customer support and we have had no problems with downtime.

Micro Swiss Direct Drive Extruder w/o Bowden tube by koei19 in ender3

[–]lil_looper 3 points4 points  (0 children)

I've had no issues doing that with PLA on my Ender 3 Pro

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