inmysocks (version: awoo) @inmysocks@awoo.space

Make sure you read all of this article.

The real take away is in the second-to last paragraph.

https://lwn.net/Articles/780078/

The two biggest engineering problems that I run into consistently are:

Loose goddess damned wires
and
Getting a decent power supply

very few of my problems come from the knowledge side of things.

@ekaitz_zarraga I don't think that I have ever rejected a pull request. I have modified pull requests but that was mainly to match coding styles.

I don't really get people who don't respond or anything when they get one

@theoutrider like rugby, I have never found anyone who can explain cricket to me, not even the people who play it.

@ekaitz_zarraga I think that one big repo would be best. It makes things easier to find.

I had to remove my desktop from the known hosts in /home/gitea on the rat pie box and then remove the rat pie box from the known host on the desktop and login again so that both computers would associate that public key with the correct account on the rat pie box.

This took me over a year to figure out.

Bleh.

Is this #Engineering ?

I made the rat pie box over a year ago, today I finally tracked down why I couldn't ssh into it from my desktop but I could from my laptop.

I set up the gitea user on my desktop so I both the rat pie box and my desktop had that pubic key set as logging into the gitea account, but after setup the gitea user is set so you can't login to it.

My local gitea server has 145 repos in it.

I need to start making sure that my projects are properly shared and publicised. And possibly make things that are more useful

Today I got the x, y and z axes working, and everything is set up nicely.

Then the laser started acting up, it was always on regardless of what I did.

So I tested everything and it was all working nicely. So at the end of the day I finally gave up and decided that the laser just isn't reacting to the PWM input and it is a laser problem.

So now I get to figure out if a motor driver is good enough to power my laser.

#Engineering

So a copper trace on the PCB was damage and sometime around when the fuse burned out the trace also broke so no power was being delivered at all.

It was all very confusing until I found the broken trace. I can solder a wire onto it to fix for now and we are ordering another board. Luckly the boards are cheap.

@suetanvil@mastodon.technology yes, very careful. I don't have the laser hooked up yet, it is just the frame, and I am being what is probably ridiculously paranoid about the dc power supply for the motors.

We have an enclosure for the cutter once we get the laser hooked up. We are going to put a camera inside and have a kill switch hooked up to the door.

@InTheLandOfTheRisingSun in theory yes. Andrew that you have mentioned it, once I get it working I think I will have to do that.

Why do they have a fuse if you can't replace it reasonably? If the fuse blows there isn't a reasonable way to replace it.

The solution on the internet seem to be 'replace the fuse with a wire'. So yeah, I guess that is what I am doing.

And now I have burned out a fuse on the CNC control board.

I have broken more on this project that I have on any other project.

How fun.

@InTheLandOfTheRisingSun at the moment not much because we have a pretty weak laser, but we are waiting on a 10w diode laser that claims to be able to cut through 5mm think plywood and thin metal.

So when we have that we should be able to cut a lot of stuff.
We are planning on using it prototype parts for the robot and for engraving and doing art projects.

This is the current state of our laser cutter/engraver. As long as it works it will have a cutting area of about 50cmx50cm.

At the moment it has some bits held on with clamps and we still need to make a better system for tensioning the belt for moving the x axis, but it works, at least in that it moves on three axes and moves consistently as far as we can tell without putting the laser on it and trying to repeat a complex cut a bunch of times.

#Engineering

@suetanvil@mastodon.technology we are going to build an enclosure around it that vents outside. And for the most part we are cutting wood so it isn't a huge deal yet. The plan is to make add some filters to the venting at some point, but we need to make it work first.

And I am certainly going to write up how to make this. I need to do that for a lot of things I have made, but this one is one that other people may have actual interest in.