So in the end I found a better comfort with the green ones. However they protect so well that you don't see much around and you develop a higher sensitivity (your pupil extends). Red ones are easily found on the net and protect much better. The glasses provided by default do not offer a very good protection to be honest, but you can actually watch a piece being made with them if you don't stare too long. And take care to work a very bright room, this will further protect you by having your pupil almost closed, compared to being wide open when working at night. I found that working on the device one evening despite wearing the glasses was straining for my eyes. Second because the light point is so small and concentrated that you don't feel blinded by staring at it, but it destroys your eyes. First because you never know if you'll get a reflection. Then I made a support using 2 aluminum corners to serve as a support for the glass, thinking it could also serve as a ruler, but it immediately became much more complicated to align stuff on this because we'd lose some degrees of freedom: I initially used a glass plate on top of a thermal protection for ovens. This really is not anything to worry about at all, everyone will find their own solution to this.Ī support is missing, and you have to put something riskless under the engraver. But it can happen, I'd say in 2-3% of the operations, that you hear your motors "jump" and miss a step because this spiral got trapped somewhere. I found that making it arrive by the right of the motor and using the laser's cable to hold it in place is what gives the best results. And the plastic spiral to hold the X motor and the laser cable together isn't completely smooth due to being rolled around the cables, and tends to occasionally force either against the plastic part of the controller, or against the X motor's fixation. It doesn't happen often but when it does it ruins what you were doing. The one on the sides is far from being perfect, with the cable falling under its weight and occasionally getting stuck between the plastic block and the frame. I don't like the cable passing method at all. There are no tension areas and the axis move perfectly parallel to the frame. I had expected something a bit flexible or shaky but no, it's extremely rigid, everything holds well in place and moves smoothly. I was really impressed by the build quality, especially for the price. It's really nice when you see that such a device can be assemble by kids, it means the instructions are pretty clear and universal! I was impressed by the result, they even managed to properly tighten the wheels on the bars so that the motors could move smoothly without shaking. They're 8 and 11, don't read English, and it took them two hours to assemble everything with no help (actually yes, they asked me to tighten the screws of the controller board as they were afraid to risk to damage it). On the next week-end, they came and I opened a browser on the wiki with the instructions and let them do the work. My friend Benoit's kids were impatient to see it so I thought it could make a good week-end activity to let them assemble it, thus I waited for the next week-end and verified I had everything available. But actually the photos are well detailed and almost everything is pretty straightforward. The assembly instructions are a bit scarce, they're made of series of photographs with almost no text in EleksMaker's wiki. There's no ground plate in it so you have to plan putting something to protect your table. I received it in a quite small parcel, the kit is made of lots of small pieces and long, thin bars. At this price (around 200 EUR then, it went down further since), I didn't risk much so I decided to order it. It turns out that I've been imagining for a very long time that I could possibly make PCBs either by directly printing on presensitized copper boards, or by painting a board in black and then burning the paint. Clicking on them by curiosity revealed this appealing laser engraver that made me wonder whether I'd really need it. I was having a look at a review for a new single board computer (I don't remember which one) with a link to the Banggood site, and in the suggestions I saw some inexpensive laser modules. It all started while following some links.
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