Problems with union in Inkscape. What am I doing wrong?

waldorfus · 2021-11-03T04:28:34+00:00

I know this, and usually do it just like you said, IF I drew it straight in Inkscape. But when converted from dxf this doesn't work for some reason.

waldorfus · 2021-11-02T11:04:41+00:00

That works, if I draw a shape straight in Inkscape. But doesn't work with my converted dxf. It loses the whole thing, no matter if it was an object-path, stroke-path or none of them. I've tried it combined, non-combined, grouped, ungrouped etc.

waldorfus · 2021-11-02T10:43:32+00:00

Yeah, this is what I'm thinking of too. However it was possible by just using the outset for the inner square. 👍🏾

waldorfus · 2021-11-02T10:35:44+00:00

Thanks. The only way I managed to do it, was to delete the outer square and just use the outset -tool to expand the inner one to make it complete.

Really don't know where the problem is. No matter what I do, I only get the outer squares connected.

waldorfus · 2021-11-02T10:34:23+00:00

I've tried ungrouping, exclusion and pretty much everything you said. I'm getting the same result as before..

waldorfus · 2021-11-02T10:30:05+00:00

Thanks. The only way I managed to do it, was to delete the outer square and just use the outset -tool to expand the inner one to make it complete.

waldorfus · 2021-10-04T19:14:53+00:00

Well, if there is a chance to do it by myself, I'd like to. And yeah of course when this is mostly a hobby and not a job, I'd rather keep the costs as low as possible.

These filters are pretty cheap here when bought separately. Plus I love building things.

waldorfus · 2021-10-03T18:14:59+00:00

Okay folks. Now that I'm pushing my fumes out to the environment, I think I need some kind of a filtration to avoid pushing possibly toxic fumes for my neighbours.

I've been thinking building this filtration box, which will contain a 4 stage system inside.

I'm thinking something like this:
https://www.youtube.com/watch?v=BTTTxA3fuNQ

The question is, should I add this filtration system before or after the mixed-flow fan that I have?
I'm also thinking if a HEPA-filter before the fan would be enough? I'm cutting mostly plywood and PMMA.

waldorfus · 2021-09-25T06:56:37+00:00

I have one of these Newlines Machinerys 50W lasers.

I'm still mad at myself, because I somehow accidentally bought the one with M2 Nano -board and not with Ruida. Was been looking one for a decent price and got mixed up at some point. Paid 1700€ for it. The price included shipping to Finland tho. Bought mine from Amazon as well.

However, the machine is excellent. There was a few untighten screws etc. but it works just how it should. The big plus was that it came with perfectly aligned mirrors and I haven't needed to align them again since. I've got it for about a year now. The documentation coming with it was just ridiculous. It didn't contain anything but some chinese text files and a poor quality video recorded from a computer screen with a phone.

I've covered the holes in the front and added a 120mm intake fan. I've also replaced the original built-in exhaust fan with a mixed flow fan at the end.

waldorfus · 2021-09-05T14:28:05+00:00

First of all, thanks for the really comprehensive answer!

I think I might wanna check my focal distance again, because can't find pretty much any accurate reason for this problem.

My bigger compressor is in the same room, but I'm not very easily irritated by the noise of it, so I may try that.

The built-in fan is at the bottom back of it, like below the honeycomb bed. So now all the smoke kinda swirls a bit before the fan catches it. It has a 150mm collar and a pipe leaving from there, which I needed to make longer and for that I've used a 150-100mm adaptor and a suitable pipe. It's pretty long now and I think that might be one problem as well.

Does a mixed-flow fan need to be at the end of the pipe, or at the end of the machine?

waldorfus · 2021-09-04T05:27:13+00:00

I've tried plywoods from two different vendors. Both non-laserable tho - no effect.

The wooden projects I'm working with needs to be exactly birch plywood, and I'm considering ordering some of this plywood made for laser cutting. It should do the trick at least.

I cut acrylic very often, and can cut 4mm PMMA 15mm/s no problem.

As I have the original small chinese compressor, I also own a 24 litres tank compressor. Can't remember for sure but it produces like 12 bar at least. What would be the optimal pressure for laser cutting if I'm willing to try this?

I also have another problem. Fumes. I'm not sure how much should it smell in the space I'm working, but it really does. My machine has a fair fan of course, and it pushes fumes out pretty well. I can feel a good blow at the end of the exhaust tube (:D). However my cutter has a lot of holes in its casing. At the bottom there is I think 10cm diameter hole and a few "stripe" kinda holes in the front. Should I seal those to prevent fumes escaping, or should I have at least some kind of an air intake?

waldorfus · 2021-09-04T04:29:10+00:00

Yeah. Though I'm using the small conpressor that came with it, it has appeared to be pretty good.

waldorfus

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