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Sounds like it's already ahead of what some other people find when they open up theirs! Congratulations!
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May 31, 2016 22:04
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Yeah, that will do the trick. I have one of those little 500mW dealies and it burns lines into wood just fine. No idea what kind of cooling you might need for sustained use though.
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Jun 16, 2016 03:06
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Cheap and flat and 1/8" (nominal) = hardboard for sure. I've used so much of that stuff 
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Jun 29, 2016 18:44
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Also some "1/8" that is 3.06mm and some that is 3.46mm, which causes fun when the parts are designed to be able to slot into each other 
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Jun 30, 2016 00:01
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Rakins posted:Does anyone use a planer to solve that problem? Was looking for a cheap one on craigslist. I don't bother trying to "fix" it, especially not hardboard at $2 per 24x24 piece. I just measure which flavor of 1/8"  it is and use a job tweaked for it.It doesn't matter much with these little wood things I'm slotting together but generally speaking you should assume the thickness of the material when laser cutting can't be fully trusted. Thicknesses are all nominal. An extruded sheet of e.g. acrylic could be +/-10% in thickness (so I've read from people who measure these things) so when you make a design, design in a way that doesn't rely on the thickness of the material being precise -- or tweak it as needed. The laser can be accurate, the thickness of the poo poo you're cutting isn't always. Ponoko had a good bit about that in the part of this article that talks about the spinning top design: http://blog.ponoko.com/2016/01/04/how-to-make-laser-cut-interlocking-acrylic-designs/
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Jun 30, 2016 17:30
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Hey did the glowforge get made/implode or whatever yet? I look forward to happy peeps cutting acrylic and poo poo on their kitchen table 
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Jul 6, 2016 23:48
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MarcusSA posted:It has an air filter built in. I remember the ad showed happy people literally using it in their kitchen which would be cool and good so it loving better   Last anyone talked about it here was something vague about a roadblock of some kind in assembly but no idea whether that derailed anything or whether anything has happened.
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Jul 7, 2016 01:14
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Parts Kit posted:Would the 40 to 90w CO2 lasers be suitable for making laser pinholes in aluminum flashing? I believe it's about .015" thick, though it'll also be reflective as hell. What'd be ideal is if it could punch the pinhole and then cut out a square or circular shape around it. I don't think so, isn't CO2 laser the wrong wavelength to get absorbed by (and therefore cut) aluminum? If it was aluminum foil you might be able to punch a hole just on account of how little energy the foil can take, but 0.15" is way thicker than I'd be tempted to try. I think that Dibond stuff is way thinner than 0.15" and a CO2 laser machine can't cut that poo poo. It can engrave away the anodizing but doesn't do dick to the metal layer.
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Jul 7, 2016 01:18
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I realized a neat application I never considered before: cutting the foam from e.g. instrument cases for a custom fit.
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Aug 26, 2016 18:04
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I cut some multi-layer instrument cutouts and they are utterly precise compared to doing it by hand. Also it was less than a minute total and minimal handling/extra steps so overall pretty nice. Never used a cnc hot wire machine; how do you start and end cutting closed shapes with one? Do you have to manually thread the wire for each hole (assuming you don't want to go in/our via the sides) or does it work more like a jigsaw?
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Aug 27, 2016 17:21
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It hits a sweet spot for me, which is one-offs and small (<100) quantities. When someone's alternative is either cutting by hand (which always looks bush league as hell) or being a nuisance client at Waterjet & Plasma Ltd., or pick-and-pluck foam (time consuming and inexact), or using some conformal foam stuff from ULINE ($$$), then I look like a sweet spot, too
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Aug 28, 2016 06:16
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I made dumb poo poo! Here's a puzzle design I cut as a test. It's not a great execution but it's ridiculously satisfying to slide a piece in where it fits perfectly. 
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Sep 2, 2016 17:27
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Yeah, I learned the whole fractal generation thing (well, how to use the L-system extension in Inkscape anyway) just enough to get something made. Took me way too long and I only barely understand it as a result so no one ask me to explain it 
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Sep 2, 2016 18:52
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That's great! I like how the eye itself turned out.
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Sep 9, 2016 04:36
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poo poo, Christmas lights as a micro space heater never even occurred to me 
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Dec 22, 2016 01:55
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Decided to see what's up with Glowforge. Delayed again (now Q2-Q3 2017?) but I just read a Make magazine piece from end of December saying they got a test unit and it's worth the wait. Or will be. The dude does legit sound like he picked up on and set out to fix all the problems with current machines that makes them a pain in the rear end for people who are mainly interested in actually MAKING poo poo instead of teaching yourself to become a low level laser settings janitor & expert on crazy toolchains and fiddly poo poo. The Eyes Have It fucked around with this message at 12:54 on Jan 27, 2017 |
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Jan 27, 2017 12:50
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What's the camera do, exactly?
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May 25, 2017 18:23
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Holy poo poo I had no idea, and here I am using jigs and poo poo like a sucker!
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May 25, 2017 21:38
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That's weird, drag chain really shouldn't be causing the head to wobble. E: like shouldn't be obviously, but I mean shouldn't be as in "should not be able to"
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Jun 20, 2017 15:34
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That drag chain should be all  I know you said the links are stiff but is it also maybe over stuffed inside? An empty drag chain should be straight up limp and floppy (except for side to side and past the stop point). That being said, a head still really shouldn't be thrown off by the force of pulling along a recalcitrant drag chain. A stiff drag chain should just mean the motors work harder than they need to.
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Jun 22, 2017 23:26
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If the stuff you want to fry is too large to fit in the machine then it's not the right tool for your job. There are similar machines built on bigger xy gantry designs that you can fry your eyeballs with instead of the neje.
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Jul 8, 2017 18:09
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LaserWeb on the host software side, but the motion controller needs to be changed out for sure.
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Jul 16, 2017 04:55
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Couple things to mention: First of all, speed can be misreading. The results of 50mm/s and 300mm/s can look identical if the cut is a small object. With accelerating and deceleration of the head taken into account the head can't actually reach a high speed before it has to slow down again. A thing you can do is, if it exists, use the dashed line/perforation setting. You can get an effectively lower power level by playing with that. Not all laser controllers have a PPI setting.
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Jul 27, 2017 19:58
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What's their exhaust system like? I think I remember they have an integrated filter & showed happy people laser cutting poo poo in their kitchen carefree.
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Jul 31, 2017 18:17
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I have an 85W and I cut 1/4" at about 8-12mm/s if I remember right. That's pretty slow really.
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Nov 13, 2017 00:08
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I wonder what the problems are. Like is the hardware great but the software end is trouble, was it all just way harder than they expected, or what.
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Nov 28, 2017 18:54
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As soon as they played "what technically counts as shipped" games with their units I figured that was the end of that. No one who starts down that road comes back from it.
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Nov 28, 2017 18:57
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They did have some promising sounding stuff though, like how they from square one designed to fit certain dimensions and such to make shipping and logistics sensible and low cost. No one ever really considers details like that unless it isn't your first rodeo, and I thought it was a promising sign.
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Nov 28, 2017 19:13
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I remember an experiment someone did using a paste of plaster of paris with rubbing alcohol. Paint it onto the metal, then laser it, and it worked like cermark. Something about swapping a chromium atom between the uncured plaster and the metal causing the (permanent) color change probably just like cermark does. Haven't tried it myself but it's on my list.
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Jan 21, 2018 21:56
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I'm unsure how laser cutting the vinyl will avoid the need for weeding but maybe I'm misunderstanding the intent & it's more of a "if I can laser engrave then I don't need to gently caress with weeding and vinyl at all" You will need ventilation though, and eye protection.
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Mar 26, 2018 03:43
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You'll need a fan to pull the burning smells away and out a window or something, but mostly that's how they work. In practice you might end up needing to insert an extra step in the workflow where you export from your design program and import it into the laser cutter's software but not necessarily.
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Mar 27, 2018 08:26
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Speaking of laser software I tried installing LaserCut5.3 on a new Windows 10 machine and while it appears to install properly it won't run and complains about acge15.dll not found. If I manually copy that .dll over from my other windows 10 machine on which it works fine (laptop that was upgraded to win10, not a fresh install of it) then I get a bizarre dialog box that says "Right" and that's it, exits afterwards with an error. Google searching tells me gently caress all, other than one guy saying to turn off the driver/etc authentication in Win10 before installing and it'll work, but I did that and it changes nothing. I don't suppose one of you kind souls is both self-loathing enough to voluntarily use LaserCut5.3 *and* happens to have magic knowledge of how to make it work on Win10?
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Mar 27, 2018 08:30
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Be a James Bond level villain to bugs
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Apr 30, 2018 20:59
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| # ¿ May 13, 2024 13:28 |
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Sounds like your bed is out of square. Mine's "sweet spots" shift somewhat between summer and winter for example. Deal with it is one option
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Jun 30, 2018 19:17
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