Okay, Viktor doesn't have any useful advice. Anyone know anything about constant current power supplies?by av8r1 - Laser Cutter Working Group
Browsing that "dtr" site, these 2.5 watt lasers are reaching dangerously close in price to a 40 watt CO2 system from LightObject. I'm looking to get this done for around E3Dv6 money, So what makes a good vs crappy diode driver? What do I look for?by av8r1 - Laser Cutter Working Group
These.by av8r1 - Laser Cutter Working Group
I have access to some CO2 lasers at my makerspace, but I can only make the trip in 2 days a week. I'd like to have a little machine myself for my little side business manufacturing wooden key fobs, and I think a little 2.5W blue laser will do the job. Banggood has some for ~$70 American, and I haven't seen a definitive yea or nay on these. Thoughts? They have whole engraver kits available asby av8r1 - Laser Cutter Working Group
We use undiluted white vinegar. Works amazingly well.by av8r1 - Laser Cutter Working Group
Hmm, didn't realize the browser would be the limiting factor.by av8r1 - Duet
Could a future version of RepRapFirmware allow editing G-Code files the same way as the system files an macros? Sometimes you've just got to comment out a G29 or change a temperature number real quick, and it would be more convenient to just click edit and change the number, rather than downloading, editing and re-uploading, or reslicing the part from scratch.by av8r1 - Duet
Got a cartesian machine. That's what I printed the Delta's parts on. A nice, reliable (if slow) Folger 2020 i3.by av8r1 - Delta Machines
Scrap the router table. I don't think the motors are beefy enough for heavy loads.by av8r1 - Delta Machines
Should I make a CNC router table or a CoreXY printer with the bits?by av8r1 - Delta Machines
That abomination of a Kossel of mine is printing low in the back-left "corner" of the bed. Why? Never mind. I'm removing it from service. I'm done with Deltas.by av8r1 - Delta Machines
From what I understand, a closed loop movement system would fix any calibration issues for a cartesian machine. It can run a self-calibration just by running the axes back and forth a time or two at startup or something. That would eliminate the need for the end user to print and measure. For something like a cartesian, I think you could trust the build of the machine to be square. A buddy ofby av8r1 - General
How available are the components to do a closed loop system?by av8r1 - General
I'm sure hobbyists and tinkerers are quite happy with the status quo. We here are inherently interested in 3D printing for its own sake, so we design and build 3D printers for tinkering. But in doing so, we're dragging those home users who want to just print stuff and never open the cover along for the ride. I've got a high school student building an FT-5 because he's a big Fallout fan and wanby av8r1 - General
As for an effector piezo sensor and such--I think I'll let you boffins do a bit more R&D before I jump on board. I use my machines for work, so tried and true beats new and cool. My delta is in there printing a copy of a motorcycle part for a customer as I type. Edit: Clearlynotstefan, if I can't calibrate the printer, what good do all those neat features do me? "I can upload G-code fastby av8r1 - General
I appreciate your advice, David, and I'll read those links. "Correctness by construction" is interesting. Let the record show I owe you a pint for putting up with my crap. But I'm not passive aggressively complaining in another subforum here, I genuinely want to brainstorm ways to make 3D printers more accessible and easier to use on a day-to-day basis, and used my latest frustrations as a casby av8r1 - General
Yeah I wouldn't have had any notion that you could take a power drill to a piezo disc and not kill it. I usually think of them as rather delicate. I'll monitor that development, though at the moment I'm not in the market for a Z-probe; trying to get rid of one in fact.by av8r1 - General
I know it'll take effort. Once upon a time, it was really hard to come by a quality reliable print head because machining such a thing (particularly the nozzle orifice) takes a pretty skilled machinist. Now you can grab an E3D hot end off the shelf, fully assembled for about $80. You want to talk turnkey machines, Let me tell you about a local printer manufacturer, Fusion3. Their first producby av8r1 - General
So I've recently had a misadventure getting RepRapFirmware to work. Frustration set in, I verbally abused a man who was trying to help me, and it was pointed out to me that 3D printers aren't to be expected to "just work." Says who? My RRF misadventure ended when I got utterly sick of trying to manually adjust for the automatic calibration system. I gave up when entering z-probe trigger heighby av8r1 - General
I'll grant you that. I'll be the first to admit that I am a festering asshole, one with nearly no patience. Some of it's learned behavior, some of it is lack of mental health, most of it is just plain old being a bad person. I know it and I'll own it.by av8r1 - Duet
@masterjuggler I'm happy for your success and hope you enjoy it very much. I am aware of the user unfriendliness of 3D printers. I've built seven of them, four of which are in public use at a local maker space. I've spent those hundreds of hours, often with the goal of making the machines accurate and reliable even for those who aren't intimately familiar with how they work. There has been mucby av8r1 - Duet
I got it working. Here's what I did to solve the problem: I put the Duet back in its bubble wrap and reinstalled my RAMPS stack. I've emailed Filastruder for a refund, I give 47:1 odds they don't take it back. If they refuse a refund, I will post it for sale for $150 obo including the IR probe.by av8r1 - Duet
These products--Duet WiFi, RepRapFirmware and the Mini IR Sensor, were represented as able to automatically calibrate a Delta printer. I've spent a couple days trying to get it to do so. I feel I have been defrauded. This doesn't actually work. I'm going to contact Filastruder and ask for my money back.by av8r1 - Duet
Okay. I've done Z-probe repeatability tests at all my calibration points. They're all within a few .001mm I've put these in as h values in bed.g per the duet3d wiki. It still prints wrong. I'm trying to print a large round disc to get it printing flat across the whole bed surface. If I see it's tight in one place, say near the back tower, I adjust the h value for that probe point, and it mesby av8r1 - Duet
My web interface does not ask if I want to restart the Duet upon saving changes to config.g. I've upgraded the firmware that came on the board (to 1.17e) but not the web interface, I may need to do that. I figured the Reset button would do the job, but it's perilously close to the Erase button. I am one of Murphy's chosen people, so I dare not risk it. M999 it is. Copy, G-codes that change sby av8r1 - Duet
For the record, do I have to power cycle the board to make changes to config.g take effect?by av8r1 - Duet
My cartesian machine has no Z-probe, a RAMPS stack, and it works just fine by adjusting bed screws. I tried using your IR z-probe and it did run the Z-screws up and down, just...it either wouldn't adjust enough, so it would print diagonal to the bed, or it would print too high. Never could get it to work, and I will never entertain the idea of a Z-probe on a cartesian printer ever again. Comeby av8r1 - Duet
Remember kids, if it's more work to get an automatic system to work than doing it manually, it's not automatic.by av8r1 - Duet
Why is it that I can spend ten trillion dollars on a circuit board and the automatic features it's supposed to have are just as worthless as a $12 RAMPS stack? Auto calibration, auto level, they're still more work than twiddling damned bed screws.by av8r1 - Duet