Quotedmould I should think that a trial cutter could be made simply by duct-taping a laser to the hotend and unplugging the Z-motor and extruder motor (with power off!). Connect the laser so that it is controlled by the fan0 output, cover the bed with a mat that can take the laser burn-through (maybe the glass will be OK), manually adjust the Z screw so the laser is focussed on the material to bby Radian - Ormerod
Quotedroftarts Quoteshadow651I do find the lack of open source laser stuff bizarre. For the most part laser cutters/engravers hardware is a 3D printer without the Z axis and extruder drive, and a laser in place of the nozzle. Since the duet supports this I wonder how much work it would be to have a laser cutter head that could be swapped out for the hot end.... Me too! About the only one I can fby Radian - Ormerod
Quotedc42 I'll change the code in my fork so that if the Move module runs out of moves, and M571 has been used to turn the fan output on, the fan output is turned off again. Excellent, that's very good of you. It seems to be a sensible precaution... especially when testing things "by hand" Noddy question: I'm assuming that the extruder drive rate is matched to the velocity of the combined XY moby Radian - Ormerod
Quotezombiepantslol I've just looked at the code (of my fork) and it looks like the fan value is toggled only when a new move starts. This means you must either send a (valid) non-extrusion move or M107 to turn it off again. So it does! I've got to think about how that affects things - I can't see a print (cut) move stopping at the end and just sitting there so I guess it will be OK. There's alwby Radian - Ormerod
I just tried disconnecting from the Web Control and issued commands over USB command line. It still behaves the same. Easily replicated, send... (heat first if plastic will be extruded of course) M106 S0 ;fan off M571 S1.0 ;fan 100% on extruder moves G1 E5 F200 ;extrude The Fan comes on with the extrusion move but then stays on for me.by Radian - Ormerod
OK, so I was using your previous firmware 1.04e but now I've loaded 1.09a and still can't get this to work as you described it... Using Duet Web Control 1.06, the best way I can describe it is that the Fan0 drive "latches" at the highest setting given. So, for instance: if the Fan control slider is set to 100% Fan0 stays fully on. M571 S0 to S1 have no influence when the extruder is run.if theby Radian - Ormerod
I expected the "output" for M571 to be the Fan0 output but it's not switching... QuoteM571 This turns an output on whenever extrusion is being done, and turns it off when the extrusion is finished. The output could control a fan or a stirrer or anything else that needs to work just when extrusion is happening. The S parameter sets the value of the PWM to the output. 0.0 is off; 1.0 is fully on.by Radian - Ormerod
Quotedc42 The Duet firmware already has an option to drive the cooling fan output whenever extrusion is taking place. So you could use the extrusion commands in the gcode to turn the cutter on/off. See . Oh that's brilliant! - I had wondered about treating the extruder as the laser control when contemplating how slic3r might help generate the Gcodes: If I create a 2D design in OpenSCAD using cirby Radian - Ormerod
OK, so I'm posting this topic in the Ormerod forums as this is where the greatest concentration of expertise in the Duet lives (as the suggested in the think3dprint3d.com blog) . I have here one of those cheapo Chinese 40Watt Laser Engravers that came with virtually unusable proprietary software/hardware combo. I soon ditched all that for some Pololu stepper drivers wired-up via a DB25 to a PC rby Radian - Ormerod
Quoterjmusto I reckon I am seeing the same problem with a new Ormerod 2. After a few prints, the nozzle sits a fraction too low and smears the extrusion rather than leaving a neat bead of filament. Recalibrating the Z Probe sorts it for a while, then the same thing happens. Think I need one of your boards too DC42! Ralph This sounds like it could be the bed warping upwards as it warms throughby Radian - Ormerod
QuotePRZ For non contact sensors, M18 is the most common diameter, however, it is easy to find inductive in 12mm diameter at low cost. For much higher cost, it also exists 8mm diameter sensors. Capacitive sensors, however, are more difficult to find in 12 mm diameter, but they exist in flat package. Inductive sensor, direct from china, 2.3 GBP, postage paid ... That may take some time, however..by Radian - Fisher
I've been thinking about how I could use an IR beam breaker system placed on my hot-end electronics panel to detect when filament has gone crazy and stop the print so I have no fear about leaving the printer unattended. I already have the heater block thermistor connected to my microcontroller so I'm assuming if I drive the input to the A/D to Vdd the duet firmware will throw an error and stop tby Radian - Ormerod
I tried almost all sizes in steps of 0.05 around there to see the effect. It seems pretty strange. For example, at 0.6 the roof is started with long parallel runs that wouldn't bridge: While at 0.5, despite the odd angle, it might bridge OK but it's still not sat on the wall: Edit: I just changed the Opening Post to show the real roof layer given by slic3r's default extrusion width. Somehow Iby Radian - Ormerod
Quotedc42 Regarding the Lego brick which has two perimeters but no infill between them, that happens when the thickness of the wall is less then three times the extrusion width. I had this problem when I tried to build a 1.5mm thick wall using the default extrusion width - which I think is about 0.6mm for a 0.5mm nozzle. Increasing the wall thickness to 1.8mm solved the problem. Specifying 0.5mmby Radian - Ormerod
What can I do to get Slic3r to produce gcode that connects infill to the perimeter? I've been tweaking the Infill/perimeter overlap parameter (Print settings>Advanced) with no success. Here's an example of what happens with : The lower layers (lego brick style) get to here: Then there's a bridged layer to the perimiter from here on up: In pactice the nozzle appears to stop short of the pby Radian - Ormerod
A quick glance through the Ormerod forums shows just what a "repeat offender" Z probing is. +1 for getting RRP to source David's dual IR. The mini should be economically viable in Qty. >250 I would think.by Radian - Ormerod
£199 +VAT is going to attract some attention... and you say it has a Duet controller? 6 rails & linear bearings, 4 motors... doesn't seem to be priced along Ormerod lines. If nothing else, I can see it being a cost-effective starter kit ripe for upgrading to get a bigger build area.by Radian - Fisher
Quoteauser QuoteRadian ..... Note hasn't got enough memory for it. I fixed just that problem by removing some 500 megs of logs from a notes /data/log directory. Sadly this requires rooting the device. Som links that may help Rootin an original note: Deleting logs second answer here: hth Brilliant - thanks! Second answer contained this method to free up some memory which made enough room for Chby Radian - Ormerod
Amazing isn't it shadow651. Tech stuff becomes a "Legacy item" while you're unboxing it these daysby Radian - Ormerod
The problem isn't when using Chrome but the stock browser that came with the devices I have. I don't know if Chrome is the standard browser these days, but it won't install on my tablet and my Galaxy Note hasn't got enough memory for it. Ah well.by Radian - Ormerod
I'm just too clumsy to have any kind of delicate surface (even kapton LOL) that's why I wanted a way to print on glass which can take a fair amount of abuse. I started out with a wipe of Bottle Green ginger and lemongrass concentrate that I'd been swigging (diluted of course) and noticed how sticky it was around the bottle top. This worked really well but remained sticky to the touch so collecteby Radian - Ormerod
Quotedroftarts On the subject of horizontal holes, and dealing with an overhang, the other option is to go up at an angle to a point. It's what the original reprap logo is supposed to show, rather than a 'drop' of melted filament, as is often assumed! Well I never. That has to be the first time a company logo has been inspired by a shortcoming of the technology it employs. I'm only joking - it'sby Radian - Ormerod
I'm sorry to say that all the "bargain" power supplies appear to be a big risk as you've found out. Most budget ATX supplies are just as problematical because the 12V is not welll regulated. Have you considered buying a lab. bench supply like this one for example? I'm using one of these after getting fed up with 11V not heating the bed and hot-end decently. It goes up to 15V which may be a bitby Radian - Ormerod
I love sugar. I'm printing PLA on glass with a wipe over of sugar dissolved in water. Lots of sugar, not so much water. Just enough to make a syrup. The neat thing is that once set with a little heat, it's not sticky but gives the glass a matt glaze that seems to hold onto the plastic like crazy. To refresh between prints it's enough just to wipe over with more syrup. Cleanup with water. Coulby Radian - Ormerod
Quotedmould ...What should also work but I have not seen tried is to direct a stream of hot air downwards from above onto an overhang, which should either lessen the curl-up or cause it to curl down instead (which like a bridge tends to be self-healing). I may try using a hot-air gun on a low heat setting to baby my next print that has an overhang and see whether it works. The air should not beby Radian - Ormerod
Has anyone tried accessing Duet Web Control 1.06 from an Android smartphone/tablet? I tried a Samsung Galaxy note, a galaxy tablet and an ancient Archos tablet. So cool to be able to do this but all three showed exactly the same problem rendering the Head Movement controls: I know the browsers in these things are pretty basic but so much renders correctly I was just curious to know if it was pby Radian - Ormerod
Thanks for the tip Dave. The obvious question is why a wide bridge across the rectangular cutout would be more successful than the attempt at a steep overhang. However, the cumulative curling-up that seems to result from too steep an overhang may be the answer as it can get into a right mess!by Radian - Ormerod
QuoteDarathy i belive you have supports enabled in slic3r, it will fill the holes to make easyer bridging on top of the hole and keep dimensions. Thanks, yes, support was enabled but I didn't expect the solid vertical beams outside the holes. It's been a total nightmare to remove them. Slic3r tells me I'm running the latest when I check for updates from the help menu but it looks like that may bby Radian - Ormerod
Ii used Slic3r 1.0.0RC2 to slice this One-piece Ormerod bed support. and instead of looking like the preview: It printed like this: Wherever there was a hole as arrowed, a vertical bar covers it and drops down from the hole all the way to the bed. Crazy. The large radius hole for the front bearing is walled-off completely. Does anyone know what's making this happen?by Radian - Ormerod
Quotedmould Extending the tab need not lose you any table - just set the X trigger position as being X=10 (or whatever) in the X homing file macro. Dave Unfortunately it's still a mechanical clearance - I didn't describe it too well when I talked about the carriage hitting the "shoulder". This should show you the restricted travel between the two parts: I've now modded the sensor tab to pullby Radian - Ormerod