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interested in making some smd Sudouinos once it's up and running. zero bandwidth for software development rn on top of limited coding skills myself.<br />
<p>On 2018-12-19 2:07 pm, Morgan Allen wrote:</p>
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<div>I just kept it to myself, stencils are better.</div>
<div>Also, did you sacrifice the 3d printer to accomplish this?</div>
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<div dir="ltr">On Tue, Dec 18, 2018 at 6:47 PM Jake <<a href="mailto:jake@spaz.org" rel="noreferrer">jake@spaz.org</a>> wrote:</div>
<blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left: 1px solid #cccccc; padding-left: 1ex;">seriously no one had anything to say about any of this?<br /><br /> On Wed, 5 Dec 2018, Jake wrote:<br /><br /> > last night at sudoroom i did some things to get solder paste flowing from the<br /> > TAZ 3 3d printer.<br /> ><br /> > i brought in a compact air compressor and adjusted its power switch to click<br /> > off around 100 PSI (since it was failing to reach its design pressure in a<br /> > reasonable amount of time and we only need like 40-50PSI for solder paste)<br /> ><br /> > i'm not sure if it's still working because it cut out apparently due to heat<br /> > the last time i was running it, but possibly just because of duty cycle. It<br /> > needs a fitting installed into the outlet to plumb it to the solenoid.<br /> > Fittings are in the box behind the printer and there's teflon tape in the<br /> > "tape" box on the shelves in sudoroom.<br /> ><br /> > i installed a three-port solenoid on the 3d printer which plugs in instead of<br /> > the extruder resistor / temperature sensor. It contains a 47KΩ resistor to<br /> > simulate a thermistor (to avoid a fault code) and it wires the nozzle heater<br /> > wires to the three-port solenoid (which is rated at 24VDC matching the<br /> > printer's power supply)<br /> ><br /> > I piped the 3-port solenoid to a syringe and mounted a syringe holder on the<br /> > print head assembly in a reasonable place. A syringe of solder paste is in <br /> > the<br /> > sudoroom fridge and can be used. Needles of various sizes are in the <br /> > cardboard<br /> > box behind the 3d printer.<br /> ><br /> > the air compressor's outlet needs to be plumbed to the flexible black hose<br /> > going to the 3-port solenoid. The solenoid needs to be mounted to the print<br /> > head (a twist-tie should work).<br /> ><br /> > unfortunately the 3D printer's firmware seems to be cycling power to the <br /> > nozzle<br /> > resistor when a temperature is selected, probably because of PID parameters, <br /> > so<br /> > we will have to look for a set of commands (or modified firmware) to activate<br /> > the solenoid properly during the dispensing process. This printer doesn't <br /> > seem<br /> > to have wires for a print head fan, which is how we connected the solenoid in<br /> > past implementations of this setup. There will need to be a script or<br /> > modification to rpt2pnp to issue the right commands for this setup.<br /> ><br /> > as a reminder the software for creating g-code to dispense solder paste from<br /> > the .rpt file output of a KiCAD circuitboard project is here:<br /> ><br /> > <a href="https://github.com/hzeller/rpt2paste" target="_blank" rel="noreferrer">https://github.com/hzeller/rpt2paste</a><br /> ><br /> > note that it's superseded by<br /> ><br /> > <a href="https://github.com/hzeller/rpt2pnp" target="_blank" rel="noreferrer">https://github.com/hzeller/rpt2pnp</a><br /> ><br /> > which may be newer. the latter was confirmed to (apparently) correctly <br /> > process<br /> > the .rpt file from the project we'll likely dispense solder paste onto first:<br /> ><br /> > <a href="https://github.com/fitzdoingprojects/big_battery" target="_blank" rel="noreferrer">https://github.com/fitzdoingprojects/big_battery</a><br /> ><br /> > i'll be gone for two weeks but if anyone wants to make progress on this <br /> > project<br /> > please write back and i'll help as much as i can.<br /> ><br /> > -jake_______________________________________________<br /> sudo-discuss mailing list<br /><a href="mailto:sudo-discuss@lists.sudoroom.org" rel="noreferrer">sudo-discuss@lists.sudoroom.org</a><br /><a href="https://sudoroom.org/lists/listinfo/sudo-discuss" target="_blank" rel="noreferrer">https://sudoroom.org/lists/listinfo/sudo-discuss</a></blockquote>
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<div class="pre" style="margin: 0; padding: 0; font-family: monospace">_______________________________________________<br /> sudo-discuss mailing list<br /><a href="mailto:sudo-discuss@lists.sudoroom.org" rel="noreferrer">sudo-discuss@lists.sudoroom.org</a><br /><a href="https://sudoroom.org/lists/listinfo/sudo-discuss" target="_blank" rel="noreferrer">https://sudoroom.org/lists/listinfo/sudo-discuss</a></div>
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