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General discussions. For specific printers / electronics / fabrication methods / softwares, please see other sections.
Re: Large-scale 3d printer - 10 years ago
Quotethe_digital_dentist How's the foam bed working for you? I can't be sure from the pix- are you printing on a raft? not bad at all, imagine turning on the printer, waiting 1/2 min. for the hot ends to come to temperature, then printing. used the paper covered foam first, bought a 4x8 sheet, cut it in two, but peeling off the paper was a nightmare. however, the paper covered foam gives a smooby val c. - General
Re: Large-scale 3d printer - 10 years ago
..printing parts for my printer while calibrating and learning the machine. next to the printed part, in this case a link arm for the wiring, one can see the first attempt.by val c. - General
Re: Large-scale 3d printer - 10 years ago
QuoteLymphomaniac1 I saw a commercial one on television recently large enough to make a chair. It took over a week to make the chair. I believe you are talking about 3dp printers. they go 1x1x0.5 meters printing envelope. regardless, there's ways to improve that, by using a larger nozzle. i'm planning to use a 1.2 mm nozzle soon enough, for the time being, the largest nozzle I have is 0.8 mm.by val c. - General
Re: Large-scale 3d printer - 10 years ago
QuoteJamesK It lives! Congratulations. Those are the most under-stated postings imaginable for bringing this beast to life Those look like tiny layers for a printer that size. Getting a huge printer to print small parts as accurately as a small printer is always going to be a stretch. Fling a 1mm nozzle on there, print something a meter long and make us all jealous! i used a 0.35 mm nozzle. thby val c. - General
Re: Large-scale 3d printer - 10 years ago
as promised, here's a couple of pics. not the brightest surface, but working on it. as for dimensional precision, it stayed within 0.2 mm.by val c. - General
Re: Large-scale 3d printer - 10 years ago
started the first tests with pla. will post pics soon.by val c. - General
Re: 4 Z-Axis Steppers for a large build platform - 10 years ago
QuoteShadowRam Has anyone tried or has examples of a print bed that utilizes 4-stepper motors? My custom repstrap has a fairly large print area, and while currently I'm only using a small portion of it, with a smaller bed, I'm planning ahead as to how I'm going to achieve the larger bed. Size is approximately 600mmx300mm I was thinking 4 Steppers in each corner, where I could fine tune the leby val c. - Mechanics
Re: Large-scale 3d printer - 10 years ago
Quoteepicepee Excellent! One minor trick that has helped my bed heat faster is covering the unused portions with aluminum foil, kapton-taped down. It reflects the heat that might otherwise radiate away. It won't help if you're using the whole bed, of course, but if you're only using a bit it can make a huge difference in terms of heating speed and power required to hold temperature. i did cby val c. - General
Re: Large-scale 3d printer - 10 years ago
a few days back, i ran the first heating tests. hooked up the heating pad directly to the grid, 110 volts, without using the ss relays yet that is. the pad has four independent quadrants, which were hooked up in series by pairs, then the pairs hooked up in parallel, then everything went directly into the 110 plug. estimated power consumption is 500 watt, out of the total 4400 which the pad can taby val c. - General
Re: Large-scale 3d printer - 10 years ago
Quotestephenrc Gibbs built a large wooden boat by hand in his basement. The only access seen in the show was a regular door and a flight of stairs. No door big enough was ever shown and Gibbs just smiles when asked how he got it out of there. Also, the writers for the show won't say how either. sounds like x files.by val c. - General
Re: Large-scale 3d printer - 10 years ago
Quotestephenrc Quotethe_digital_dentist How are you going to get the machine out of that room? The same way Gibbs got the boat out of his basement on NCIS. :-) you lost me here. i don't watch ncis.by val c. - General
Re: Large-scale 3d printer - 10 years ago
QuoteJamesK I don't think it's the sort of machine you throw in the back of the car to take to the makerspace. no, it's not meant to compete with prusas and mendels at them makerfairs.by val c. - General
Re: Large-scale 3d printer - 10 years ago
it comes apart like you peel a banana. that, or tearing a big hole in the front wall.by val c. - General
Re: Large-scale 3d printer - 10 years ago
after a break, back in business. thermistor and glass installed, remains to hook up the silicone pad and then leveling.by val c. - General
Re: Large-scale 3d printer - 10 years ago
QuoteJamesK What does the glass weigh in at? What's your levelling mechanism, or are you going to forgo levelling, mount the bed solidly to the carriage so that it maintains flatness and use ABL to deal with any level issues? Ah, excuse me while I go and write that in another thread will use zprobe, since the machine is powered by smoothieboard.by val c. - General
Re: Large-scale 3d printer - 10 years ago
after a hard day's work.. soon, this sleeping sucker will pe put thru the pacesby val c. - General
Re: Large-scale 3d printer - 10 years ago
today, the glass is coming, brought by a buddy of mine. beer is already cold, can't wait to see how the glass sits on the bed. will post pictures soon, hopefully tonight if sober.by val c. - General
Re: Slic3r not dual extruding properly in 1.5.6 ? - 10 years ago
Quoterepetier This is related to a bug fixed in 1.5.6. Before the host did not send selected extruder id as selected in object placement correctly. Therefore slic3r used it's defaults. Now these extruder settings get send correctly and slic3r uses the selected extruder for the object. This overrides default settings. i have a similar problem, i have two extruders hooked up to my smoothieboard, bby val c. - Repetier
Re: Slic3r not dual extruding properly in 1.5.6 ? - 10 years ago
sorry, double post.by val c. - Repetier
Re: Large-scale 3d printer - 10 years ago
Quoten8bot I want to see more. I hope this works out well for you. What size nozzle are you running off the gate? so far, all worked out ok. will be using 0.4 and 0.8 mm nozzles for the purpose of testing.by val c. - General
Re: Large-scale 3d printer - 10 years ago
..and a short video of the machine in operation.by val c. - General
Re: Large-scale 3d printer - 10 years ago
moving on, the extruder is wired and connected to the smoothieboard. time for some tests.by val c. - General
Re: Large-scale 3d printer - 10 years ago
some more pics from hooking up all things extruders.. extruder steppers hooked up: extruders fans hooked up: connection to adjacent cable carrier (work in progress): cable carrier at the extruder end (work in progress): remaining: to hook up the hot end heaters and temperature probes, and to zap strap all the wires, make them look nicer.. hopefully the glass will be here next week.by val c. - General
Re: Large-scale 3d printer - 10 years ago
a quick video of the first cold run tests. got to hook up the extruder and heated bed, and get a piece of glass for the heated bed, then it's time for testing and fine tuning.by val c. - General
Re: Large-scale 3d printer - 10 years ago
it was a good day today. done installing and tensioning the belts for the two x axis. tomorrow it's time for the two y axis, then tie up some loose ends (end stops, etc.) then it's time to connect the extruder and heated pad to the smoothieboard, after which it's time for glass and testing. hope to be ready for testing by end of february. last but not least, the re-designed front plate of the pby val c. - General
Re: Large-scale 3d printer - 10 years ago
installed yesterday one of the two reinforcing rails, pictures attached. monday will install the other one, then it's time to install and tension the belts.by val c. - General
Re: Large-scale 3d printer - 10 years ago
Quotethe_digital_dentist What does that mean? There are plenty of large scale printers out there, Gigabot, for example, and they're being used to make large prints all the time. Do you mean there are no large scale prints posted on Thingiverse or Youmagine? Who cares? Anyone with the resources and skills to build a large scale printer will probably be designing their own stuff anyway. Pleaby val c. - General
Re: Large-scale 3d printer - 10 years ago
Quotekarabas QuoteVDX ... there are several cartesian- and delta-based frames with up to 12 meter building height for 3D-printing architectural parts nad complete houses out from concrete. In future this will get common and even bigger - especially in Japan and China they're fond of "printed houses" ... and NASA too has plans to install 3D-printers on the moon or on Mars to 'print' habitates ..by val c. - General
Re: Large-scale 3d printer - 10 years ago
Quotedavew_tx Any updates on the beast? and, by the way, 'the beast' is already trademarked.by val c. - General