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(Contents under pressure) -> http://objects.reprap.org/wiki/Paste_Extrusion
Re: live cd and NVIDIA graphics card - 16 years ago
well in fact: NOPE! True you can boot off of the cd/dvd in low resolution (800x600) but the repraphost doesn't allow such low resolution. It shows up but neither you can see nor edit some of the settings because the window is too big to be shown completely. And unfortunately it is not ment to be scrollable. So your nipped in the lower back 'sidby sid - RepRap Host
Re: Material zum extrudieren - 16 years ago
Testweise kannst Du es mit dem Schweissdraht von steinel versuchen, die haben hart und weich PVC, PP, L- und HDPE und natby sid - Altes Forum
Re: Yet another silly idea - 16 years ago
Well, The movement of the original Mountingplate that was moved by the motor was about 34cm so just a bit more than needed than needed for a standard darvin for example. The wheel has a diameter of about 40mm and is capable of holding six windings and because it's about (Pi*40) 125mm per winding it'll hold up to 750mm of wire. I think that is more than enough The wheel itself is about 14mm widby sid - Mechanics
Re: Fab@Home unassembled kit - 16 years ago
indeed a good place for a fine tool! Hopefully they make some useful thinks for the children with it. 'sidby sid - For Sale
Re: Yet another silly idea - 16 years ago
Seen that before But what I thought of is even simpler than that. The motors don't have to be connected to the cartesian at all (except by the bowden cables of course) I'll make a quick sketch... (ten min later) Sorry quick and dirty Just think of how your bicyclebrakes work. 'sid edit pictureby sid - Mechanics
Re: Motor-couplings - 16 years ago
Well... what can I say? AMAZING! I'd love to have some of those gerwah couplings.. shiny, colourful... mjammm 'sidby sid - Mechanics
Re: Laser questions for Viktor - 16 years ago
I don't think that cutting balsa with a diode laser is possible at all. Afair Viktor had some CO2 Laser... I can't remember really. 'sidby sid - Laser Cutter Working Group
Re: Teile f - 16 years ago
Das Hauptproblem mit den Nema23 wird sein, dass , wenn sie mitverschickt werden, das Paket schnellby sid - Altes Forum
Re: Teile f - 16 years ago
Hi Viktor, sei so gut und schau mal nach den Nema17 Motoren, ob da drei identische bei sind (am liebsten Bipolare) mit 1,8by sid - Altes Forum
Re: Baby sized reprap - 16 years ago
Okay, so thats: A bunch of new hard soft and firmware connect the brr to the pc, load a stl for testing and calibration disconnect the brr and select an item from the sd card and print it. I don't get it? What's simpler with that?? Still: I'd love to see a display on the RepRap, I love to have some sort of removeable media with the RepRap (SD cards, memorysticks and such) But not on the babyrepby sid - General
Re: Cartbot with all three axes controlling the toolhead - why not? - 16 years ago
starting from the end QuoteWell, the Z motor is mounted on the top of the bottom platform, with the shaft pointing up. Oh.. okay Then there will be a gap between the lowest point of the leadscrew and the carriage for the toolhead. thinking of the dimensions of my motors and my leadscrews that'll be about 15cm (nema 23, ~8cm long... 4cm shaft 3.5 cm coupling) that's what you'll loose on the traveby sid - Mechanics
Re: Cartbot with all three axes controlling the toolhead - why not? - 16 years ago
Joshua Merchant Wrote: ------------------------------------------------------- > sid Wrote: > -------------------------------------------------- > ----- > > my upcoming cartbot > Nice. > thank you that's my... let me count.. third try to do it this wy, originally to build a cnc milling machine, but that thing just isn't stiff enough (in the desired size (300x400x100 movemenby sid - Mechanics
Re: Cartbot with all three axes controlling the toolhead - why not? - 16 years ago
my upcoming cartbot still without leadscrews (I guess you'll figure where they'll go The two leadscews for the x-Axis are going to be connected by a timing belt. Oh, it'll have a baseplate that I didn't include in the picture, just a plate, nothing special 'sidby sid - Mechanics
Re: Why the need for an IC? - 16 years ago
Just because I've just read realtime operating system: check out very small, very nice (very free for personal use ) Now we need to get the repraphost in pure assembler... anyone? 'sidby sid - General
Re: Baby sized reprap - 16 years ago
Is it AVR-DOS you're talking about? then the library has 4000 lines of code.. 'sid 1 file handle requires 1200 Bytes SRAM, plus stack, so a chip with 4k or more is recommended.by sid - General
Re: Baby sized reprap - 16 years ago
Ru Wrote: ------------------------------------------------------- > > Because firmware must be carved from stone and is > immutable! > I guess the idea was, to make it as simple as possible for the "receiver" of the BRR to print a machine. that'll include not to do anything but to feed the beast and to hit the start button. It'll exclude to edit firmware I guess for the "standardby sid - General
Re: Baby sized reprap - 16 years ago
that'd be damn shitty Why: First thing to print should be a small testpattern, to make sure the machine itself is still aligned properly after the shipping stress. Noone can tell how often you'll have to repeat that step. If you cannot change the order of what file is printed when, you may run into serious issues with the filament. You most certainly does not have a coil of filament that's largby sid - General
Re: Help: X axis skip/jumps - 16 years ago
Well, try and quit each and every other application running on your pc other than the reprap host, (disable automated system idle after xx minutes) If you're still getting errors, ask Forrest to help with caching the printed object in the reprap electronics, so that there is no need for reprap-pc communication whilst printing 'sidby sid - Mechanics
Re: Help: X axis skip/jumps - 16 years ago
Are you sure it's the x-axis that's stalling /skipping ? If so, loose the belt (to not turn the motor for now) and check if the bushings run smoothly over the rods, use as little force as possible to move the carriage by hand (use your little finger of the "bad" hand) just push where the belt is fixed. You may feel if there's something wrong. The rods may be bend a little or not perfectly round,by sid - Mechanics
Re: Novice question about freeduino - 16 years ago
Hi eNano, Wow the freeduino is expensive. check I'm pretty sure, that Zach will ship to Argentina as well. (as soon as he is back from his vacation) the arduino diecimila is $35 but I think the sanguino is the better way to go $25 (you need the ttl cable for $20) so thats $45 And you can buy the complete electronics kit there too so make sure you've take a close look to the complete store.by sid - Controllers
Re: CMM (Coordinate-measuring machine) - 16 years ago
I didn't say that it's wrong to have high resolution. Don't get me wrong, I love the idea of having a micro- or even a nanofabber at home. All I said is, that for this development stage of the RepRap a mechanical probe head would be sufficient and easier to fabricate from scratch. As long as the cartesian (darvin in this case) isn't capable of such a high resolution, an ultrahigh resolution probby sid - 3D Scanners, Book Scanners, and Optics
Re: CMM (Coordinate-measuring machine) - 16 years ago
Thought it's about a RepRap tool head... And to be honest I don't think that the need of submicron accuracy is widely spread in here Most parts that are "scanned" are printed out on the RepRap again, I guess, so everythings thats a little more accurate than the printing toolhead will do a pretty decent job. 'sidby sid - 3D Scanners, Book Scanners, and Optics
Re: CMM (Coordinate-measuring machine) - 16 years ago
A ball bearing switch with a needle touch probe would be easy to make, and mostly printable I guess A small pcb, six steel balls, three small rods, two wires and an old milling bit. The rest is printable (almost) I've seen one made this way some days ago, I can't find it right now.... 'sid current song: "the search" - cherry poppin' daddies Here we are:by sid - 3D Scanners, Book Scanners, and Optics
Re: Teething problems - 16 years ago
Just to make sure they didn't change the cablecode for your charge of steppers. Please check resistance of all the wires to each other. you'll end up having four pairs of cable. should be: blue - blue/white red - red/white green - green/white black - black/white Note down your pairs! Phase A should be: blue red Phase B should be: green black BUT it may be that colours have chaned so it may beby sid - Reprappers
Re: Teething problems - 16 years ago
Sounds like a phasing problem. You're sure you wired the motors up correctly? I had exactly the same issue once with running the tiny stepper from a DVD laser carriage with nothing but an atmega. just because I messed up with step order so the motor went half a step forward and half a step backwards at some significant speed, that's a noisy rumble. But still: It shouldn't move at all if poweredby sid - Reprappers
Re: Repstrap project - 16 years ago
At the load applied by the mounted steppers I would guess The steppers are the ones that force the movement, well and the weight of the machine itself of course (milling head) but I cannot imagine anything else that is forcing the machine to bend. So if you can fix the Toolhead somehow and try to run the steppers, they shouldn't move, If they are moving, you require some more stifness (I'd guby sid - Reprappers
Re: Why RepRap is failing - 16 years ago
I've seen some twelve year olds woodworking like they do that for a living. I was impressed really impressed what the two kids made that day, it was kind of a stool case with some safe-deposit that had a "don't ask me how"-lock. Well true, children of a cabinet maker, but twelve, no that's not true.. one was twelve the other was 13 (and a half if you ask him) So I see no reason why any twelve yeaby sid - General