Show all posts by user
(Contents under pressure) -> http://objects.reprap.org/wiki/Paste_Extrusion
Re: Power Supply (for Arduino clone and other G2 electronics) - 16 years ago
nophead, that's dropping voltage by connecting it to an external monitor too; honestly I don't think that's the case. Next time I hook up my laptop to an external monitor, I'll measure the voltage of the usb port before and after 'sidby sid - Controllers
Re: Power Supply (for Arduino clone and other G2 electronics) - 16 years ago
Well, considering what I have seen from old dissassembled laptops I used to have laying around... All ground_routes are connected to the Metalparts of the case. Connect that to some earth near and you should reduce noises a lot. Oh You can (if you have) screw the cable to the serial or parallelport screwterminals, or you can simply use the kensington-lock if you have one (who hasn't) Or, If youby sid - Controllers
Re: Laser Cut Parts (Bits from Bytes) - 16 years ago
I'd suggest sodium-thiopental and she'll sing like a bird 'sid oh it's commonly known as sodium pentatholby sid - Mechanics
Re: Gen. 2 Stepper Driver single sided - 16 years ago
then etch the doublesided board yourself, as I said earlier, its not hard to do. I already did, and it was easier than I thought, I'm sure you can do this too. milling is even simpler than that. Okay it's a mess in your kitchen afterwards, but hey, you're the one that wanted to do this at home 'sidby sid - Controllers
Re: die cutting - 16 years ago
the common altitude of a standard airplane is well below the one of a satellite, that being said: Blue is greener than red 'sidby sid - RepLab Working Group
Re: Gen. 2 Stepper Driver single sided - 16 years ago
Well, First thing : two of the bridges are not necessary, just reroute a bit You may reroute so that a third bridge gets unnecessary, but that's somewhat harder guess. But one question I don't get out of my mind: "Why must it be a single sided board" ? You can easily etch doublesided boards at home with a pretty good result (check instructables.com to see how it's done) And to be honest: Whby sid - Controllers
Re: What Z-corp ink is made of - 16 years ago
And the "most important" question: Quotehere is a description of what the powder is made of. It's just dental plaster ( Durone 4 Brand) + 30% of weight maltodextrin( midway brand, guarana with acai flavor). I did try some other flavors but it doesn't work well as this one. I don't know why, maybe the guarana or acai helps on bonding. I did try just maltodextrose but it won't work as good as theby sid - Powder Printing and Selective Laser Sintering
Re: Stepper motor sensors getting no power - 16 years ago
Check your powersupply first! If you haven't any cold joints the 5V are simply passed from the powersupply directly to the pins. (the leftmost cable of the powerjack) It's a good idea to check C5 and C8 too maybe you short some circuit. 'sid See layout: (vcc is what you're looking for)by sid - Controllers
Re: Fabbing overhangs ... - 16 years ago
positioning of prefabbed pieces... wouldn't that be something you could use a pick'n'place toolhead for? Surely not one for smd electronic parts, but maybe something more sophisticated for this job (no vac pump, but a tweezer for example) That way one could re-use the prefabbed parts for the next object too just a thought 'sidby sid - Paste Extrusion Working Group
Re: Were it all begins - 16 years ago
Hi Stewart, good to have you here. Let me assure you; yes it is a fantastic community here, with helpful people all around. I didn't get too far with my project yet, but I do know, that I can count on some help if I get stuck in any metaphysical way And I would bet in any other way too. So, get yourself comfortable around here; I'm sure you'll like it 'sidby sid - Reprappers
Re: Gears for the Extruder - 16 years ago
I do have a drillpress, but not a good one, My drill is not the best thing available too. It's really hard to get through 3cm of that plastic (hdpe as I was told, unsure right now) with 500W of drilling power. And I do think it's impossible to bore 8cm long holes (which must be done) not that my drillpress have a lift close to 8cm... But I don't think that changing the drillpress would solve tby sid - Reprappers
Re: New Diagnol Tie for Reduced part count and build time - 16 years ago
I must agree with nophead, its stiffness that's needed (at least that's what I can see, 'cause I never touched a darvin yet) But stiffness can be achieved in various ways. Thinking of a bicycle wheel where one half of the spokes handle the pull and the other half the pushforces (normally, ther are many ways to spoke a wheel though..) A single spoke can handle almost no force at all but altogetheby sid - General
Re: $30 Plastic Welding Toy - 16 years ago
I wonder what this "welder" can do at all. Using four standard batteries it has... what.. 6v and 3000mAh or 3V and 6000mAh? That doesn't read too promising. Change the batpack every two hours is not what's suitable for an extruder. So first of all it has to be converted with a powersupply (if everything would be that easy ) Then, how does it weld? does it use filament? or is it more like one ofby sid - General
Re: Gears for the Extruder - 16 years ago
I surely will. the problem I do have right now is that my "drill instructor" *fby sid - Reprappers
Re: Gears for the Extruder - 16 years ago
In fact I have no extruder (not yet) But I'm pretty serious about not having any gears (except the ones in the gm3 itself of course) But there's much left to do for me so I will take care about the extruder later 'sidby sid - Reprappers
Re: Can't print McWire X and Y stage stickers - 16 years ago
I think that's it Arthur. He already used legal sized paper. I he'd used A4 sized paper (wich is a bit smaller) maybe he'd found that that bit was the bit cut off 'sidby sid - General
Re: Gears for the Extruder - 16 years ago
use a gear with a smaller bore size and a drill 'sidby sid - Reprappers
Re: New Diagnol Tie for Reduced part count and build time - 16 years ago
until now I thought I understood how that thing should work. Now you come up with the two ends, and I'm totally lost in confusion. Would you mind drawing the strap with that thing attached ? 'sidby sid - General
Re: My first Arduino powered drawing - 16 years ago
cool idea! I like the dualslide-system alot (maybe that's because I used it for my y-z connection) using it for the x-y would (if rods and bushbearings are used) mean, the toolhead is supported by four instead of just two rods. I like that! 'sidby sid - Reprappers
Re: Why RepRap is failing - 16 years ago
Well in that case (you want to keep trying it benefits you etc.pp.) Why don't you just make some proposals, that can be adopted to make things easier for you (and many others) to follow the project? See, it's hard to get everything documented, not every single word is usefull, not for the majority though, but every bit can help keep up the improvements for those who care. It may be best, to haby sid - General
Re: The extruder motor and changes needed in extruder robustness - 16 years ago
Demented Chihuahua Wrote: ------------------------------------------------------- > @Joshua > > Actually, the differing diameters, pitches and > what not are there for good melt quality and > consistency in extrusion. Not for air removal. > > Demented Actually, the melt quality depends on air removal in large amounts 'sidby sid - Mechanics
Re: BOM issue with Y toothed pulley - 16 years ago
or to be precise, you can measure the pulleys in the stl file. That way you'll have exactly the size that was uploaded to the set. Or if you do what nophead tells you to, you're definately on the right path 'sidby sid - Mechanics
Re: Objects.RepRap.Org - Any volunteers? Let's build a file library! - 16 years ago
SebastienBailard Wrote: ------------------------------------------------------- > Right now, what do you think of what's at > ? > It may be me, I'm not a fan of wikis. Not for stuff like this. > Do you guys like the general feel, or should we > start looking at a video or music library-like > approach? > I would say so, it's hard to browse wikis without knowing what youby sid - Administration, Announcements, Policy
Re: buil a componet - 16 years ago
sure the reprap host software is needed to actually print the files you want. stl files are used for printing (stereolithographie) you can export those from your favourite 3d mesh editor such as blender, 3dsmax, art of illusion, solidworks and so on. deskartes only checks if the stl files are printable and if you want, makes connectable parts of your single file to prnt the parts seperately. unby sid - Reprappers
Re: Baby sized reprap - 16 years ago
using smaller motors isn't cheaper If you have to use smaller motors you will have to ship the motors around, or you'll have to keep them and the next one will have to buy additional motors, no matter how cheap they are, they are useless afterwards, because you send the BRR awy after you're done prining the darvin parts. Okay, same electronics (except the controller chips) hmm.. not perfect, bby sid - General
Re: Objects.RepRap.Org - Any volunteers? Let's build a file library! - 16 years ago
If there is a webserver that could be used to store the stl-files, then there is more than just one way to do it. You may can use some regulare forumsoftware (like vBulletin or phpbb) and just attach the stl to the post (Proper Topics required though ) or the added download section, that way one could discuss the files, show renderings, printouts and so on. Or you could "mis"use a video or musiby sid - Administration, Announcements, Policy
Re: Bed Corner for a Larger Build Volume - 16 years ago
> but ...reducing the build platform > by the necessary amount (about 2.5cm +- .5cm) > would not significantly reduce the working volume. > At least on my RepRap, the printing head cannot > print within 3.5cm of three sides of the platform. > On the fourth side, it's closer, but it's about > 2.75cm away. That's what I meant, and first of all that's what I meant with "may nby sid - Mechanics
Re: The extruder motor and changes needed in extruder robustness - 16 years ago
VDX Wrote: ------------------------------------------------------- > ... not in my basement yet > > But here: > > ectiweld_injection_moulding.htm (flyer: > > ast_Injection_Mould_Prototyping.pdf ) is a > 'hand-injection-moulding-gun' with nearly 1000bar > pressure. > > AFAIK the pricing is something to 2.800 Euros for > the hand-gun excl. the press ... >by sid - Mechanics
Re: BOM issue with Y toothed pulley - 16 years ago
Egal, as long as they are all the same don't make them too small though, to have enough teeth holding the belt. 'sidby sid - Mechanics
Re: Baby sized reprap - 16 years ago
I just don't get it... why does the complete boot bot have to be small? isn't it enough to have all the parts fit in a small box to get it shipped for cheap? There's no reason for sending the stepper motors, the electronics or steel rods, studdings, nuts & bolts. All those parts can be used with the darvin afterwards. You buy the electronics, motors and metal parts. And build your boot-bot.by sid - General