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(Contents under pressure) -> http://objects.reprap.org/wiki/Paste_Extrusion
Re: a bit off topic.. about diodes - 16 years ago
Well.... I think I need your help again, sorry. I found a 0 Ohm capacitor that may have caused all the errors I was encountering, but since all I have here to test is a simple multimeter there are some doubts I have. 1) can I trigger the gate of a 2n6505 datasheet: scr with my multimeters continuity test? that is: should cathode vs gate beep? 2) those two pins (cathode // gate) are connectedby sid - Controllers
Re: Machining parts for the extruder...anybody doing it? - 16 years ago
QuoteDoes this mean I shouldn't bother? No no.. please go ahead Brian! It's just that I thought, it'd be a benefit for unexperienced users to just connect some cables and not machine screws, wind nicr wire, play around with firecement and such. Making things as easy as possible will help spread the idea I think. For those who know how to do things there will always be a homemade version of heatby sid - General
Re: a bit off topic.. about diodes - 16 years ago
I know I know, I'm sure I do have one of those PII (I think even a PIII Slot1 Mainboard) with an ISA Bus laying around somewhere, but to be honest, I don't want to just build another PC just for controlling a plotter that may never work* *I fixed obvious errors today, now there's still at least one other that I didn't found yet. (power on, *buzzrrrr*, fuse toast anyone?) But what I've found fby sid - Controllers
Re: Machining parts for the extruder...anybody doing it? - 16 years ago
Larry, I had exactly the same trouble with machining parts, so I kindly asked a company (who's making soldering irons) to custom build one of there desoldering heaters to match... And they did... almost that is, at the moment there's too little resistance for the heating element, and a type E thermocouple which should be a type K. Nevertheless nopehead and Zach do have a prototype, oh well andby sid - General
Re: Machining parts for the extruder...anybody doing it? - 16 years ago
Hang on reifsnyderb, if all goes well we have some readymade heaterbarrels early next year Than there's just the screw left to machine (that can be done with a drill and a file ) Until then you may want to take a look at bitsfrombytes.co.uk There's an extruder kit you can built without any machining. 'sidby sid - General
Re: Progress Update - 16 years ago
I'd say I'd prefere the pwm* driver but yes. (*because you cannot "reverse" a solenoid) Just take care of the settings for current 'sidby sid - Reprappers
Re: a bit off topic.. about diodes - 16 years ago
thanks Viktor, honestly, but I don't have any working PC with an ISA slot either. So that wouldn't help me out I'm afraid. Yes I think GPIB is "the same" well at least compatible. There is an australian company, that sells usb interfaces for relatively cheap: That is, after a successful testrun 'sidby sid - Controllers
Re: a bit off topic.. about diodes - 16 years ago
extremely old (in computer years, close to stone age) (d.o.b. sep. 12th 1981 !) Any questions? Yes, something like that was what came up to my mind too just use the reprap controllers with modified firmware to be precise. But, no more missing or errorous parts I could find right now. So first I'll try to replace the diodes, add a new cable and fuseholder and see if I can run it in "testmode" tby sid - Controllers
Re: a bit off topic.. about diodes - 16 years ago
That's exactly how the old ones where blown I got the plotter seventh(?) hand.. someone tried to repair it and messed things up. Not only the rectifier but there are also cables missing, shorted fuseholders and further more, I'm not quite done with errordetection Let's say: there are some parts to replace but the worst thing that I just figured is: I need to have some sort of controller whicby sid - Controllers
a bit off topic.. about diodes - 16 years ago
Hi, I have a dead plotter laying around.. two diodes are blown away. They are signed: MR 501 1807 from what I can see in the repair manual those are motoroloa rectifier diodes 100V 3A I think this should be the matching datasheet: I don't know what the second number is for so I take it as a charge number Since they are out of production for a while now, is it safe to presume that I can repby sid - Controllers
Re: Plastic welding rod produciton line - 16 years ago
Very sad picture you paint there Forrest. unfortunately enough that you're right with that, that does mean we have to enhance almost everything for safety reasons. I'm quite unhappy to know that untrained 12yo snip of cables of PC powersupplys and shorting them. I know that there are enough 10yo that can do that without advice, but I do also know that there are 20yo that can't! So... powersuppby sid - Plastic Extruder Working Group
Re: Size and self awarenes - 16 years ago
float point yes.. but 64 bit for sure 'sidby sid - General
Re: Size and self awarenes - 16 years ago
you're right 32.. 8bit = 1 byte (8); 2byte = 1 word (16); 2word = 1 long (32 !) 2long = 1double (64) and so on ... What about storing positions not steps... is that viable? (steps is a 160times larger number) probably not... 'sidby sid - General
Re: Progress Update - 16 years ago
You can use a solenoid to gently push the pen to the paper (just like most plotters do) should be fairly easy to accomplish and control. 'sidby sid - Reprappers
Re: Size and self awarenes - 16 years ago
The firmware of the driver circuit stores the position values in a variable, to "remember" where the toolhead is at this very moment. variables can be defined so that they hold different types of informations. Some of which are smaller than others, for example if it's defined to be a boolean it can only hold "0" or "1" not more, not even "2" (because that'd require a second bit, and it can only hby sid - General
Re: How to print Gcode from Host - 16 years ago
Sorry for jumping in sideways, Wade said something that made me think QuoteI actually get better accuracy running at 8 mm/s and slowing down my extruder, but I usually run it at 16 mm/s just to keep the production rate up. So is there a way to set different speeds for outline and infill? And if not, any chance you can add that? 'sidby sid - RepRap Host
Re: pcb plans - 16 years ago
congratulations for two identical questions in six minutes! Take a look at for example .. you'll find the "Files" section with different kinds of layout 4 the files You'll find similar entries for each and every pcb if you follow: 'sidby sid - Controllers
Re: Plastic welding rod produciton line - 16 years ago
I've seen some filament machines on the tv the other day, they made synthetic turf ... nevermind, the point is, they said to ensure constant filament diameter they extend the warm and soft filament when it comes out of the extruder, that way the bigger and softer parts stretches more than the thiner parts.. warming the filament and repeating that multiple times they made some 0.1mm filaments. Doby sid - Plastic Extruder Working Group
Re: Simple Dispenser - 16 years ago
looks good. maybe you can modify the existing reprapped version (if you can get hold of the stls that is) 'sid PS Now I know... I knew it looks familiar. Blogentry: // "Biollante Regenerates"by sid - Paste Extrusion Working Group
Re: Darwin V1.05 Printed Parts for sale - 16 years ago
Thank you Wade, honestly thanks a lot. Good to see the first printed parts coming up here. 'sidby sid - For Sale
Re: Intergrated Controller Board - 16 years ago
having all on one board is not such a good idea as you might think think of the following scenario: all assembled and working properly.. untill you have let's say a headcrash because of the failure of one of the endstops. One axis stalls, the driverchip heats until it's toast and the next day, you find the traces for that chip you've just desoldered have been delaminated. So you have two perfeby sid - Controllers
Re: Tissue engineering molds - 16 years ago
either I didn't notice or it wasn't there before... in the yellow box on the right, there is a small link (Abstract) clicking on that will show the article directly. maybe it's something about referers or missing cookies or something. 'sidby sid - Tissue Engineering
Re: Host software Issues (a cry for help) - 16 years ago
Quoteit is very very very very very wrong to have an unreleased version in the instructions hehe, well take it as a sneak preview As far as I know the host you have there CAN print GCode too, but it's very complicated I was told, so use snap instead. I thought 1.3 snap was stable too... well, we'll see 'sidby sid - RepRap Host
Re: replicatorG question - 16 years ago
To make sure it's not because of the installed java nor the new replicatorG 0002 version you may want to give the portable version a try I made some time ago Just extract all the files and run the replicatorg/run.bat It'll use the bundled java files. If that's okay you can try updating the replicatorg/ *.* files make sure to use the old run.bat (rename to run_portable.bat maybe) at least ediby sid - RepRap Host
Re: Host software Issues (a cry for help) - 16 years ago
Hi Leav, 1) You have the latest version of the host available in compiled form. There is a newer source code available you can compile yourself though. (just what's discussed here: ) 2) as far as I understand the driver software is the host, yes. or replicatorG or the skeinforge package, just what you prefere to "drive" the bot with. 3) 4) As far as I know you need replicatorG or skeinforgeby sid - RepRap Host
Re: How to download the new host software - 16 years ago
Well Ian this is partly true You cannot help someone that doesn't want any help at the moment If the developer of the software has the feeling that he needs help, he will surely let us know. At this stage I guess it'll only be some suggestions that come from naive users, suggestions that are either unwanted or unnecessary, don't get me wrong, some suggestions may be a good idea, but you'll haby sid - RepRap Host
Re: How to download the new host software - 16 years ago
No it's not benefical for developers to have an unfinished subversion given to the naive users. Too much "why is this and that not like that and those?" Too much "why isn't ... working yet, why can't I do ...." in short: comments that are not helping to solve current problems, nor improving the software. If you know what to do to improve the subversion to finish it, or can help the software in aby sid - RepRap Host
Re: problem with x idler bracket - 16 years ago
you'll find some pretty strong glues for acrylic material in your hardware store, so if you have both pieces left, you can try this first. I glued some moulded parts with ordinary cyanoacrylic glue which went pretty well. Since you still have both parts, you may also try to make a mould and use some resin to make a replacement. 'sid PS Ian will surely help you, sure, but you broke the part; soby sid - Reprappers
Re: My Reprap-related PhD outline - 16 years ago
Hi Reece, I found the camera I talked about earlier, it seems that what I've seen was some sort of flashback (at least I think so) nevermind: It was the "minolta 3d 1500" in corporation with metacreation.com (now viewpoint.com afaik) but as far as I can see that was eight years ago, but I've seen it THIS year, on that review... weird... 'sid canestavision may be another good looking approaby sid - 3D Scanners, Book Scanners, and Optics