no, but in the past when this was a issue i could move in the positive direction but not in the negative. also i cant move the extruder stepper eitherby RBisping - Controllers
just finished soldering together a set of pololu boards myself and installed your firmware with some success, it at least shows the temp of both extruders and heats them properly, but any time i try to move a axies or extruder the entire host software locks up and nothing moves. also it keeps saying m113 is a illegal m code, still looking for the list of m codes for reprap thoughby RBisping - Controllers
yea, the only way to stop people from making and using repraps would be to destroy all knowledge of how to do it or even the concepts. which would require killing everyone that has any knowledge of the technology. This will not happen as long as there are people living so i realy have little fear of anyone being able to restrict research in this knowledge.by RBisping - General
one of the differences between makerbot and mendel is it forces you to know a lot more about making it than does a makerbot. If you can make a mendel then for the most part you can troubleshoot it. though, I have to say im having some issues with my mendel that i may eventualy need some help with but.... we shall seeby RBisping - General
we had a man at work today redoing the floors and he was using a plastic welder to seam the pvc sheets together. I had already been talking to him about my printers so when i started looking at his filament he offered me about 10' of it to try. Has anyone ever tried using pvc weld wire before?by RBisping - General
ok, when it comes to mendel and multiple print heads its probably going to start with paralel heads with bowden mechanisms. and a good support material has been found in using pla as the support and abs as the build material. nophead and erik i believe did some great experimental work with this just before christmas. right now im doing work with my makerbot to install dual heads but having issuesby RBisping - General
hey, decided to jump in. I also made a heated bed for my makerbot and it works well for abs. the key difference is that you only heat to 60 deg and print on plexi or lexan. I have been having some issues with getting too much sticking and still have to use a raft not because of warping but because my set up is not completely level yet. I did just order two of the mcmaster heaters and will see howby RBisping - General
the makerbot firmware does support stepper driven extruders. once you have the machine extruder setting set for it. the one thing right now that the makerbot code does not appear to support correctly is multiextruder functionality. but there are only a few of us that are agressivly pursuing that functionality. Hopefuly soon even that will be supported out of the box. Also the makerbot code supporby RBisping - General
my boss linked me to this site and i found this article that reprapers may be interested in. http://www.designnews.com/blog/Gadget_Freak/29464-Self_replicating_machines.php?intref=hottopicby RBisping - General
that gives me a momentary thought about the frostruder using a metal or glass syringe and acetone dispensed on powdered abs. cant honestly say this would be practical but it does make me wonder.by RBisping - Powder Printing and Selective Laser Sintering
If any of you have been following makerbots progress on a frostruder the idea of using one to dispense water/binder at low resolution is also a posibility. Much lower resolution than using a print mechanism from a inkjet printer of course, but for some powders it may be a more viable option. not sure yet. havent made one but will shortly.by RBisping - Powder Printing and Selective Laser Sintering
a very basic powder printer can easily be hacked from most any inkjet style printer and I have been working on one of this kind of design off and on for a while now. most of my time though has been taken up in my makerbot and building a mendel so haven't worked on this project in a few months. While I agree that neither of the reprap designs are appropriate for powder printing in any major way Iby RBisping - Powder Printing and Selective Laser Sintering
I was just looking at something i had seen a while back and thought of a posible idea. mount a hp cartridge next to a reprap extruder and a powder dispenser. then have the extruder build a outer wall, deposit the powder against one edge and have a fixed distance wiper on a actuator to drop it below the level of the extruder nozzle to level out the powder to the height of the formed wall, then scby RBisping - Powder Printing and Selective Laser Sintering
there are many different methods of producing circuit boards and which one is "the best" can and will be argued in perpetuity but my question remains as to if this device would function in the fasion that I percieved. I may just have to buy one and try it but was hoping that someone else who has one might know the answer.by RBisping - Controllers
hmm, the infomercial i saw was showing a much lower price than that i believe but i realy wasnt watching it. from what i saw everything was integrated in a very small package and each component supported the process as a whole. but my real question was its sutabuility as a pcb manufacturing process. once the mask for a board was produced you could pump out a bunch of them rather quickly if the maby RBisping - Controllers
I was just seeing a infomercial on a screen printer made by the same people that make the circut machine and it does screen printing on various materials. Has anyone else seen this and does anyone else see the potential for circuit board production using this device? It would have to be tested of course to verify that it will act as a mask but from what i see its quite possible.by RBisping - Controllers
ive been looking into powder printing a bit myself. for those things that fdm style printing doesn't work as well for. also after seeing the NASA tests of the edm machine i was thinking of something that was using powdered metal and a low power electron beam. still in the conceptualization stages but putting a bit of serious thought into it right now. The reasons im thinking this might work in aby RBisping - Powder Printing and Selective Laser Sintering
it probably is there somewhere but i havent been able to find it yet so far for me its not a real big deal, still using a dc motor extruder right now but if i could find the code for it i would be printing out a stepper version right now.by RBisping - Controllers
i got the version i converted this from out of the hacker dictionary. their version is supposed to have come from either/both berkley and mit back in the 60's and supposedly they cribed it from a flyer that was popular in u.s. machine shops during ww2.by RBisping - General
yes, it appears that the stepper part of the 1.6 firmware is not complete. did the same test and had the same results. went through the software and it appears that the stepper portion of the extruder board hasnt been implimented yet.by RBisping - Controllers
i dont know if anyone has tried to do a belt drive mcwire yet but ive thought about it a litte and believe it would be posibleby RBisping - General
Das fabinmachine ist nicht fuer gefingerpoken und mittengrabben. Ist easy schnappen der springenwerk, blowenfusen und poppencorken mit spitzensparken. Ist nicht fuer gewerken bei das dumpkopfen. Das rubbernecken sichtseeren keepen das cotten-pickenen hans in das pockets muss; relaxen und watchen das blinkenlichten. minor reedit of a clasic for makerbot/reprapby RBisping - General
ive been working on a design that has some potential. its actualy using a industrial glue system's pump that im working on attaching to a melt tank. the Idea is to have the whole mass melted and hopefuly you can pump the liquid from the bottom (as we do with the hot glue) and run it through a extrusion/forming process. Its still very much a work in progress and by its self will not realy be practby RBisping - Mechanics
Thanx forest. these will probably make this a whole lot easyer Edit: after looking at the instruction im not sure if were talking about the same thing but havent actualy dl the files (im at work). I believe that the normal name for a linear gear is a rack so i will assume were still talking about the same thing.by RBisping - Mechanics
ive been thinking of a positioning system using a flat gear that would be printable on the reprap itself. havent made a stl or anything but plan on it, making it about 6" long per section so there can be several placed in a line for the entire lenght of the stroke. and have a gear on the stepper attached to the axis being moved. but again cant prove the concept till i get my strap finishedby RBisping - Mechanics
well it looks like im going to be able to get to the jan 24th meeting if anyone else decides to attend.by RBisping - Washington, Seattle RepRap User Group
was reading this thread and got cross linked to the other thread about recycling and extruding filament. not gonna cross post what i wrote there but I would love to see any input on the ideas.by RBisping - Plastic Extruder Working Group
I have been looking into making a filament extruder while ive been building my repstrap. My current concept extruder would be a large aluminum block with gear pump pressurizer. very much similar to a auto oil pump mechanism. the feed into the gear direct from a largish heated tank and extruded out of a 4mm end hole. from there the filement would go through several heated/warm rollers of gradualyby RBisping - Plastic Extruder Working Group
how about just attaching a high qualtity laser mouse so it reads its movement for positional correction. not realy sure right now how to implement this with just the arduino setup but just a thought.by RBisping - Mechanics
when it comes to straight runs of angled material 45 deg or more in angle doing a cross hatch bridge ############# for the length of the overhang where you print several short lines in the direction of print and two or more parralel lines in the direction of the overhang moving up the build area and caping the point of contact with a ^ point of contact is very similar to the tree concept victor pby RBisping - Plastic Extruder Working Group