i agree wholeheartedly with you. we'll get there. whether its in fits and starts, or slowly and surely, i cant tell you. but i do know we'll get there. first step: breaking up the slice/dice -> print commands chain. =)by ZachHoeken - RepRap Host
blerik Wrote: ------------------------------------------------------- > Come on Zach! That is low. The least you can do is > give us a proper description of your problems with > printing the MiniMug. So the rest of the team can > try and understand the issues. Now you're just a > baby; my favorite toy is broken, someone get me a > new one... i posted it in the forums. to be faby ZachHoeken - RepRap Host
heres the debug info from trying to print a minimug from the latest version of the host software (#1362)by ZachHoeken - RepRap Host
gcode has 2 time measurements: units/minute (mm or inch depending on which mode is set) or inverse time. i'm not sure how inverse time works (yet) but we can safely focus on teh first one for now. if you're in units/minute mode then the gcode F20 mean 20 units/minute. its not something we can fudge... its in the spec.by ZachHoeken - RepRap Host
ah yes, i like your reasoning there. it seems very solid. i think with that in mind i can figure out the step rate for the 'master' axis and from there its simply a matter of setting the right delay and doing the normal DDA motion. next up: arc's. who wants a piece of the pi? cheers!by ZachHoeken - RepRap Host
wow, i had no idea this was such a hotbutton issue. i got a very similar response from the dev team. i have a feeling this is a bike shed problem. (http://en.wikipedia.org/wiki/Color_of_the_bikeshed) here's the deal: i have a working machine that i want to print stuff with. currently for whatever reasons the RepRap host code doesnt work for me to print a minimug. all i know is that i want toby ZachHoeken - RepRap Host
Yo, So I'm implementing the GCode feedrate option. Basically it works like this: you can send a gcode command like this: G1 X30 Y90 Z55 F20 Assuming we're in incremental mode as well as millimeters as units, this means: move x+30mm, y+90mm, z+55mm at a rate of 20mm/minute on a straight line. here are the variables i'm working with: * steps/mm = 100 (constant in program) * mm/minute = 20 (by ZachHoeken - RepRap Host
deadgenome Wrote: ------------------------------------------------------- > ignore povray... to slice up an object > horizontally into a series of closed paths is > mathematically pretty easy... I'll try to code > something up over the weekend if I have the time. > thats the problem. sure, its easy to do, but why waste our time re-inventing the wheel when someone has already donby ZachHoeken - RepRap Host
brucew Wrote: ------------------------------------------------------- > How about using Fab Labs Cam.py python script? > > to convert the .stl to gcode directly then we need > to add to the python to add the reprap gcode setup > commands.. > > Bruce # # (c) Massachusetts Institute of Technology 2006 # Permission granted for experimental and personal use; # license for commby ZachHoeken - RepRap Host
blerik Wrote: ------------------------------------------------------- > ZachHoeken Wrote: > -------------------------------------------------- > ----- > > I recently got my bot up and running and > > compatible with the RepRap host software. > > Unfortunately, there are still problems with > the > > slice and dice code so I am still unable to > print > &by ZachHoeken - RepRap Host
degroof Wrote: ------------------------------------------------------- > It's been a while since I've played with Povray > but I think it's possible to create an object > that's the intersection of an arbitrary object and > a plane. Do that repeatedly, moving the Z of the > plane and rendering each frame to a PNG. Hmm, can > Povray do flat (i.e. non-camera) projections? yes, ifby ZachHoeken - RepRap Host
I recently got my bot up and running and compatible with the RepRap host software. Unfortunately, there are still problems with the slice and dice code so I am still unable to print anything. I have very little experience with 3D programming which is a bummer, because I'd love to help with that. However, it seems like this problem is one that we should have looked to outside sources for inspirby ZachHoeken - RepRap Host
oh man, batteries not included is a great movie. (sorry for not contributing)by ZachHoeken - General
indeed. i'll see what i can cook up.by ZachHoeken - RepRap Host
made the release on sourceforge and started a new thread about it. please discuss there.by ZachHoeken - RepRap Host
Read the blog entry here: discuss any bugs/issues in this thread, please.by ZachHoeken - RepRap Host
yeah, i need to update the drawings, but these things are really helpful.by ZachHoeken - Controllers
well, i would suggest wiring them in bipolar-serial. still, from the rating, it seems you'll need a power resistor to limit them a bit, as they would still be at 1.48 ohms/phase. you should probably send Ian an email or ping him to answer this thread. looking at the datasheet, the colors are listed in the order they appear, so it seems that the color/white ones do not directly correlate to A/Aby ZachHoeken - Controllers
yes, theoretically. you'll want to get a parallel port breakout board that has opto isolation chips on it, but the stepper *driver* boards use the industry standard step/direction interface. this board looks promising: if you do so, please let us know. i'd love to get that route documented somehow as its pretty rad.by ZachHoeken - Controllers
GREAT NEWS: this fixed the bug!!!! i only had about an hour to test things out and such, but it definitely fixed the bug. there are a couple of other *very minor* bugs that prevent it from working 100% properly. i'll be fixing those tonight and will probably be making a new release of the firmware as well. cheers!by ZachHoeken - RepRap Host
yup, pretty much any smaller gauge wire works. cat5/6 is just very common and has plenty of uniquely colored wires. very handy.by ZachHoeken - Controllers
well, i sell it on the RRRF store. i'm about 1/2 way through itby ZachHoeken - Controllers
i'm not entirely sure what you mean. i've spent the past 3 months learning how to use and program an Arduino to control steppers, so I can definitely help you. first off, you should look into the stepper control code we've already written. the easiest to understand is in the GCode_Interpreter firmware. its located here: secondly, what stepper drivers are you using. i would recommend the RRby ZachHoeken - RepRap Host
the fab@home design is cool, but unfortunately their MIT style includes using special linear actuators (aka stepper motors with a screw embedded) that cost $150 For a syringe extruder, thats the majority of the cost. Hell, it should cost less than $50 for the whole kit, using a cheap NEMA 17 and/or one our our $6 dc motors and some threaded rod. perhaps we could take theirs and modify it... thby ZachHoeken - Polymer Working Group
okay, i'll post my design when i get a bit of time. it will be easily attachable to a Darwin or McWire bot. Either will suffice, it just depends on which you'd rather build. Of course you are free to build your own machine as well, its just that I imagine you'd rather get straight to printing rather than mess with cartesian botsby ZachHoeken - Polymer Working Group
yeah, cat 5 is just fine for that. its actually easier as well because it doesnt have the internal divider. unfortunately for me, i though that cat6 would be better and bought 1000ft of it. when that runs out, i'll be buying 1000ft of the cat5. cheers!by ZachHoeken - Controllers
well, i'd say the resins you found look great. now we need to get you a machine to use as a test bed, as well as a syringe based extruder. i'm working on a lasercut design for a syringe based extruder. it probably will be a month or two before i even get the first pieces cut though. its just an idea in my head right now.by ZachHoeken - Polymer Working Group
Hey Guys, Okay, so the preorder product is up on the store, located here: Please pre-order, because if there aren't enough orders, I'll have to refund them or something :-/by ZachHoeken - Mechanics
very nice. if you need any help with SNAP or have questions, the docs should be pretty good. if those dont answer your questions, then let me know because i have spent alot of time dealing with it and i understand it pretty well.by ZachHoeken - Reprappers
yeah, i feel stupid for enabling the interrupt. but if this works, it will be great. i cant wait for tonight to test it out!by ZachHoeken - RepRap Host