I want to update my "time calculator" for g-code ( ) to properly support marlin too but I'm having issues going trough the arduino code structure ... attm it works great with smoothieware that's also based on grbl but that kept the junction_deviation instead of jerk so the speed calc is bit different. There's some nicely visualized data here about junction_deviation if anyone is interested andby arhimed - General
Quoteramses061 Hello everybody, I have a HY-DIV268N-5A driver. It is very crappy driver. Make sure you open it and put some thermal grease between TB chip and the cooler. Also not that chip can do "max 5A" in peaks only, max it can output in ideal conditions is 4.5A normal operation. Furthermore note that HY-DIV268N-5A schematic is very wrong. It's driving your steppers with only 30% of torquby arhimed - Controllers
I am few (three iirc) years in the RepRap project (darn time go faster then one would like) and I have not seen that many improvements on the extruder design since the drive moved from DC to STEPPER .. so "changing quickly" ... I would really wish we do that much faster ... that's why I believe we should encourage "any" investment in the development of new things .. especially the extruder part .by arhimed - General
brnrd, I don't agree we are going in circles. wrt original post, I think we have a consensus on "what is protected", as for the Laszlo, if I know that guy and I really think I read ppl good, he soooooo don't give a damn about particulars of the licence itself. He might be "pissed" on the initial message from Sebastian (I know I would be very pissed and I believe some of you shared that too) - howby arhimed - General
few points where I strongly disagree are 1. forum/wiki need policing - I do not think so. The reprap community is not a community made out of those 90% of population with IQ slightly higher then a moron but actually from those other 10% of ppl who know how to think for themselves... policing will only make ppl resent the policemen and leave the community if the policing gets too strong (as it isby arhimed - General
@kludgineer, that was mine understanding on "what he wanted" - not mine interpretation of "creative common licence" ... not to forget me != laszlo so i it is mine understanding of what he wanted, not my knowledge of what his intention was; I was under impression I made that clear. I do agree with your and nop's interpretation of the licence; it makes sense to me - IANAL so cannot confirm if it isby arhimed - General
@AgeingHippy and what would you want him to answer? I believe he stated his mind selecting this hot end clearly, he would like to sell them and he would not like you to copy them, but to order them from him. If you in any way copy them, he will for sure not sue you as the initiation of the process would in any way cost many times more then anyone can ever earn from selling reprap hot ends...by arhimed - General
nophead Wrote: ------------------------------------------------------- > All Archol's copyright protects is copying the > design files. Nothing to stop anybody using the > files to make hot ends and selling them. No need > to reverse engineer since copyright does not stop > you making use of the information it only stops > you copying information. There you go, I'd say Chris kby arhimed - General
@kludgineer I'd not say it is the reason reprap exist but the reason reprap can exist ... wrt everything else, I believe I agree with you 100% ...by arhimed - General
Don't get me wrong, I just said that I think GPL is maybe wrong for the hardware (because of the wording in the licence itself) and that CC might be better choice. I might be wrong, that's why I would really like someone who is lawyer to read those few licences and share his opinion ... It really gets weird to discuss licence not a single participant in the discussion really fully understandsby arhimed - General
NoobMan the 1+2 > 2 does not really have anything to do with GPL ?! At least with software different segments can have different licences and "cannot work independently" makes no change - here's the example, there are compiler optimization algorithms that have their own licences and cannot operate outside of a compiler, so they on their own don't do anything but are "sold" and "licenced" and "by arhimed - General
Sebastien, I think you are aware on how much I respect open source and how much of my life I put into open source community (not related to anything hardware/reprap related)... I'm also no expert in licensing .. not even close to one ... and I really don't care to understand licences .. (as I publish most of my work as "open licence" or "do what ever the hack you wanna do with it, just don't bugby arhimed - General
@makergear, sorry mate, I really tried to find those drawings and I failed (I do find your site very hard to navigate). I am very pleased you pointed me out to these (I asked via email if I can get those dxf's, never got any answer). Also, I don't find lack of that documentation as anything bad as I really believe that anyone is entitled to decide what licence they will use and how much documentaby arhimed - General
I do not want to "defend" Laszlo but I think some you went bit too far... Some points I'd like to make 1. The NC/ND DOES NOT prevent you to make GPL part with that extruder... so yes you CAN print mendel parts with it .. the whole idea is idiotic I must say ... It is like you purchase electric screwdriver that is licenced under some closed licence and you cannot use it to screw bolts on your opeby arhimed - General
using any 200K thermistor works fairly well. RT curve does not match but you will be in the +-5C range (real - shown temperature). If you don't have 200K NTC, you can use 2 100K thermistors (attach them both to the print head) and you will have similar precision. Using the pot will make calculating temperature from the display'd one pretty hard. I tried with bunch of different 100K and 200K NTC'sby arhimed - General
I have 4 different .doc files and 2 .pdf files and every each one of them show picture of the same board but different pinout for the connectors (and none of them is same as what I posted here, what I traced on board), so I believe there are probably different revisions of the board out there that look similar but have different pinout. The relay can take 20A on 14VDC so it is ideal for heater (by arhimed - Controllers
the 4 axis TB6560 driver board that is available on ebay for fairly small price (there are also variants without manual and without working video and without some cables that you get in "extras" version that cost 20+$ less !!) The DB25 interface (parport) is standard TTL in/out so you can attach it to arduino or any other mcu, and since the inputs are going trough schmidt (74hc14) it will work bby arhimed - Controllers
> * Documentation on the pinout of the DB25 ( > normally for the parallel port, but connected to > the arduino ) on the board is normally wrong, or > at least some of it is. A careful googling and/or > trial-and error will resolve this for you. Posting the pinout might save some of us hours of "trial&error" trying to locate proper pins ... I'm still unable to find the properby arhimed - Controllers
The major reason fan is there is to cool the object - not the peek, and for ABS you usually don't need any cooling at all. Thing is that netfabb is driving ABS hot (250C and higher) so with this you need to have fan on to cool the filament as it exists the nozzle (so you can have any ability to print over gaps) and side effect is that it cool the peek (a bit, not much, but looks like that's moreby arhimed - General
boarboar, do you have your fan mounted and running? Netfabb drives the hot end pretty hot (250+ for abs) so if you do not have your fan mounted and running the upper part of the hot end (PEEK tube) get's hot, and the transition zone extends and your filament gets frozen it the upper part of your extruder so much more force is needed to extrude it and basically - you don't get enough filament outby arhimed - General
Depending on the PLA best results are with heater over 200C, for e.g. I print PLA at 212Cby arhimed - General
btw, on the arm cortex m3, very interesting board it is in bit more expensive (80$) but comes with STM32F103RBT6 ARM 32 bit CORTEX M3™ mcu (128K Bytes Program Flash, 20K Bytes RAM, USB, CAN, x2 I2C, x2 ADC 12 bit, x3 UART, x2 SPI, x3 TIMERS, up to 72Mhz operation), the lcd (BW 84x48px PCF8544 compatible - aka nokia3310 spi screen) and IDC connector, USB mini connector, 3-axis accelerometer (tby arhimed - Next Wave Electronics Working Group
skeinforge can store SVG slice&dice can store PNGby arhimed - 3D Design tools
Dejane, sa malim zakasnjenjem (ne stizem bas sve), ja imam rapman kod kuce u beogradu, 2 mendela i u procesu sam pravljenja jednog "velikog" strapaby arhimed - Serbia, Belgrade, RepRap User Group
Here's another view Marcus. (btw there is FreeCAD for linux too) It looks like that in STP file there are no pulleys but that belt go only around the screws. IMHO if pulleys are used then they would guide the belts around the x carriage. bogdanby arhimed - General New Machines Topics
It would be very cool if ppl stop moving other ppl placemarks on that map but it's obviously too much to ask forby arhimed - General
Enrique, a feature request ... (I'm still trying to figure out python but getting pass "define the structure with white spaces" is not that easy) One of the nophead's movies on youtube show a nifty feature that I implement by adding the g-code manually to the file and I recon it would be easy for you to add to raft making... Thing is, before you start "drawing" the raft, you pause (with heater oby arhimed - RepRap Host
Enrique, Dear wizard, I love the new look and the new organization but I have to report a bug, the analyze plugin's miss the exit button (used to be in the lower right corner) and the 3d one cannot rotate around the axes? all best bogdanby arhimed - Skeinforge
Enrique, you are a wizard, thanks a bunch. The high infill per overlap I use for PP as it springs a lot so with very high overlap it actually come to a right place Check the pictures here: With ABS the original 0.1-0.2 is ok thanks again bogdanby arhimed - Skeinforge
Hey Enrique, Thanks a bunch for all the super cool new options you embedded into Skeinforge but I have to report another bug. I get this error trying to print the attached stl. STL parses ok from what I can c, and it is fixed in netfabb to be fully mainfold so no reason for it not to print properly. I attached also the used profile (but tried few other profiles also with exactly the same resuby arhimed - Skeinforge