if you are using ramps (motherboard == 33) then current settings for motor are on the ramps boards pots.. read here on how to do this and acceleration settings are in the config.hby jamesdanielv - General
Protoprinter whatever you want to do go for it. dlp is fairly new for community, also laser sintering, or (fff )fuse filament fabrication improvements. Personally i think fff has some development life in it. build in smoothing processes, color, and ability in near future to build structures without supports >45 degrees.by jamesdanielv - General
did this issue get resolved and how did you fix it?by jamesdanielv - General
if you do not yet have this issue resolved upload your firmware as a zip file and someone will likely take a look at where the issues are, for example not disabling ss for spi deviceby jamesdanielv - General
i found the arduino reference page descriptive enough to be of some help. also in arduino ide there is a set of examples under file menu. the link is included aboveby jamesdanielv - General
also i sent the data sheet for the 6675 chip. you can look at that for pinouts and additional circuitry required. I like how you now have posted specific questions towards the compiling errors. if you do get the help you need about it please post the answers into this forum topic as well. it seems we need to update the firmware to work easier with max6675 and ultimakerby jamesdanielv - General
is there any way you would consider just using a thermister? I feel that this all may be too much for you. I provided all the schematic information you should need. if you do not understand it, then wait a bit for using the max6675. if you need to define the pins then look at the code involved for the max6675, add those pins, and define them in the ultimaker board section of marlin. If someone wby jamesdanielv - General
look at the exp2 on the ultimaker board. you may not be able to use lcd. but i think it has been fixed connect the coresponding pins miso,mosi,clk,vcc, and gnd. cs on the chip is chip select do as the documentation says if you have a cs lead. i think it should be driven low. or if the software selects it then connect to ss. this may be part of the original issue with the lcd display because oby jamesdanielv - General
3 leads to ultimaker pcb are gnd, 5v,sig. diagram included. normally the 3 leads hook up to temp1 the other end of wires to the tc1 board you need to not have r23 installed. it should not be installed by default. only use if you have a thermister. also here is the data sheet for the 597 here is the data sheet for the max6675 they are completely different, as the ad597 is an op amp circuitby jamesdanielv - General
does this troubleshooting help at all?by jamesdanielv - General
there needs to be a 4.7k resistor installed for thermister. i don't think they are installed by default . there is a setting change that is needed in firmware for thermal couple or thermister. there is some documentation about length and something about a short causing the temp sensor to read internal temp on chip rather than thru the probe.by jamesdanielv - General
i still think there will be issues in using plasma and laser cutting equipment, but likely only at higher speeds. signal strength or pwm, and angle velocity for arcs need rapid calculations that so far only have been mastered by dedicated parallel dsp processors that are >400$ but well worth the cost. they often use HPGL language, and have a lot of internal memory. for example with laser andby jamesdanielv - General
so the issue is that your custom machines are using a printer firmware for non printing tasks, but needs to use a cnc code code? in that case the answer is simple. don't use a printer firmware designed for printing. use grbl. firmware link perhaps i've overlooked something, either way let me know. the reprap marlin firmware has been made specific for 3d printing. if the issue is speed, thenby jamesdanielv - General
ok it looks like marlin does process g0, g1 codes the same from Marlin_main.cpp, but with using g0 i do not need to include feedrate. the difference could be how my host program handles it. that should not effect process of commands of the general use of the machine however, as within reason x/y axis should be the same speed. are you sending z commands all the time? for some machine setups inby jamesdanielv - General
G20 inches measures in inches and standard is inches per minute G21 mm measures in mm/s and the standard is mm a second does this help, if same feed rate numbers are used for inches, machine would slow down by 2/3 as the timing is in minutes my guess is the limits hard-coded in mm for max feedrate, are limiting machine speed either way. are you typing in G1 or G0 at beginning of code, G0 isby jamesdanielv - General
if you are going to use aluminum rods then use nylon bushings anything else will wear down the rods in a mater of a few prints. even better may be to use stainless steel rodby jamesdanielv - General
mainly turn off lift feature for retraction, slow down infill and perimiter to 10 or maybe 15mm a second max. until direct cooling from above. you may have best results from printing with pla at lowest temp possible, however this will reduce max speed as feedstock will not move through as smoothly, so it is a trade off of sorts. pla fan cooling on the pla is critical for stability. until youby jamesdanielv - General
you need a fan shroud facing pla, or print a lot slower. this is what is likely is causing the print to lift on one side, causing the nozzle head crash you speak of. ggherbaz may be right,I would view it as to print slower. also it looks like you are using 3mm feedstock if so then 1.5mm retraction should be suffice, if it is 1.75mm then 5mm is correct amount of retraction. i suspect you havby jamesdanielv - General
ok, there may also be some mechanical issues to resolve. can you provide a picture of your machine? also do you have the belts tight? have you printed out a belt tentioner? is there any wobble in you nozzle and carriage? are there any wires rubbing up against the carriage rods or bushings? if not then proceed to lower flow rate, and possibly change to cura software, at the very least change slby jamesdanielv - General
yes this issue is the filament that is laid down is flexing. this is from printing faster than the pla can cool. it will bend upward and out of place unless it is cooled between layers because of other side of print getting pressure from the nozzle and motion of machine. it also seems to happen when less material is placed down right? this allows less cooling time. you can either put a fan on toby jamesdanielv - General
is the board set correctly in firmware? are you using ramps?by jamesdanielv - General
the issue could be resolved by decreasing print speed for layer adhesion, and lowering the z height. lowering the z height would be ideal, but your back pressure will increase, so for first layer you will need either a higher temp, or to print slower so the feedstock does not skip. and if motor current is turned down so it skips instead of feed stock, then current may have been adjusted too low.by jamesdanielv - General
Werner you can find a rambo version ready to go for delta except you machines dimensions, here you will want to change settings in configuration.h. these displays are setup by default for repetier host, and it includes u8glib_ex.h library. i can only assume it is for RepRapDiscount Full Graphic Smart Controller which is 11. there may be some pin out differences, but from what i gather it hasby jamesdanielv - General
berry bot, this may or may not help with your micro pauses at high speed ' usually a fair argument is made for teacup firmware as well, i cant argue that that may be a good bet as well, although i don't think there is a delta version that works yet and converts kinematic moves. the above links reduces the time for sqrt root calculation by marlin firmware. since this is several versions old,by jamesdanielv - General
openscad is a good free cad application, it also converts files to stl. from there you would need a slicer application that converts the 3d mesh from stl to sliced data in gcode. for simplicity i would recommend repetier hostby jamesdanielv - General
show us a picture that clarifies the type of banding you have. if it is sinusoidal waves bumping throughout the print then it is z height mismatch from the z step movement, if it is only where there is heavy infill then it is flow control and speed of extruder being exceeded, if the banding is up/down and bands left to right and only where the infill intersects then the flow is too high. try reby jamesdanielv - General
did you try the ready to run versions here (actually i see that you have) which should be included in the ready to run downloads. my bet is you need the py serial library what version of python have you downloaded? are you using the installer? i would try 2.7.8by jamesdanielv - General
friction. if any angle is greater than 90deg it will be hard to push through. i would keep cable as short as possible, also very important that the first half of cable being fed into has a notch in it as a guide, and 3 inch tape around it to keep that part stiff and strait. look at images of bowden cables produced by ultimaker. then also consider switching to a knarled bolt as it provides moreby jamesdanielv - General
generally it is a good idea to clear out at least 10% larger than the tool bit size, and to clear it out with a Conventional milling approach. slow feed rate is a must if cutting through an object that would otherwise warp. then other things to think about are tool bit speed as to ensure the material is not overheated, but it is fast enough that the part does not become loaded. then also youby jamesdanielv - General
you could also be over-tightening. if bolt is over-tight then the round feed stock becomes square, and is very hard to push thru round stainless steal.by jamesdanielv - General