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this shows reprap gcode. M108 Sxxx was used in the old days to set extrusion speed. i don't know if it is used that much anymore, or if modern firmware does testing on it. it was used to set the PWM duty cycle of the pulses to the DC motor to average out power under load to motor. the motor windings would average out the power of the DC pulses. So your system might need to be able to do somethin
by
jamesdanielv
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General
did you install all the font files? the /font folder might not be included. i do not know much about the ender 5. i typed in ender 5 github into google, might be hepful
by
jamesdanielv
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General
just clarifying what i see in the comments above.
the old drivers may run at a constant voltage that was just set too high.. current is controlled by the resistance change of the LC circuit (coil and driver capacitance) and as motor cycles faster its resistance rises, and its current is controlled by a higher voltage to maintain power as its resistance changes. what more than likely happed was v
by
jamesdanielv
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Safety & Best Practices
a possible buzz kill here.
this is my own opinion, but i dont think pogo pins are a solution for a moving extruder.
i think press fit connectors are a better solution, especially for something that moves around so much. any misalignment or jolt can cause arcing and do a lot of stress on electronics from micro disconnects or alignment shorts to other pins.
unfortunately i do not have a perfect
by
jamesdanielv
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General
it is possible like stated earlier that the board was killed.
have you verified with a volt meter that the 5v out pin is still producing 5v. (5v output pin on the Arduino or Arduino mega board, or equivalent.)
often the cloned arduino boards have poor 5v regulators. if this is the case then an external lm7805 should be sufficient, but it might be cheaper and less headache to buy another board.
by
jamesdanielv
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General
it is possible current is set to high. the drivers have a. built in over temp circuit that powers down the device until it cools off.
this is only one of many issues that are possible. an indicator of overheating is often random pausing of stepper driver.
is there a way to adjust driver current for the extruder?
by
jamesdanielv
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General
thanks for that information, what happens if you lower the driver current to 60%, and then lower it as far as it can go and still print at correct speeds? its just a thing to try.
it could also be a side effect of a driver that can not deliver the current it is set for, from peak vs average current , and from thinner than spec traces, or a driver that is not designed to handle the current draw
by
jamesdanielv
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General
this issue is probably more visible because of what appears to be under extrusion.
but to be sure:
have you printed a xyz cube to test x,y,z size, and is it within your desired specs?
is your machine sturdy on the x and y rails? any slop or play. is the belt tight?
there is mention of an ender 3 board, but what printer is this from, does it have a sturdy frame? ( i didn't see a printer or model
by
jamesdanielv
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General
if the 3 wheels are placed properly the rail will be constrained to only direction in 1 axis. there is nothing that specifies only to use 3 it just is all that is normally required,
and if unworn out the three 3 should constrain the system as accurate as 4 would as the main deviation of the axis would come from flection and the run out of the bearings so i would minimize the diameter as much as
by
jamesdanielv
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General
stuff related to printrbot
by
jamesdanielv
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Developers
yup with insulation and using a thick sheet of aluminum i think you'll be fine putting it about anywhere. there will be variance across the plate. prob best position would be center underneath, prob no need to drill since heat is coming from the silicon pad.but if you need to to mount it so it wont fall out about anywhere inside the aluminum should pretty much be at about temp equilibrium if it i
by
jamesdanielv
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General
thanks for the info so far. i hope to get enough to show a list or a chart. don't be scared, i'm just looking for a range. some people have really fast heaters, but generally it is 12v or 24v.
some people have quicker heat up times using insulation. this is also good info. thanks for those who have contributed times and heater setups and printer models so far.
by
jamesdanielv
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General
what is the pin out of the sensor? what do you have each pin going too? it may be possible you have input with pull up and vcc of sensor reversed. but i'm just guessing. something probably isn't wired up correctly.
do you have a volt meter, and is the sensor color wired to identify it. unplug machine and do a continuity test on volt meter. main gnd to sensor gnd pin.
by
jamesdanielv
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General
the resolution detail normally is higher on a laser scanner than a photo collections based 3d calculated scanner. this is because a direct reference to distance is calculated from shape of laser. the shape is based on difference and this is calculated as if it is a hypotenuse of a triangle.
probably the best type of 3d scanner is light scatter where different sets of lines are projected on the im
by
jamesdanielv
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General
i have a cyclops and find that using 50ma lasers helps with scan, using more than one laser on each side can help but it is hard to align to same line. as long as the light is not at the exact same angle it does not cause interference, and even if it is the same angle the distance of the interference would be smaller than visible by the eye and the line would average out (brighter and dimmer) eve
by
jamesdanielv
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General
can you post your Configuration.h and Configuration_adv.h file as well as pins.h files?
there are a lot of versions of marlin, i dont see a schematic for board. does the fan turn on even when you press board reset? in this case it possibly is wired to board to save a i/o pin on board. if fan stops when reset is pressed then it uses a i/o pin.
so find out if holding reset pin on board if fan st
by
jamesdanielv
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General
my Rostock max is my fastest heat-up bed machine. it gets to 70deg c in about 5min.
i was told that some machines were a lot faster at bed heat-up to temp. i find it hard to believe. i was wondering what the average bed heat up is for various machines.
what i was curious about times for other machines in the last few years. just checking if 5min is about average.
if people can post type of mach
by
jamesdanielv
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General
link to provider that lists whats in the compound https://e3d-online.com/thermal-compound-paste
it has:
Silicone Compounds 50%
Compounds of carbon: 20%
Metal Oxide Compounds: 30%
i did a search and found StarTech.com 1.5g Metal OxIDE
has metal oxide in it. i don't know how much percentage of each others it has. it is designed for cpu heat sinks.
by
jamesdanielv
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General
for most purposes many will not see improvement in print performance. better stepper drivers however can prevent noisy prints. look for trinamic drivers.
in some cases you might want to downgrade back to 8bit. i disagree that support is less for 8bit. i think 32 bit is vendor specific to as who supports it. anything of any subject non standard will more than likely go unanswered no matter what
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jamesdanielv
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General
link works for me as well,,,
i'm still waiting for 3d printed houses to be an option in my neighborhood.
by
jamesdanielv
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General
its not advanced by any means, it does the basics its called open scad.
it is also a command driven tool. the custom setups such as curves and chamfers and bevels need to be done manually. as coded in with for loops or shapes in boolean operations
fusion360 does have a lot of time saving features, however i worry that they will lock it down to the point where we all will eventually need to pay.
by
jamesdanielv
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General
"Is there any body know how to get a consistent print speed that can be always meet my setting value?"
this is a loaded question. i'm going to assume you are talking about printer settings as it relates to acceleration.
is there a specific reason you want circles and non lines to be at 100mm/s ?
this seems to violate the tool path acceleration rules in firmware.
you can increase firmware ac
by
jamesdanielv
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General
sigh.. one of those types that isn't really asking for help;
but still here we go...
in this case, you might want to try running line segments versus arc segments and see the performance differences.
if using in marlin firmware you might need to enable it to have it read arc commands.
gcode is not specific to 8 bit or 32 bit. that just seems silly.
but firmware and certain features enabled i
by
jamesdanielv
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General
i looked at gcode.
and if the i- j- archs are important, can you change the code to just use the line segments? it looks like i,j normally are offsets for an arch. they would not be processed by reprap gcodes as defined.
since i,j are not understood they would generate an error, and possibly cause commands to process at slowest speed possible. also F for feedrate is not defined per line. this al
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jamesdanielv
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General
this file puts print routines into flash, freeing up bytes so it can work on uno
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jamesdanielv
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Experimental
gcode is the hidden back end. A true user of 3d printing will always need to know some gcode to make some changes
faster and easier or to switch code or calibration for a large group of machines. but todays lines of codes are quite complex in some situations, so knowing what to look for is important.
there are several books out about gcode, but you could learn from reading the code previewer of
by
jamesdanielv
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General
this attachment is of a hand drawing pinout of cables. it is a draft, and needs further verification. for example when this project is finished.
by
jamesdanielv
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Developers
this is just a place holder for images and documents relating to printrbotmetalpro
by
jamesdanielv
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Developers
proper cooling should be done for any controller used.
even with ramps it is a good idea for a fan to be used if enclosed, and it is a good practice to have active cooling of parts anyway.
ramps does have one benefit that many other controllers do not,
that is the ability to replace parts, rather than the entire board when a failure occurs.
and this often does at some point in time usually
by
jamesdanielv
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General
not much info to go on here. it would be better seeing the system that part came off of with resolution to show mechanics, and not just the part.
also if this is a raft layer or not?
is this a core x-y, (delta usually not cartesian), what motion system? cartesian does not specifically state its motion system just the direction of the mechanics
from info provided:
this seems to be a mechanical
by
jamesdanielv
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General
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