Posts made by hackinistrator

for low voltage high current dc powered bed you can also use external high power mosfet with a heatsink . usually will be cheaper then ssr .

@T3P3Tony thanks allot.
i'll contact local distributor tomorrow to check if they don't have the never ver. for sure .if not i'll contact you.

@T3P3Tony
i wanted to buy from the duet site as i see the never ver. of the 6hc board is in stock there. Local retailer has only older versions .

i know its an old topic but i'm also trying to log in to duet shop with same issue as op .
do i need to create different account ?
(forgot password button does nothing)

@T3P3Tony
i can read data sent on the network via external software (while it is connected to industrial dnet controller) from yaskawa that is used to configure the driver and connects to a laptop via usb. it also allows to monitor real time torque , rpm etc .

my current roadblock is the handshake . i can set the baud rate (max is 500k and not 1mb like duet) and address on the driver , but i need a network scanner , or "master" to make the handshake .

hello guys.
i have a complete set of servo motor ,encoder and driver from yaskawa - servopack sigma 3 series . more details here:
https://www.yaskawa.com/products/motion/sigma-5-servo-products

is there any chance to "map" the servo drive on duet(3) ? i know duet is can fd and its a bit different to dnet .
i want to use the motor as a spindle , and need only simple control , like set rpm and spin . i can read the data that is sent to the unit to make it spin , but so far i'm unsuccessful with somehow connecting the unit to a dnet "master" .i tried searching if anybody done this with arduino without success .

any other suggestions for devicenet control (on the cheap) are welcome .

did you try with R value in m307 at 0.001?
also , maybe your heater never reaches the target temp .

i liked the slicer , it used to be the best one around .
the company is awful though .
they didn't touch v4 for years , not even bug fixes .
they delete posts on their forum and now they want 50$ for an upgrade .
I'll pass.

with such high current on mains i think its also important to buy ssr with zero cross trigger type.

Definitely could be. I double checked with an IR thermometer and got ~5°c off the printer's reading (which is good for an unknown emissivity, I'd say...). Can't find my multimeter's thermocouple at the moment but I will double check it.
However I think there is a possibility that the readings are accurate and the cause for the different behavior might be:

• High temperature inside the chamber (4 of the 6 walls are double aluminum panels with an air gap between them for better insulation, and the remaining doors are thick glass panels)
• Reflective aluminum walls bouncing the IR radiation from the oversized bed back to part to be absorbed.

i suggest you measure the bed temp with a thermocouple + multimeter . some of the parts look completely melted (way higher then 100c) . my chamber temp is higher then 50c , its around 60 .at work i have stratasys printer thats prints abs with 90c chamber and nothing like that is happening .
your bed is huge , maybe the heat is uneven . also its worth checking the nozzle temp with external measurement

that's strange .
i have both esun ABS+ and polymaker ASA.
i use much higher bed temp , around 120-130c and never had this effect .
maybe your bed temp readings are way off .

@rexx it has nothing to do with mains freq . its the pwm switching freq .
heated beds and chamber heaters that are powered by mains usually use low switching freq , around 10hz .
also it will able you to see what's actually going on (led lights on when out on) .
i don't know what type of ssr you are using , some of them can't work at high freq , and some can . default freq is 250hz if you don't use the q parameter .

add Q parameter to m950 to lower the pwm freq .

if you ran the printer for a year , probable cause might be breakage inside the extruder motor wires due to repetitive flex of the wires .
i think its best to change the cables , they're cheap.

its very unlikely that its a power supply issue .
did those motors ever work ?
i ran nema23 with 24v supply without any issues

duet3 can be modified to run at higher voltages , if you're willing to go that route.

i think its software config issue .
something happens during deceleration .
when you disabled input shaping in start gcode with :

M593 P"none" F46.0

i don't know what's going to happen here .
try to change it to

M593 P"none"

that's allot of "something" you're moving there .
did you consider leadscrews ?
at what voltage are you running the motors?

so let me get this straight , just to move your axis you need 2NM , which is close to the rated max holding torque of the motor .
while changing direction the torque needed might be 10 times more , depends on your max speed , accel and jerk setting.

i'm 90% sure its your bed heat cycle .
try to print without heating the bed .

i guess prusa learned from their mistake with the dual drive gear . Its causing more issues then its supposed to solve .
I agree that 2 idler wheels will probably cause issues with flexible filaments , maybe there is something i don't see , don't know .