Da Vinci 1.0 Azteeg x5 WiFi Build (Page 8 of 13)

carl_m1968 wrote:

evanboothe wrote:

What are the best speeds to start with for those 3 speed options? Also I did that calculation again on the supplied link you posted above and got the same number as before 225.8 steps per mm

What microstepping value do you have the extruder enabled for? To be honest there is no need for any microstepping but if you are using it you need to be sure you are accounting for it. I have mine on my CT's set for 32 and steps per mm are 203. So yours are not too far off.

As for the speeds just them all for 35 as the high and 25 as the low. Again this is only PETG. ABS and PLA you will probably be able to get over 40mm/s.

this is all new to me.. where would I find out what I have enabled micro stepping wise? I placed the correct jumpers under the drivers when I first got the board that’s all I’ve done micro stepping wise.

carl_m1968 wrote:

evanboothe wrote:

this is all new to me.. where would I find out what I have enabled micro stepping wise? I placed the correct jumpers under the drivers when I first got the board that’s all I’ve done micro stepping wise.

How many jumpers did you put under each driver? All three?

all three

So the extruder doesn’t get calibrated down to 1/32 increments just the X, Y, and Z axis’s.

Wait so I did the calculation wrong?

140 was my value before the 100mm feed test and it only extruded 62mm out of 100

Nope  you did the calculations correctly. I plugged in the Under extrusion value of 38

so 226 would be the correct value.
Sorry for any confusion caused.

You are probably just experiencing heat soak. Is the fan for the fins on the extruder running? It should run all the time. It is not a layer fan. It keeps heat from creeping up the heat break and moving into the feed throat.

As long as you get 100 most of the time it should be okay since in normal conditions as soon as the hotend reaches temp the print and extrusion starts.

So now that you got the extruder working you need to download or make a calibration cube of a known dimension. They are usually 20mm or 30mm cubed it does not really matter.

Once you print it measure it and see how close it is to the desired dimension ans we can go on to calibrate the steps per mm on the motors to get the printed dimensions to match the desired dimensions.

evanboothe wrote:

carl_m1968 wrote:

You are probably just experiencing heat soak. Is the fan for the fins on the extruder running? It should run all the time. It is not a layer fan. It keeps heat from creeping up the heat break and moving into the feed throat.

As long as you get 100 most of the time it should be okay since in normal conditions as soon as the hotend reaches temp the print and extrusion starts.

So now that you got the extruder working you need to download or make a calibration cube of a known dimension. They are usually 20mm or 30mm cubed it does not really matter.

Once you print it measure it and see how close it is to the desired dimension ans we can go on to calibrate the steps per mm on the motors to get the printed dimensions to match the desired dimensions.

Fan is on at 100 percent, was thinning on my way to work is it possible the polarity is wrong on the fan maybe it’s just moving air the wrong way

I’ll post a picture later tonight of how it is mounted. What would be the fix if everything is mounted ok and it’s still heat soaking

If anything it is mounted the wrong way then. If the polarity is wrong the fan will not run. They don't work like a normal DC motor. They are in fact a hybrid stepper themselves with built in drivers so they can be speed controlled through PWM.

evanboothe wrote:

carl_m1968 wrote:

I’ll post a picture later tonight of how it is mounted. What would be the fix if everything is mounted ok and it’s still heat soaking

If anything it is mounted the wrong way then. If the polarity is wrong the fan will not run. They don't work like a normal DC motor. They are in fact a hybrid stepper themselves with built in drivers so they can be speed controlled through PWM.

Don't let it sit so long without printing. Seriously. In any printer if filament sits too long in the heatblock at temp it can harden and cause clogs. It can also cause your issue. What should happen unless you preheat is that when you hit print the bed will heat, then the extruder will heat. When it reaches temp the print will begin.

If you preheat like some do then it is a good idea to keep an eye on the printer or know about how long it takes to get to temp and start the print as soon as possible. Your issue and a few others is why it is good to add a skirt of a few lines a few mm from the print. This purges any hardening filament and gets a good flow going before the actual print starts.

Improper assembly, ensure you aren’t applying any twisting force on the break during tightening of the nozzle.

Absolutely
Read and re-read then be careful.  It doesn’t take a lot of force to tighten properly.  During the heat tightening process you’ll stop just as you feel the nozzle squeak.  If that makes sense