Controller for my larg format 3D printer

bernardomattiucci

We have finally come to the end.
We bought the electronics (from the Italian dealer) and it arrived yesterday morning.

Before moving on to the assembly, however, I wanted to create a wiring diagram of the connections, to be sure there are no surprises.

I would like to know from you if it is correct or if there is any error.

Then I have questions:

12 volt 30 Amp or 24 volt 15 Amp power supply?
Is it possible to install the electronics and relative display on a "console" external to the printer and connected to it with a cable of about 2 meters? I mean ... can the length of the connections affect the correct operation of the printer?

Thank you
Bernard

fcwilt

@bernardomattiucci said in Controller for my larg format 3D printer:

I would like to know from you if it is correct or if there is any error.

Just for your information it is perfectly feasible to have multiple Z endstops.

On my printer I have 3 Z steppers each with their own endstop.

When homing using the endstops the firmware runs each Z stepper until it's associated endstop is activated.

BUT I also have a Z probe which I can (and do) use with Auto Bed Leveling (ABL) to insure the bed is level as possible.

Now it may be that I have the Z probe configured wrong but I can home Z much faster using the endstops than I can if I configure things to home Z with the Z probe.

Frederick

fcwilt

I forgot to mention that with firmware v3.2.0 there is a problem with multiple endstops that occurs under certain circumstances.

I use v3.1.1 and it works just fine.

Frederick

bernardomattiucci

@fcwilt

Thanks so much.
Beautiful ... 4 Z limit switches, at the moment, are ideal.
I have to connect them to the E2, E3, E4 and E5 inputs of the Duex5, right?

Correct?

fcwilt

@fcwilt said in Controller for my larg format 3D printer:

I forgot to mention that with firmware v3.2.0 there is a problem with multiple endstops that occurs under certain circumstances.

I use v3.1.1 and it works just fine.

Frederick

I also forgot to mention that the cause of the problem with v3.2.0 has been found and a fix is being devised.

Frederick

fcwilt

@bernardomattiucci said in Controller for my larg format 3D printer:

@fcwilt
Thanks so much.
Beautiful ... 4 Z limit switches, at the moment, are ideal.
I have to connect them to the E2, E3, E4 and E5 inputs of the Duex5, right?

This is my configuration command for my 3 Z endstops sensors...

M574 Z1 S1 P"!duex.e2stop + !duex.e3stop + !duex.e4stop"

Yours would look like...

M574 Z1 S1 P"!duex.e2stop + !duex.e3stop + !duex.e4stop + !duex.e5stop"

BUT you may or may not need the ! character. It depends on your actual endstop sensors. If you find that the firmware reports the endstop sensors are activated when they are not then add/remove the ! character as needed to achieve the desired behavior.

Frederick

dc42

@fcwilt said in Controller for my larg format 3D printer:

I forgot to mention that with firmware v3.2.0 there is a problem with multiple endstops that occurs under certain circumstances.

I use v3.1.1 and it works just fine.

Frederick

That issue is now fixed. The fix will be in the 3.2.2 release.

fcwilt

@dc42 said in Controller for my larg format 3D printer:

That issue is now fixed. The fix will be in the 3.2.2 release.

I would nominate you for a Nobel Prize if I knew how.

Thanks.

Frederick

bernardomattiucci

@dc42

Please:

I have two questions:

12 volt 30 Amp or 24 volt 15 Amp power supply?
Is it possible to install the electronics and relative display on a "console" external to the printer and connected to it with a cable of about 2 meters? I mean ... can the length of the connections affect the correct operation of the printer?

Thank you
Bernardo

Phaedrux

@bernardomattiucci said in Controller for my larg format 3D printer:

can the length of the connections affect the correct operation of the printer?

Yes there are going to be some distance limits. It might be a better idea to have the electronics on the printer itself and then use the network to interface with the Duet. Then your "console" just needs to be a computer device with a web browser.

@bernardomattiucci said in Controller for my larg format 3D printer:

12 volt 30 Amp or 24 volt 15 Amp power supply?

24v is preferable for a number of reasons, but your heaters and fans must be compatible. A buck converter can be used to provide 12v for fans at least.