Hello Everyone,

Fresh member, first post

Guess I'll do a short intro!

My 3D adventure began somewhere second half last year where I got myself a CR10 S PRO.
I quickly started upgrading this machine adding a bltouch, Z braces, Z rods sync, linear X rail, custom direct drive extruder etc. (Link to a video of the direct extruder: Click on me)

After hitting speed limitations due to the bed moving for the Y and also wanting to print bigger than 300x300
I stumbled upon CoreXY machines and decided to try and build one.

I got a frame together, added rails and tested the Z movement yesterday!

Since I've got good parts (meanwell 24v power supply, hotend etc.) on the CR10 S PRO I'll be taking that one apart for parts.
I'll also be using its heated bed for now since I want to cut costs for now and think about what kind of bed I want.

Eventually I'm aiming at 500x500x500 but I'll see how close I can get. (the frame is 3030 60cm on the 4 sides inside)

The fun part

I decided to get a Duet WiFi to power my creation since I read good things about it, liked the community and want to support Duet3D. You guys are doing great things!

I hope my Duet arrives tomorrow and hope to have it hooked up for testing somewhere the next couple of weeks.
I've read some documentation on configurating it but for a newbie it looks daunting! So I'll probably pop up here and there with questions on how I'm supposed to get it working

I look forward to being part of this community!

Going back to the doc https://docs.duet3d.com/User_manual/Connecting_hardware/Motors_connecting_external I must have thought the the CONN_LCD was only usable without the expansion board but it's just the paneldue that can't be used. Great

Edit: putting in the updated doc instead of duzoki.

Thanks @Phaedrux @dc42 @PaulHew I hooked up the board and managed to get the printer running.
The bltouch worked from the start, thanks!

Hi Everyone,

I'll be using this topic to keep the status of my corexy up to date including the testing and perhaps eventually make it opensource and put out a BOM.

Current state:

• Duet Wifi 2
• Duex 5
• 24V 21A meanwell psu
• 3 independent 47mm 5kg stepper for the Z with 1m tr8x8 rods
• 3 x 60cm linear rails for the Z mgn12h
• 2 x 60cm linear rails for the Y mgn12h
• 1 x 60cm linear rail for the X mgn 12h
• 2 x 47mm 5kg steppers for the X&Y
• 1 x 38mm stepper for the extruder
• MicroSwiss full metal hotend (for the CR10s pro)
• 2 gear extruder (from the CR10s pro) hacked so it mounts on my custom aly carriage plate
• custom alu carriage plate for direct drive
• GT2 pulley and belt system
• kinematic coupling (maxwell criterion) for the bed with 3030 extrusion on a m8 round head nut.

First prints were better than expected.
Here's a video of the auto bed leveling/tramming/z tilt (it's got some Duet advertising at the start )
https://www.reddit.com/r/3Dprinting/comments/fbw7q5/finally_got_true_abltramming_working_on_my_diy/

I managed to get it working.
For future reference:

Config.g

; Z-Probe
M307 H7 A-1 C-1 D-1                                     ; disable heater 7 on PWM channel for BLTouch
M558 P9 C"^zprobe.in" H5 F120 T6000 A10 R0.75 S0.02     ; set Z probe type to bltouch and the dive height + speeds
M950 S0 C"duex.pwm5"                                    ; create servo pin 0 for BLTouch on exp.heater7 --> duex.pwm5

Deployprobe.g

M280 P0 S10 ; duex deploy BLTouch

Retractprobe.g

M280 P0 S90 ; retract BLTouch

@Danal sounds plausible to why the error didn't occur anymore. I'll retry tomorrow with a cold bed and report back.

@o_lampe tha ks for the input! I'd be okay with soldering if it's not on an expensive board like the duet really not out of the water which drivers I'm wanting to get either. Why do you like one over the other? Is it heat?

Going back to the doc https://docs.duet3d.com/User_manual/Connecting_hardware/Motors_connecting_external I must have thought the the CONN_LCD was only usable without the expansion board but it's just the paneldue that can't be used. Great

Edit: putting in the updated doc instead of duzoki.

@engikeneer Thank you! I had not yet read about those! I did indeed find old posts for turning the duex5 into a 2 or even modding the ribbon and just removing 1 resistor or something but I didn't want to mess with the duex5.
I'll look further into the first option you mentioned as I don't use a paneldue, thanks!

Now I now what to look further into.
I'll probably get back with more questions later as I'm really not that good with these boards and related electronics. Without the awesome community and good docementation I wouldn't even have gotten past initial setup probably.

Now I need to figure out the drivers I want to use and what to buy.

Hi Everyone, Happy easter!
(If you don't feel like reading all it's summed up in the last paragraph )

I've been running a corexy printer gor a few years now using a duet 2 wifi and duex 5 for some extra steppers (currently only for 2 extra Z but planning for extra extruders) and other small stuff like humidity, extra temps etc.

I have two 24v power supplies on my printer, a meanwell a 750 for the bed and a 500 for the rest.

I was thinking of using the 48V that I have available to properly run ldo speedy's (42STH47-2504AC) for my X and Y but since the duet can only handle up to 25 I think the only way is to have external stepper drivers.

Is there a way that I can add external stepper drivers capable of handling 48V onto my current setup using both the 2 wifi and duex 5?
(My X and Y are still on the main board.)

All input welcome, thanks!

Kaj

I also did the same, documented the process: https://forum.duet3d.com/topic/14485/rrf3-bltouch-setup?_=1583394715553
I'm now using a duex5 though so no longer use that setup.

Is it set to the correct filament diameter on the slicer?

@Danal I did yeah, it went to phase 4, was cooling down for a while and later when I checked it had an error in phase 4.

@zapta The springs keep the kinematic coupling under constant pressure.

Hi Everyone,

I'll be using this topic to keep the status of my corexy up to date including the testing and perhaps eventually make it opensource and put out a BOM.

Current state:

• Duet Wifi 2
• Duex 5
• 24V 21A meanwell psu
• 3 independent 47mm 5kg stepper for the Z with 1m tr8x8 rods
• 3 x 60cm linear rails for the Z mgn12h
• 2 x 60cm linear rails for the Y mgn12h
• 1 x 60cm linear rail for the X mgn 12h
• 2 x 47mm 5kg steppers for the X&Y
• 1 x 38mm stepper for the extruder
• MicroSwiss full metal hotend (for the CR10s pro)
• 2 gear extruder (from the CR10s pro) hacked so it mounts on my custom aly carriage plate
• custom alu carriage plate for direct drive
• GT2 pulley and belt system
• kinematic coupling (maxwell criterion) for the bed with 3030 extrusion on a m8 round head nut.

First prints were better than expected.
Here's a video of the auto bed leveling/tramming/z tilt (it's got some Duet advertising at the start )
https://www.reddit.com/r/3Dprinting/comments/fbw7q5/finally_got_true_abltramming_working_on_my_diy/

@Danal I just retried with a cold bed and heated up to 70 without getting the error.
I'm printing now so I'll try again tomorrow after setting it back to 1