Lerdge 32 bit mainboard on giant delta - No firmware compilation required!

Two things happened that I’ve wanted for a while. An enormous delta 3D printer to tinker with, and trying out Lerdge mainboards, which are configured 100% using a graphical touch screen interface.

Overall my experience with Lerdge products has been impressive. 95% of the time the online documentation was sufficient to set up the printer. Parts like the Z offset confused me at first but now I understand it, the approach makes sense. The mainboards and firmware feel mature and well developed. Firmware updates appear to be fairly regular.

UPDATE: I've fitted the power module. Most of the wiring could be done inside the case for the PSU on this printer, with two DC cables running from the relay module to the mainboard. This allows you to turn off the power automatically after a print and also adds power loss recovery. All working well.

The Lerdge products in this video were provided free of charge for the purposes of making this guide. All opinions expressed are my own.

The Tevo Little Monster was acquired in a trade with a friend. Parts like the Duet 2 Wifi and twin Bondtech extruders will be going back to the original owner, however I’ll be fitting my own Bondtech BMG anyway, along with a Wham am bed which I have just ordered.

0:00 Introduction
1:18 Tevo Little Monster baseline
3:21 Lerdge overview & buyer’s guide
7:09 Physical installation
9:36 Firmware update & printer configuration
12:11 TMC stepper drivers in UART mode
13:23 BLtouch / ABL
15:44 Printing
16:37 Filament runout
17:31 USB connection, Octoprint, Wifi module
19:55 Linear advance
20:26 Thermal runaway test
20:34 RGB LEDs
21:17 Dual extrusion
21:43 Power control module
22:16 Conclusion

Models featured in this video

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[TeachingTech]

Since it's coming up a bit and not every one reads the description: This printer was traded with a friend but didn't include the Duet Wifi board. I'm a fan of Duet and RepRapFirmware, I run it on two of my printers. My aim is to learn as many new things as possible and have multiple hardware/firmware combinations. It will keep more informed and prevent bias.
Some people are seriously upset that I changed away from their favourite combo of TLM and Duet. The best solution is the one that works for you. You should happy with how your printer is running as I am mine, as should someone else running Marlin/Klipper/Smoothieware. Variety is the spice of life.

[mturnali]

I am using 3 Lerdge K boards with all accessories on corexy and cartesian machines. They work flawlessly. I am very happy that finally a good 3d printering channel took notice of this board and made a review of it

[tcker]

So obviously Lerdge did their homework and reworked their whole stuff properly! I remember alot of ppl had horrific trouble dealin with their stuff about 2 years ago, why I haven't got one of their boards. This seems now very Handy to use, well done!

[charlesbeshaw]

Michael, Keep up the good work reviewing tech. Upgrade or downgrade is not relevant. It's all about the function, capability, usability for any particular person. I watch, I learn, I compare and then decide what hardware, software works for me. And I don't call someone stupid for choosing something else.

[henrybrown]

Thank you Michael, there doesn't seem to be many in use in the UK! After two BTT SKR 1.4 Turbo boards not working from new for different reasons I wanted some assurance that the Lerdge X would be ok, this has given me that - I'll watch it again and make my final decision.

[spikekent]

Great video Michael. Looks like a fantastic board/firmware combo. I love the setup/config interface options. While I do love Marlin, I would like to see it move away from having to compile after changes, if it's even possible.

[shaneconroy]

I’ve got 3 Lerdge x boards running on my printers, love them tbf. As you said I too found the idea of messing with firmware config a bit daunting as a newbie where as this Lerdge setup makes calibration of your printers so much easier, instant at the machine. Tempted with the K version now for running the stepper drivers in more silent mode but can’t complain about the x boards as they are tbh. Great Video, well explained 👍🏻

[MartinPaoloni]

Interesting board! Does not seem expensive at all to be honest for what it provides. Excellent video as well! 👍

[radicalreel]

I'm a big Lerdge fan. I don't understand how anyone can still prefer the marlin struggle. Nice to see that you're seeming to like it too and I'm looking forward for more Lerdge stuff on your channel.

[ncbob]

Excellent video, I didn't even know about these boards. I've gone ahead and ordered one to replace a ramps board on an old printer and see how I like it.

[DPrintingNerd]

FANTASTIC video on this, dude. I so miss my Tevo Little Monster. I had one a long while back, and ended up donating it to a local maker space.

[BeefIngot]

9:11 I have to wonder if you couldnt just print out the molex female casing

[ricardoluiztoledo]

Good job Maker as always very good your videos

[BradCozine]

3:14 Michael: "This Benchy looks OK."
Me: WHHHHAAAAT? :)

[henrymach]

Makes you wonder why the Duet boards are so expensive

[avejst]

Interesting software/Firmware
Great guide
Thanks for sharing :-)

[ItsAlreadyRendered]

I love this video. The board does seem pretty easy to set up and I could probably implement easily with my Anycubic Predator which is also a large format delta printer.

[moth.monster]

This honestly looks amazing, i'm tempted to pick one up for my Ender 3.

[Chrissi]

@Teaching Tech This approach is great and well worth the money, but how did you set up the Delta Calibration? G33 (Delta Auto Calibration) doesnt work with a probe that has an offset, so did you do it manually? How so? A video on that would be nice (since I've tried and failed).

[corlissmedia.]

Hopefully, what you recommended two years ago is still true today. I bought it based on your pitch, and I hope things go well once it arrives.