Ld-002h Firmware Update

[Brigitta Martini]

LD002R originally comes with black tape and some times it may be hard to remove. Follow this youtube link to learn how to get the screen out from the machine. If your screen too tightly glue to the machine, you may use Hot Gun or Hair Dryer to heat up and slowly take the screen off the machine.

Since the screen has been raised around 2mm, the limit switch must change so it will detect early otherwise it will crush on to the screen. the adapter mod must be printed in black otherwise the optical limit switch will not detect the trigger.

Thankfully, ChituSystem has pre-compiled a firmware that dedicated for this case

Dropbox Link ChiTu L V3 for DXQ608 Firmware

You only need to update the.CBD file and.SH4 file.

Since LD-002R is using 3.5 Inch Screen, do select the bin file contain name 3.5 inch screen and flash.

In this case:

Problem after upgrade. That worked but then Chitubox went to 1.9 and the machine will not read the new format. used the updated firm where and now it prints long lines and nothing else. I used the LD002r upgrade. should I use the 002H because I upgraded the screen?

You may have the Pj3d608v3 instead of the DXQ608-X04. They have apparently swapped to this new screen for the upgrade kits. Check the marking on the ribbon up by the screen. If so, download firmware from this link. -qqnfUd4SyQY6aH42UTl7hkeceao0XSX

Use the files in V3-v443-PJ-6.08-2k.zip

Resin 3D Printing has come a long way in such a short time. Devices that used to cost thousands and not really available for consumers are now available and you can pick up a decent enough SLA resin printer for around $100/130.

Certain types of printer have firmware that is outdated (but not all) and does not provide the new features that are present in ChituBox Basic 1.9. The new features include Two Stage Motion Control (TSMC) plus a wait/rest time feature. There has been some controversy around the new version of Chitubox because of some issues with community developers.

TSMC is so that there is a slower time when peeling your print from the FEP sheet then a faster time to raise to the top then as it goes back down it slows down again to give you more stable prints and in some cases faster prints. Anyway if you want to know the details you can to the ChituBox Official Website for all the info.

Before i go into anything i have to give credit to u/Lissanro on the Voxelabs Proxima subreddit for this guide as he was the one to work out that the Proxima was just a Creality LD-002H in disguise so thanks to him. He wrote a really good guide on how to do the firmware upgrade and the reasons for doing so.

The Voxelab Proxima is the printer i have and will be using for this mod. Most resin 3D printers use some form of Chitu Board. Just open it up and have a look to see what model you have. You may not need to update but if your printer manufacturer has not released any updates recently you will likely need to use firmware from a different printer brand, In my case I will be using the Creality LD-002H firmware version 4.4.3. You can use this firmware as well just make sure you have a copy of the original firmware in case you want to change back.

If for any reason you need to or want to go back to stock firmware here is the official firmware files for the Proxima -Proxima-Firmware-20-11-2021.zip as they do not currently provide them on the website. Reverting to stock is easy just flash the files in the right order there is an image with full instructions inside the zip. The firmware is also provided by Lissandro over on the Voxelabs subreddit.

In the terminal, on the Raspberry Pi type the commands below. We are going to download a script that will set up the Raspberry Pi for us and enable the USB-OTG functionality so the printer can see the Pi as a USB stick.

There are two ways this can be done, or should i say you can use two types of Pi to control the printer but the Raspberry Pi Zero W while it is possible to use it is not really recommended because it is so slow. if you have a Raspberry Pi Zero W 2 that is ideal and will work well using the exact same process and wiring.

Here you need to put a piece of tape over the 5v pin as shown. This is to avoid the printer powering the Pi. If the printer powers the Pi through the USB-OTG port you could cause problems and even kill your Pi.

The method with the Raspberry Pi Zero is almost exactly the same. The only difference is that you do not need to power the Pi because you can supply power using the normal micro USB port and the other micro USB port is for the USB-OTG.

Make sure that when you connect the USB cable to the printer that the cable is capable of data and power not just power. Not all USB cables are the same, in this case you need a cable that enables data for the USB-OTG to work.

Download WinSCP if you are using Windows. If you are using Linux or Mac you likely know how to connect through the terminal already. Once you have opened WinSCP enter the IP, user and password for the Pi and click connect.

Now we are done and you can get on to printing remotely. This mod is not only functional but also is a great practice for limiting your time around the resin. No need to breathe in the fumes when checking your prints you can just see it from the webcam!

A lot of this guide came from various sources I just compiled it for my printer specifically the Voxelabs Proxima but the same rules should apply for a wide range of SLA printers. Here is some of the links where i got my information/inspiration from.

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