Creality Ender 3 Pro / CR-10 S5 / 427 + BLTouch

[JPT77]

Requirements

Creality printers with STM32 version 4.2.7 board and BL touch sensor.

Description

This config adds a BL touch config to the above two creality printers . It is not 100% final but it's already quite stable. I added a lot of comments with "JPT" which explain why I set some variables this way and where more work my be needed. I also added a read-me and fetched the logo files from existing configs. The files are meant for current 2.1-bugfix branch, not the 2.1.2.2 release. Should I deliver configs for the latest release too? Where?

Benefits

Will be easier to set up BL touch for these printers.

Disclaimer

It's 10 years since I last fiddled with Marlin. So please check thoroughly before accepting this PR.

[thinkyhead]

It is best that the configuration with BLTouch match as closely as possible the parent config in all aspects that are not probe-related. If there are improvements to be made to a given machine configuration, it should be made to all of the machine's configurations.

[thinkyhead]

Is the bed temp sensor actually different on this model (1 instead of 5), with a higher max temp?

[thinkyhead]

• When using UBL the mesh should occupy the entire bed area (minus a safe margin).
• As you noted, the MAX POS values should almost always be larger than the BED SIZE values. Those should be corrected in the standard configs also. I just did this for X MAX only so far.
• Although your machine can't handle a high BAUD RATE we should leave it alone and stick with the defaults. The same goes for any other adjustments that are not universally required.

[JPT77]

Is the bed temp sensor actually different on this model (1 instead of 5), with a higher max temp?

I don't know. I tried checking the bed temp with an infrared thermometer and it seemed to be almost 10 °C off. Seemed to be less with the new config. but not sure.

• When using UBL the mesh should occupy the entire bed area (minus a safe margin).

minus save margin or minus "reachable"? ie, you you mean it should include positions not reachable by the probe that should be taken manually?

• As you noted, the MAX POS values should almost always be larger than the BED SIZE values. Those should be corrected in the standard configs also. I just did this for X MAX only so far.

not sure what that is about, already forgot ;)

• Although your machine can't handle a high BAUD RATE we should leave it alone and stick with the defaults. The same goes for any other adjustments that are not universally required.

I agree. seems to be another issue on my part.

did you change everything you mentioned here or should I?