Choosing the correct firmware

[AaronParticipant]

Hey all….

I have been using my MPCNC for 2.5 years now. I need to replace my Mega and I’m looking or the best firmware option. This should be simple, I know… might just be overthinking (I AM tired…) but I’m a bit lost looking for the correct pre-config to start with.

My machine is using Mega, Ramps 1.4, 16 teeth on the X/Y, 5/15 ready rod (all thread?) for the Z. Full Graphic LCD.

The gitHub branch names are a bit cryptic (only because I have not been paying attention, I’m sure) and a forum search did not help me much. Thanks in advance…

Aaron

[BTParticipant]

So, here’s a breakdown of a RAMPS version:

MPCNC_Ramps_T8_16T_LCD_32step ==> obviously for the MPCNC, but also for the LowRider

MPCNC_Ramps_T8_16T_LCD_32step ==> for RAMPS (other options are mRambo for miniRambo, Rambo for the full Rambo, ArchimX for well, Archim X=1 or 2)

MPCNC_Ramps_T8_16T_LCD_32step ==> T8 for the lead screw (you have the all thread, so you will need to adjust the steps/mm for the z-axis.

MPCNC_Ramps_T8_16T_LCD_32step ==> 16T for 16 tooth pulleys

MPCNC_Ramps_T8_16T_LCD_32step ==> LCD is enabled, though I can’t recall which one, full graphics smart LCD or something like it

MPCNC_Ramps_T8_16T_LCD_32step ==> 32 microsteps selected for the stepper driver, typically for the DRV8825 drivers (A4988 stepper drivers are only capable of up to 16 microsteps)

Hope that helps.

4 users thanked author for this post.

Ryan, Bill, Aaron, Jeffeb3

[AaronParticipant]

Thank You for the great break down… well said and very clear. (shoulda been clear to me in the first place, in hind sight but I appreciate the confirmation). I have no problem making adjustments but if someone else has done the work I may as well start out with something close…

Have a great day,
Aaron

1 user thanked author for this post.

BT

[BillParticipant]

Maybe Ryan could put a matrix up on the firmware page with that spelled out… The naming conventions he’s using aren’t going to change until we start using a newer board that the current set so it shouldn’t need to be updated often.

1 user thanked author for this post.

Ryan

[RyanKeymaster]

Cool, I added a little blurb, if this comes up again I will add links.

[Jeffeb3Participant]

Have you seen when datasheets lay out their model numbers like that? That’s what I pictured in my head.

[Seth WilliamsParticipant]

BT wrote:

So, here’s a breakdown of a RAMPS version:

MPCNC_Ramps_T8_16T_LCD_32step ==> obviously for the MPCNC, but also for the LowRider

MPCNC_Ramps_T8_16T_LCD_32step ==> for RAMPS (other options are mRambo for miniRambo, Rambo for the full Rambo, ArchimX for well, Archim X=1 or 2)

MPCNC_Ramps_T8_16T_LCD_32step ==> T8 for the lead screw (you have the all thread, so you will need to adjust the steps/mm for the z-axis.

MPCNC_Ramps_T8_16T_LCD_32step ==> 16T for 16 tooth pulleys

MPCNC_Ramps_T8_16T_LCD_32step ==> LCD is enabled, though I can’t recall which one, full graphics smart LCD or something like it

MPCNC_Ramps_T8_16T_LCD_32step ==> 32 microsteps selected for the stepper driver, typically for the DRV8825 drivers (A4988 stepper drivers are only capable of up to 16 microsteps)

Hope that helps.

So I’m trying to flash my board…and I have A4988 drivers.  Do I still use the 32step since there is no other options?

[RyanKeymaster]

You can use it as the base and change the steps (and drivers type) to match your chosen hardware.

3 users thanked author for this post.

Seth Williams, Aaron, BT

[AaronParticipant]

Thanks guys… Ryan your clarification on the Firmware page is very clear… I might suggest adding the same to the readme in your main repo… but that’s up to you to decide if it’s needed…. Thanks again

 

1 user thanked author for this post.

Ryan

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