Z speed (G28 Z) at the start of printing?

Rudy2A

Hello,

On my Corexy, I decided (I find it convenient) to get off my bed at 240 from my nozzle. So I placed in my G-Code End (G1 Z240).

However, when I program a new print, I do a G28 (G-code start), the problem is that my bed takes long minutes to arrive at Home!

If I put in my start G-code G28 X Y and below G28 Z Fnnn is this good or exists there simpler or better (in Config.G for example)?

On the other hand, if the bed moves faster, the bed not get too fast on the BLTouch and block it?

I had read somewhere that we could add an option in the G-Code to use the maximum speed of movement ... But I can not find this information anymore.

fcwilt

@Rudy2A

I always specify move speeds in all move commands.

Frederick

T3P3Tony

the best option, as @fcwilt has said, is to specify (with the Fxx.xx switch) what movement you want a move to happen at.

Rudy2A

@fcwilt said in Z speed (G28 Z) at the start of printing?:

Je spécifie toujours les vitesses de déplacement dans toutes les commandes de déplacement.

thanks for the information...

@T3P3Tony said in Z speed (G28 Z) at the start of printing?:

spécifier (avec le commutateur Fxx.xx)

So I can safely specify G28 Z 400 for example?

Phaedrux

If you're using a Z probe you can use M558 F### in your homeall.g to configure a fast probe and a second slower probe.

M558 A1 F400			; Set single probing at faster feed rate
G30 				; Do a single probe to home our Z axis
M558 A10 F100			; Set multi probing at slower feed rate
G30				; Probe again to get a more accurate position

fcwilt

@Rudy2A said in Z speed (G28 Z) at the start of printing?:

So I can safely specify G28 Z 400 for example?

G28 Z would invoke homeZ.g - that's where I have the move commands each with a F parameter.

Frederick

Rudy2A

@Phaedrux said in Z speed (G28 Z) at the start of printing?:

Si vous utilisez une sonde Z

Yes, I have a BLTouch ... I will test! Thank you

@fcwilt said in Z speed (G28 Z) at the start of printing?:

G28 Z invoquerait homeZ.g

Thank you for the additional information.

Rudy2A

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