Speeding up homing process

All things related to the Centroid Acorn CNC Controller

Moderator: cnckeith

Post Reply
Insect
Posts: 52
Joined: Mon Jun 26, 2023 7:57 am
Acorn CNC Controller: No
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No

Speeding up homing process

Post by Insect »

My homing is 50 seconds, y axis slaved gantry machine. Any ideas to eliminate the pauses between operations, including saving positions? My prior setups typically run 10 seconds.

Thanks,


lavrgs
Posts: 564
Joined: Sat Aug 11, 2018 11:22 pm
Acorn CNC Controller: Yes
Plasma CNC Controller: No
AcornSix CNC Controller: No
Allin1DC CNC Controller: Yes
Hickory CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Oregon

Re: Speeding up homing process

Post by lavrgs »

I use the the PARK command as it moves faster. I currently have to leave my mill table positioned at the opposite end from home,when I turn on my machine using PARK to position the table close to HOME saves a lot of time.


Sword
Posts: 758
Joined: Fri Nov 30, 2018 1:04 pm
Acorn CNC Controller: Yes
Plasma CNC Controller: No
AcornSix CNC Controller: No
Allin1DC CNC Controller: No
Hickory CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Thorp WI

Re: Speeding up homing process

Post by Sword »

You can change the homing feedrate, per axis, in the wizard on the "Homing and Travel" page. Take care to not set it too high, as repeatability could suffer, depending on your setup. I reliably run 120/120/90 in/min with mine. I also use "Park" when shutting down for the day, leaving the axes close to home for the next power up.
Scott


Insect
Posts: 52
Joined: Mon Jun 26, 2023 7:57 am
Acorn CNC Controller: No
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No

Re: Speeding up homing process

Post by Insect »

I also run Park, programmed to go to 2mm from the limits, so it's really close.

As for transits during homing, they affect little to me, most of it is pauses every step, in software, but I was curious if rapid homing transits would affect repeatability, so I set them pretty mild, can't recall, but around 300 mm/min.


ShawnM
Posts: 2651
Joined: Fri May 24, 2019 8:34 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 7804734C6498-0401191832
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Clearwater, FL

Re: Speeding up homing process

Post by ShawnM »

Please post a current report so we can see your current configuration.

On your "Y axis slaved gantry machine" are you using auto pairing and squaring? Were your prior setups the same setup as this one? This automatically takes longer but you can shave a few seconds out of some of the homing macros. It'll never be as fast as a non auto pairing and squaring machine.

Relax for a few seconds, what's the rush? :D


suntravel
Posts: 2894
Joined: Thu Sep 23, 2021 3:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 6433DB0446C1-08115074
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Germany

Re: Speeding up homing process

Post by suntravel »

Insect wrote: Thu Nov 16, 2023 12:50 pm I also run Park, programmed to go to 2mm from the limits, so it's really close.

As for transits during homing, they affect little to me, most of it is pauses every step, in software, but I was curious if rapid homing transits would affect repeatability, so I set them pretty mild, can't recall, but around 300 mm/min.
Depends on how repeatable your drives can slow down. But the most important thing is to home always at the same speed.

Uwe


CNCMaryland
Posts: 369
Joined: Thu Nov 15, 2018 10:07 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: F045DA7CBF8b-103011290
DC3IOB: No
CNC11: No
CPU10 or CPU7: No

Re: Speeding up homing process

Post by CNCMaryland »

That's what is it. I'm running a slaved Y, auto pairing, auto squaring. 55 seconds. 500mm/min home rate.


Post Reply