Biesse Rover 336 retrofit 5i23-7i44-7i66 and 7i33TA
- Naas
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13 Jan 2019 14:54 #124092
by Naas
Replied by Naas on topic Biesse Rover 336 retrofit 5i23-7i44-7i66 and 7i33TA
Finally i have all the wiring done on this machine.
All I/O is connected, all CNI modules removed.
Computer with MESA 5i23
MESA 7i44 handling serial communications
MESA 7i33TA handling motion control
MESA 7i70 and 7i66 in the cabinet, mostly handling motor management.
MESA 7i70 and 7i66 in the head of the machine, handling all drill, spindle and flap pneumatics:
MESA 7i70 and 7i66 at the bottom of the machine, handling vacuumcups, machinestops and toolchangers.
I have also added a contactor on the power mains for more convenience.
I have also added valves on the pneumatic control cirquits of the flaps, so i can have the flaps work fully independent of the spindles.
All I/O is connected, all CNI modules removed.
Computer with MESA 5i23
MESA 7i44 handling serial communications
MESA 7i33TA handling motion control
MESA 7i70 and 7i66 in the cabinet, mostly handling motor management.
MESA 7i70 and 7i66 in the head of the machine, handling all drill, spindle and flap pneumatics:
MESA 7i70 and 7i66 at the bottom of the machine, handling vacuumcups, machinestops and toolchangers.
I have also added a contactor on the power mains for more convenience.
I have also added valves on the pneumatic control cirquits of the flaps, so i can have the flaps work fully independent of the spindles.
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- bevins
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06 May 2019 09:47 #132943
by bevins
Replied by bevins on topic Biesse Rover 336 retrofit 5i23-7i44-7i66 and 7i33TA
Is it moving and did you get toolchanger working?
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- Jonasza
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15 Sep 2020 06:20 #182186
by Jonasza
Replied by Jonasza on topic Biesse Rover 336 retrofit 5i23-7i44-7i66 and 7i33TA
Hello
maybe, who retrofit Biesse Rover 336, can help? What is the PPR of encoder for Rover 336? Since I find in the documentation what the pitch of each axis is, but I don't know the encoders PPR. So I can't calculate the ENCODER_SCALE used in the .ini file.
maybe, who retrofit Biesse Rover 336, can help? What is the PPR of encoder for Rover 336? Since I find in the documentation what the pitch of each axis is, but I don't know the encoders PPR. So I can't calculate the ENCODER_SCALE used in the .ini file.
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- andypugh
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15 Sep 2020 12:00 #182216
by andypugh
Replied by andypugh on topic Biesse Rover 336 retrofit 5i23-7i44-7i66 and 7i33TA
You can measure the PPR if you can rotate the motor by hand.
Make several full rotations while looking at the counts change with Halmeter.
It will be a round number either in decimal or binary (so you only need to be accurate enough to tell the difference between 1000 and 1024, for example.)
Making several turns and dividing helps with accuracy as the start / finish alignment is fractionally less critical.
Make several full rotations while looking at the counts change with Halmeter.
It will be a round number either in decimal or binary (so you only need to be accurate enough to tell the difference between 1000 and 1024, for example.)
Making several turns and dividing helps with accuracy as the start / finish alignment is fractionally less critical.
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- Jonasza
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16 Sep 2020 04:28 #182343
by Jonasza
Replied by Jonasza on topic Biesse Rover 336 retrofit 5i23-7i44-7i66 and 7i33TA
Hello,
thank you. But I need an exact value. I tried different ENCODER_SCALE values experimentally, but I get 1-2 mm error at 100mm feed. No matter how many values I try, even float values, I still get pretty big errors.
thank you. But I need an exact value. I tried different ENCODER_SCALE values experimentally, but I get 1-2 mm error at 100mm feed. No matter how many values I try, even float values, I still get pretty big errors.
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- andypugh
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16 Sep 2020 15:53 #182447
by andypugh
Replied by andypugh on topic Biesse Rover 336 retrofit 5i23-7i44-7i66 and 7i33TA
You would expect 2.4 mm error in 100mm if you had 1000 instead of 1024 (or vice-versa)
If _no_ number gives the right positions then there is something else wrong.
Slipping coupler?
If _no_ number gives the right positions then there is something else wrong.
Slipping coupler?
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