Homing
- Thread starter justingro
- Start date
Hi Justin,
Could I start by asking a silly question. Do you have a homing sensor on the B axis and is it configured as the B axis homing sensor.
I have seen 2 situations where homing doesn't work as expected. Either the sensor isn't installed or it has been assigned as the B axis motor alarm input by mistake.
Have a look at this video on setting up homing as it my be helpful.
Cheers Peter
Could I start by asking a silly question. Do you have a homing sensor on the B axis and is it configured as the B axis homing sensor.
I have seen 2 situations where homing doesn't work as expected. Either the sensor isn't installed or it has been assigned as the B axis motor alarm input by mistake.
Have a look at this video on setting up homing as it my be helpful.
Cheers Peter
Hi Peter and Arie.
Yes have a sensor on B axis and set up as sensor input are going high when sensed both axes are work B axis is just not backing off the 5 mm I set all other axis are doing that I will make sure all is as you said tomorrow and take screen shots of I don't come right
Justin
Yes have a sensor on B axis and set up as sensor input are going high when sensed both axes are work B axis is just not backing off the 5 mm I set all other axis are doing that I will make sure all is as you said tomorrow and take screen shots of I don't come right
Justin
Hi Justin,
You didn't mention if you got a homing alarm but I'm guessing that you do.
I had a think and swapped the Y & B sensors on my axis and homed my machine. The Y axis backed off but the B axis didn't move and I got a homing alarm.
Could you possible have the B sensor on the Y axis and the Y sensor on the B axis?
If you watch the video from 11:22 it shows how to check which axis is which to ensure you have assigned the right sensor on the right axis.
Just a thought.
Cheers Peter
You didn't mention if you got a homing alarm but I'm guessing that you do.
I had a think and swapped the Y & B sensors on my axis and homed my machine. The Y axis backed off but the B axis didn't move and I got a homing alarm.
Could you possible have the B sensor on the Y axis and the Y sensor on the B axis?
If you watch the video from 11:22 it shows how to check which axis is which to ensure you have assigned the right sensor on the right axis.
Just a thought.
Cheers Peter
Hi Peter .
Thanks for you time and help. I found the problem, in my homing screen at the bottom I had a homing value in the Y and X and Z but nothing in the B box so just copied the Y axis in the B axis box and all worked ok it always the small things .
On a different not what pitch Ballscrews would you recommend and would I direct drive or step down
Help appreciated
Justin
Thanks for you time and help. I found the problem, in my homing screen at the bottom I had a homing value in the Y and X and Z but nothing in the B box so just copied the Y axis in the B axis box and all worked ok it always the small things .
On a different not what pitch Ballscrews would you recommend and would I direct drive or step down
Help appreciated
Justin
breezy
Moderator
Justin,
You asked this question in the FAQ section and madscientist gave an excellent reply, which I feel was a very good.
You have to decide what performance you want from your machine and design to those specs. We could tell you to use certain pitch and gear ratio and the machine could become the machine from hell, because that combination with the rest of your design just don't go together.
And it's not only the pitch, but the diameter, length and the number of leads that are important also.
Have you researched on sites like CNCZones? Lot of good info there.
Regards,
Arie.
You asked this question in the FAQ section and madscientist gave an excellent reply, which I feel was a very good.
You have to decide what performance you want from your machine and design to those specs. We could tell you to use certain pitch and gear ratio and the machine could become the machine from hell, because that combination with the rest of your design just don't go together.
And it's not only the pitch, but the diameter, length and the number of leads that are important also.
Have you researched on sites like CNCZones? Lot of good info there.
Regards,
Arie.