Centroid Community CNC Support Forum

Depending on age/spec, i think the suggestion on another thread was to upgrade the encoders.

Question then

Would using a linear scale to give positional info to the OAK be better than a rotary encoder ?

I don't fully understand when you say "two separate encoders per axis".
If possible can you explain a bit more.

Do you have the encoders feeding the..

a) the SimoDrive
or
b) Into the OAK controller

What sort of backlash should I see on the X & Y axis ?

I'm seeing about 0.02mm on a A -> B -> A move
and it's bang on if I do a A -> B -> C (back past B) -> A

I'll check mine to see.

You changed the encoders due to a problem or there was another benefit.

The setup it came with, had a continuous air feed into the port I highlighted on the photo.

As you said, i would have expected it to go through a solenoid to only blow air when the spindle was running.
So it looks like a DIY add-on.

I'll add a solenoid to make it blow only when running.

I thought I had an air leak in the spindle. As I have now started taking panels off to clean it (i can not understand why people don't clean machines - but the mess was truly shocking.) Anyway i found the leak. See the picture, there is a continuous air feed (regulator looks to have been added later...

Hi

Mine only has 2 solenoids, so clearly single speed.

What are your thoughts to the upgrade...

• need only the oak

• simodrive should keep or replace

any other thoughts ?

re. Optionally a two-speed spindle gearbox with pneumatic shifting

Not sure if i have this, at present max spindle speed is 3000rpm
How does it change gear ?

also how can i command a tool change from the control panel ?