Category: CNC Machines
Thank you for the compliments!
I have had pretty much the whole machine apart, and I had a few oil ports that were full of gunk as well. But those are all cleaned and open now. I did also open one of the metering valves in the past, and from my recollection it looked very similar to the photo you attached. And it does measure a certain amount every time the pump operates. The bubbles move a certain distance and then stop even if the pump is still running.
I made my own lubricator component, because I did not find anything else I liked. I have attached the component here, even though it is not 100% finished. It works much like you outlined. It runs the pump until the pressure switch activates, then runs the pump for 10 more seconds before it switches off. If it doesn't get the pressure feedback within 60 seconds it turns off and prints and error message. It runs the pump at first motion of the machine, and after that every time it has "accumulated" 10 min of motion.
To the best of my recollection, the bubbles move when the pump starts, and not when it turns off. But I am now travelling and unable to verify.
Thank you for the information. And if it's not too much trouble, it would be interesting to see the Vogel manual as well.