In the video link below is a test panel with no rough-in pass. Masso controller, Clearpath Servos, proximity sensors for homing, Beefy Z upgrade, H100 VFD with 2.2kw water cooled spindle, tool setter. I ordered the Masso controller direct from Masso. I trashed the under powered stepper motors that came with my unit and installed ClearPath servos. The relief is 1/2" into the material. The feed rate was set at 600ipm with the Z plunge set to 175ipm. I can see 325+ ipm being hit during the run. Very fast for a 1/8" ball nose. The machine is very strong, fast and accurate. The OneFinity frame work is hard to beat!
Can you tell me which ClearPath motor model number you used? Did you need to upgrade power supplies or anything else? I am very interested in this upgrade. They make killer motors. Any additional detail you can provide would be greatly appreciated!
I made the mistake of first buying the cheapest servos they had but they would not drive the machine so don’t do this. The best servos for the OneFinity are the CPM-SDSK-2321S-RLN @ $305.00 each. You will need to select the 1/4" shafts if you want the changeover to be simple. I bought 5 because I have an A axis also. These servos are incredibly fast and strong. You will also need one 350/500 Watt DC Power Supply . This IPC-5 will power up to six servos @ 75 volts. You will need to buy the power cables, data cables and one programming cable from them for these servos. Each servo requires their data cable and power cable. The IPC-5 power supply only has two power output ports so you will need to “piggyback” splice the + and - wires for the additional servos to the plugs. You will have to download the autotune software from their website and tune each servo after installing them to the OneFinity. Make sure to not run the autotune on the Y and slaved B axis. To program the Y and B, first autotune the X axis and after it has completed save that configuration to a file from the drop-down menu. Then connect the programming cable to each Y and B servo individually and load that program into the servos. This is really the only way that you can do a slaved axis. When tuning the servos you can select pulses per rev and that can make a difference in speed but I used the default 800. This setting will make it easier to setup say in Masso. To realize the full benefits of using the ClearPath servos it is imperative to have homing switches and a mounted tool setter. I also would advise setting up soft limits for all axis because this will prevent crashing. I prefer proximity sensors over mechanical switches for the reliability and repeatability. With this setup, say that you “were” able to overpower the limits of one of these servos during a machining operation… the servo will send a motor alarm to the controller and the process will immediately shut down. It will be easy to recover by first disconnecting the power for the servos for a second and then call the homing routine and then start the process back up at or before the line were the error occurred. These servos know where they are always and you can attempt to turn one by hand and it will fight back to hold position! Over the years I have built many CNC routers and other machines but this was my dream build after seeing what OneFinity had to offer for the base framework. I am truly impressed by the machine that I now have! It is purely AWESOME! I hope this info helps you and other understand what you need to make this happen. I did it without any information and just had to figure it out along the way. the move to servos is quite different from the stepper.
Thank you, @awsloan !! I appreciate the great details!
I am familiar with ClearPath servo setup procedures and stuff, but the details you provide are certainly helpful to reduce the up-front legwork a little bit!
I was also curious to the tuning PPR you are using (800), which I use currently on my Elite motors. (needed to properly work the Masso MPG)
My Elite does have the fiber optic limit/homing switches installed already.
The power and speed capability of the ClearPath servos are amazing, for sure. It would have been great if Onefinity had them as an optional factory package for the Elite series!
I would love to see more videos someday when you get a chance! Great stuff!
Thanks again!
Brian
