Huh, I was not getting any notifications for this thread, I seem to have missed a lot.
I may have a house with a garage next month, which means ill have space for working on my brothers and other things.
Some of my problems some people have addressed her already it seems.
1: I have single phase power.
I have a working spindle drive and motor in the TC225. Thanks to stal I guess it seems we can run single phase 220v? I expect the standard derating to 2/3 current applies - although you have no way to really do that other than to simply not program it to cut heavier than 2.1kw continuous. It will help me tremendously to be ably to use the stock drive, as new 3kw ish single phase ac servo drives cost an absurd amount of money.
2: To rmu, sadly, you wont be using the stock servo axis drives. as you may have seen from earlier in this thread, they really just cant be tuned (under linuxcnc anyway). you can buy new drives and keep the motors I expect, but, delta for example makes top end kits that sell for less than many other peoples drives alone. I'll be using the new Delta B3 motors and drives. 80mm/400w x and y, 80mm/750w for the z on the TC225, and 80mm/750w, 130mm/1kw for the TC229. Downside is you need to make motor adaptor plates, and bore the couplings for the larger shafts. The upside is, they will "just work". no fuss, no tuning nightmares on analogue velocity control, you can run either pulse position, or torque control (which by all accounts works better in linuxcnc than velocity). I have cards for both modes, so ill test both.
3: Thanks for the pinouts ricardo. id worked the basic ones out myself on the 225, they are the same. There is a current feedback on one of the pins, but I never made use of it. Good to know for certain which was the alarm too.
So, ill be starting with my TC229, because its got the best mechanical condition (no backlash).
I will take the spindle drive from the TC225 and use it on the 229. I will make an adapter plate to swap the motors. The motor on the 225 I a little smaller than the 229. At a later date ill swap it back and buy a new drive and motor for the 229 that runs faster.
X and Y axis will get delta B3 750w 80mm servos. As mentioned, these will need the couplings bored, and adapter plates made to fit the 86mm mounts. Z axis will get B3 kit in 1kw, with a 130mm adapter plate. This motor has a brake. It's about $2100ish cdn all in for the 3 axis kits shipped. These are about the cheapest no fuss high end option I can find. There are cheaper kits, and used kits, but, they always have the "I hope it runs right" think hanging over it.
I need to paint the enclosure up (if you remember, I had them chemically stropped), and then I need to call yamazen to get new way cover seals. I also need to laser cut new windows from 1/4" PETG (cause all acrylic and polycarbonate are on covid-19 duty).
The 225 really only needs the ball screw nuts repacked with new balls, but the 229 is more guaranteed to be perfect with less hassle, so ill start there.
For the control, I already did a lot of work to get linuxcnc working, with the atc running, so ill stay on that path, at least for the short term (long term I may get delta controls for both machines, but that's money spent for no gain right now).
Someone touched on the one last issue I have on the machine, which is the ATC save zone. Was there any thoughts on the solution for that yet? My only real thought on that it to put an Arduino in the middle. Call out the G65 IO the same way, but have an Arduino intercept it, and ONLY execute if its in the safe zone, and if not, error the machine. Id need to make the Arduino 24v compliant with a few IO (2 to the mesa, 2 to the relays, 3 for sensors (the 229 has one extra sensor in the turret).
Basically, the safety intercept needs to make certain that the turret may not move in low Z zone, and the Z may not move when the turret is in high z zone.
Part 1 of that is easy. Arduino checks sensor, if its low, then it refuses any turret rotation command and triggers an error. Part 2 is more tricky. The Arduino monitors the upper atc limit, then if it detects the switch go low while the turret is spinning, it e-stops. If the turret isn't on station, it e stops. the 229 has that sensor. the 225 does NOT. The 225 will have to use the g code sub to get that information, which will of course only work during a called toolchange, and not in other accidental situations.
So that's where we are. Should be an entertaining august.
