Hi,
I am based in Newcastle and working on two machines.
I have a back ground in IT/Electronics/Mechanical engineering(small amount) and some years in the servicing of large Sign printing equipment. So for me the CNC world has been calling for many years. So, I quite my job and attempting to pursue my dreams of a DIY CNC milling machine that can output professional and low tolerance parts of my own design (any other peoples')
I have a pretty decent workshop with 3phase Large manual lathe 5HP 52mm bore 410mm swing and a Brighport Clone (A Hartford) and am trying to get a bit of machining work to fill the gaps in
First one is documented here: https://www.instagram.com/diy.cnc.mad/
Flickr: https://flic.kr/s/aHskLVx9wE
Its been slow with a lot of hold ups. The latest being a tear-down of the spindle because there were a LOT of things wrong with it. Including a HSKA63 interface that was not machined correctly and did not clamp properly because in correct machining. There was a A/C bearing that was upside down. I had to make a new draw-bar because it had .2mm or play and the belleville washers would move around on the rod which is just ridiculous at 18000rpm. The springs were incorrectly arranged and not all in pairs which is a big problem if you understand Belleville washers. Anyway have a look at instagram if you are interested.
In the end the machine has a work envelope of 1000 x 800 x 600mm. will weigh about 2000kg and have ATC , running 4kw Servoes on 35-55mm ball rails. So, not you average little router.
I am probably going to use the Masso and when this other retrofit of a CNC router came up, I thought that it would be a great learning curve and shakedown to see if it would be a good fit for the big mill.
An that brings me to the Procam / Centroid router that I am currently retrofitting.
I am replacing all the 120VDC servos with Leadshine NEMA34 easy servos (Hybrid Steppers) and ripping out everything related to the centroid. So, new touchscreen Keyboard/mouse mounted in the existing console. New 24v power supply nice industrial salvaged part. A MPG pendant.
I am of course keeping the Fuji FVR-E11 VFD and the HSD ES919 8kw spindle which has BT30 nose.
Currently all the electronics are installed and I spent the last few days drawing a wiring diagram. (which I am never going to show cause it is horrible to look at but it serves its purpose for both repair and diagnosis and also for the customer should I get hit by a truck
)
I am also running just one 500w Leadshine Genuine power supply because based on the speed this machine will run at (not that fast) and the very light weight materials that are cutting, I don't think its going to be over loaded.
The power supply has 3 separate outputs :
I REALLY wanted to run the servo drives on AC but I just could not find a 50-60v AC transformer :-( at least not off the shelf and for a reasonable price. The Procam has a large transofrmer in it with 3 x 83v 3-phase outputs but damn just too high a voltage for the drives. I thought about running the transformer on the 440 VAC input taps which would drop the voltage to 73 or something but that is still too high. if we had 380 VAC like other countries that might have worked. Oh well.
So that's about it for now.
I am still yet to power up the servos and spindle but on we go.
Oh and one more thing; all the servos belt drove the axes so I had to bore all the belt pulleys to work with the servos which had 14mm shaft versus 10 or 11mm (cant remember) ..on the Zaxis I had to actually turn down the shaft of the Stepper because there was not enough meat in the pulley. So I actually had the whole servo in the 4-jaw and span that with a live centre!! vid of that on Instagram.
Anyway I hope that is of some interest!
Cheers!
I am based in Newcastle and working on two machines.
I have a back ground in IT/Electronics/Mechanical engineering(small amount) and some years in the servicing of large Sign printing equipment. So for me the CNC world has been calling for many years. So, I quite my job and attempting to pursue my dreams of a DIY CNC milling machine that can output professional and low tolerance parts of my own design (any other peoples')
I have a pretty decent workshop with 3phase Large manual lathe 5HP 52mm bore 410mm swing and a Brighport Clone (A Hartford) and am trying to get a bit of machining work to fill the gaps in
First one is documented here: https://www.instagram.com/diy.cnc.mad/
Flickr: https://flic.kr/s/aHskLVx9wE
Its been slow with a lot of hold ups. The latest being a tear-down of the spindle because there were a LOT of things wrong with it. Including a HSKA63 interface that was not machined correctly and did not clamp properly because in correct machining. There was a A/C bearing that was upside down. I had to make a new draw-bar because it had .2mm or play and the belleville washers would move around on the rod which is just ridiculous at 18000rpm. The springs were incorrectly arranged and not all in pairs which is a big problem if you understand Belleville washers. Anyway have a look at instagram if you are interested.
In the end the machine has a work envelope of 1000 x 800 x 600mm. will weigh about 2000kg and have ATC , running 4kw Servoes on 35-55mm ball rails. So, not you average little router.
I am probably going to use the Masso and when this other retrofit of a CNC router came up, I thought that it would be a great learning curve and shakedown to see if it would be a good fit for the big mill.
An that brings me to the Procam / Centroid router that I am currently retrofitting.
I am replacing all the 120VDC servos with Leadshine NEMA34 easy servos (Hybrid Steppers) and ripping out everything related to the centroid. So, new touchscreen Keyboard/mouse mounted in the existing console. New 24v power supply nice industrial salvaged part. A MPG pendant.
I am of course keeping the Fuji FVR-E11 VFD and the HSD ES919 8kw spindle which has BT30 nose.
Currently all the electronics are installed and I spent the last few days drawing a wiring diagram. (which I am never going to show cause it is horrible to look at but it serves its purpose for both repair and diagnosis and also for the customer should I get hit by a truck
)I am also running just one 500w Leadshine Genuine power supply because based on the speed this machine will run at (not that fast) and the very light weight materials that are cutting, I don't think its going to be over loaded.
The power supply has 3 separate outputs :
I REALLY wanted to run the servo drives on AC but I just could not find a 50-60v AC transformer :-( at least not off the shelf and for a reasonable price. The Procam has a large transofrmer in it with 3 x 83v 3-phase outputs but damn just too high a voltage for the drives. I thought about running the transformer on the 440 VAC input taps which would drop the voltage to 73 or something but that is still too high. if we had 380 VAC like other countries that might have worked. Oh well.
So that's about it for now.
I am still yet to power up the servos and spindle but on we go.
Oh and one more thing; all the servos belt drove the axes so I had to bore all the belt pulleys to work with the servos which had 14mm shaft versus 10 or 11mm (cant remember) ..on the Zaxis I had to actually turn down the shaft of the Stepper because there was not enough meat in the pulley. So I actually had the whole servo in the 4-jaw and span that with a live centre!! vid of that on Instagram.
Anyway I hope that is of some interest!
Cheers!
