[cornbinder23]

cornbinder -
I'm liking your 3ph / vfd set up on your SX3. A few questions -
- what sort of speed ranges are you getting with that set up?
- do you have any more detailed pics and/or drawings that you would be willing to share on the mounting of the motor / belt drive / pulleys etc.?
- Did you change your spindle bearings out for better ones?

Thanks!

In that same thread I show a readout of the RPM it is about 3800rpm @60Hz
and 5700rpm @ 90Hz, I am planning to add an index pulse card so I can read the rpms in Mach as well as spindle control with the G540
As far as pics go for the belt drive I only have what is posted in that build thread sorry, BUT I can take measurements this weekend and make some .DXF's for anyone who is interested, the motor is a baldor 1 hp 3ph 56C frame that I already had, and I am running it with a Teco CV7300 VFD

As far as the spindle bearings, yes I did swap them out for better bearings
I purchased 2 off ebay and found the other @ EB Atmus
I will look and see if I can get the bearing numbers for you
Do you have an SX3 or an X3 because I know they are a little different spindle wise, at least the X3 spindle a fellow zoner sent to me for a rebuild was different than my SX3 not by much though
Also PM me thurs or fri to remind me about the belt drive drawings, and I will update and post them in my build thread

Later
JTCUSTOMS

[FPV_GTp]

have a look www.SuperPID.com - Super-PID Closed-loop Router Speed Controller

Could possible be used on the X3's

cheers

[LewisCobb]

Thanks a million for this.
I'll PM you on Thursday to give you a nudge.
The dxfs would be fantastic.

I'm really torn between the X3 or SX3 at the moment (I have nothing yet). I like the idea of the SX3 but it seems to me there's no easy way to control speed in the future with CNCing it. Your approach is a good one if nothing were to pan out between now and then - just gut the BLDC and electronics and put a 3ph/vfd in its place. It might also be a good approach if the BLDC were to die once the machine is out of warranty, as I have read that the replacements are very expensive.

Thanks again

In that same thread I show a readout of the RPM it is about 3800rpm @60Hz
and 5700rpm @ 90Hz, I am planning to add an index pulse card so I can read the rpms in Mach as well as spindle control with the G540
As far as pics go for the belt drive I only have what is posted in that build thread sorry, BUT I can take measurements this weekend and make some .DXF's for anyone who is interested, the motor is a baldor 1 hp 3ph 56C frame that I already had, and I am running it with a Teco CV7300 VFD

As far as the spindle bearings, yes I did swap them out for better bearings
I purchased 2 off ebay and found the other @ EB Atmus
I will look and see if I can get the bearing numbers for you
Do you have an SX3 or an X3 because I know they are a little different spindle wise, at least the X3 spindle a fellow zoner sent to me for a rebuild was different than my SX3 not by much though
Also PM me thurs or fri to remind me about the belt drive drawings, and I will update and post them in my build thread

Later
JTCUSTOMS

[Al_The_Man]

have a look www.SuperPID.com - Super-PID Closed-loop Router Speed Controller
Could possible be used on the X3's

cheers

This would only work for a Universal motor.

Your approach is a good one if nothing were to pan out between now and then - just gut the BLDC and electronics and put a 3ph/vfd in its place. It might also be a good approach if the BLDC were to die once the machine is out of warranty, as I have read that the replacements are very expensive.

Are these fitted with a BLDC motor with Hall effect or equivalent commutation?
If so, one of the many Advanced Motion controllers and others on ebay should do the trick.
What is the rated power of the present motor?
Just curious.
Al.

[cornbinder23]

Are these fitted with a BLDC motor with Hall effect or equivalent commutation?
If so, one of the many Advanced Motion controllers and others on ebay should do the trick.
What is the rated power of the present motor?
Just curious.
Al.

I will check tonight to see if it does have hall effect sensors, and what the rated power output is, as I have it in a drawer in the shop
Maybe you could point those folks in the right direction as to what Avanced Motion Controller they could use in this application.

JTCUSTOMS

[Al_The_Man]

I will check tonight to see if it does have hall effect sensors, and what the rated power output is, as I have it in a drawer in the shop
Maybe you could point those folks in the right direction as to what Avanced Motion Controller they could use in this application.

JTCUSTOMS

From what I have gathered from googling this is a regular BLDC motor?
Is there a link for any details on the motor anywhere?
I have used an AMC drive with a Fanuc AC servo motor I converted to BLDC.
In my estimation, if you have a decent BLDC motor on this mill my initial opinion is it would seem a backward step to fit a VFD and induction motor, just because the controller is failing or poor design?
Al.

[cornbinder23]

Thanks a million for this.
I'll PM you on Thursday to give you a nudge.
The dxfs would be fantastic.

I'm really torn between the X3 or SX3 at the moment (I have nothing yet). I like the idea of the SX3 but it seems to me there's no easy way to control speed in the future with CNCing it. Your approach is a good one if nothing were to pan out between now and then - just gut the BLDC and electronics and put a 3ph/vfd in its place. It might also be a good approach if the BLDC were to die once the machine is out of warranty, as I have read that the replacements are very expensive.

Thanks again

YES the replacements are Very expensive, but if anyone wants one I will hold onto this motor and controller and could let it go for a heluva lot less than grizzly

JTCUSTOMS

[Vatorman]

JT Very cool job on the whole setup. Love the controller Idea very inventive And yes i also am happy with the sx3 motor capabilities, everything ive thrown at it has made me very impressed with the torque output, The only thing i have had a little trouble with was cutting 4140 but even that was because i think was cutting pretty deep at the time. Customer was still happy though Ive been thinking of doing something similar with a motor swap with the sx3. Are you satisfied with the power of the 1 hp motor?
I spoke with jeff over at syil today and he said he will be ordering a shipment of motors and electronics for a few machines and mentioned he would get a x4 motor/electronics for me but first he needs to find a price and let me know. I'm a little scared to find out, but we'll see what happens. If that doesnt pan out i will checking on the bay for some deals for a similar setup like yourself.
Seeing something like the amount of work you put into your machine makes me push myself even more. Thanks for the encouragement.

[cornbinder23]

JT Very cool job on the whole setup. Love the controller Idea very inventive And yes i also am happy with the sx3 motor capabilities, everything ive thrown at it has made me very impressed with the torque output, The only thing i have had a little trouble with was cutting 4140 but even that was because i think was cutting pretty deep at the time. Customer was still happy though Ive been thinking of doing something similar with a motor swap with the sx3. Are you satisfied with the power of the 1 hp motor?
I spoke with jeff over at syil today and he said he will be ordering a shipment of motors and electronics for a few machines and mentioned he would get a x4 motor/electronics for me but first he needs to find a price and let me know. I'm a little scared to find out, but we'll see what happens. If that doesnt pan out i will checking on the bay for some deals for a similar setup like yourself.
Seeing something like the amount of work you put into your machine makes me push myself even more. Thanks for the encouragement.

Thanks for the kind words Vatorman, it was alot of work but was also alot of fun!
I am more than happy with the 1hp motor, just be sure to buy a sensorless vector drive for it, as you will retain more low end torque
I think you will find a vfd/motor combo cheaper than what the X4 electronics will be, but dont quote me on that.
Do you have a build thread here?