I purchased a Grizzly G0619 mill last week for a CNC conversion and it will arrive next week. I have already purchased a deluxe kit from cncfusion to start the conversion and have a few questions about various other aspects of the conversion and for my future plans. This will be my first CNC conversion and the X3 had readily available kits and seemed like a good place to start. Originally wanted a RF-45 clone but I don’t think I have the skills to do that conversion or tools to fabricate the parts since my shop is a cabinet shop. Here are a couple of questions I have.
I have access to a Baldor IDM3661T motor and would like to replace the BLDC stock motor with it and a VFD when I can. This motor is considerably heavier, like 90 lbs heavier! So, would it be possible to use the Baldor if I added a couple of gas springs/struts and column reinforcement?
What would be the best electronics package i.e. steppers/servos, driver, and power supply? I was planning on using Keling products for my conversion. Here are the components I came up with based on the Baldor.
Steppers:
(1x) KL34H2160-62-8A 1810 oz-in for Z axis
(2x) KL23H2100-30-4BM 495 oz-in for X and Y
Drivers
(1x) KL-9082 for Z
(2x) KL-8060 for X and Y
Power Supply
KL- 7220
Break out boards
SmoothStepper USB Motion Control read it now has backlash correction
C23 - Dual Port Multifunction CNC Board
If I can’t use the Baldor then I’ll downgrade to smaller units like the Sieg kit offered by Keling. I’ll also be adding a power drawbar asap, so more weight there too. Would I better off with a servo kit over steppers in conjunction with the Baldor? If the Baldor is just wishful thinking on my part, any suggestion for the motor would be appreciate I’d like to stay in the 2 to 3hp range. I know I’ll have to fabricate a mount to place the motor on the top of the mill, but I could also add a dual ratio pulley system at the same time.
On the BOB. What is the advantage of the dual port board over a single port board C23 v C11? Is the second port for pendants, touch probes, and other input devices? i read the manuals on both and didn't see a whole lot of difference.
Going use the Tormach Tooling System too. Any suggestions on a quality VFD in the $750 range or less to go with Baldor? I think with a good sensoreless VFD I could get by with a 1:1 pulley system and be happy. I'll be using Mach3 so I'd like the VFD to interface Mach easily.
Sorry for the long post but wanted to provide as much info on my plans to the pro's out there in cnczone land.
Link to Baldor motor specs
Products: AC Motors: IDM3661T: Baldor Electric Company, a leader in energy efficient electric motors, linear motors and adjustable speed drives industry
Thank you,
Greg Stem