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AR15.COM
4/14/2025 8:31:51 PM EDT
[Last Edit: Amish_Bill][Edited]
Reading some other forums, it sounds like there are general import casting models - 25, 30 and 45, and manufacturers seem to keep that number in their model designations.

I'm in an internal arguement right now... If I'm willing to drive 8 hours, I can get what looks like an unused G0704 for $1750-ish, a new one via HD for $2200, a PM-30 for $3267-ish... and now I see one of the -45 variants not all that far from me.

edit - the beast in question - FB mp link  

Am I thinking logically that an 800lb 45 series will be "better" than a 600lb PM-30?

The bigger concern though... there are some common ballscrew kits and CNC controller / stepper kits for the Grizzly and PM mills. Initial searches don't show any nice semi-dropin setups for this one.

Is anyone familiar with these, and CNC conversions for them?

edit
o k- I'm a bit stuck. Here are my options and a general thought or two on each.
Converting to CNC at some not too far in the future time is an important goal
- The intended purpose is light duty work in Aluminum and Steel
- notching baffles, cutting features into endcaps, milling out some 80s, things like that. If I get really, really adventuresome, maybe flute a barrel to prove I should not be fluting barrels.
- pure hobby use, once every other month or two.
- It's really hard to justify doubling the base cost of the estate unit vs a PM w/ base.
- Everyone talks about size being king, but a completely unknown CNC conversion path on the 45 makes me hesitate.

G0704 -
- $1750 - like new from estate, 8 hours of driving - think it still have the chinesium paper on the bed
- $2200 - new delivered
- - known quantity with Procut and AZ ballscrew conversions and Procut CNC controller/stepper kits
- - conversion kit is a little cheaper than the PM-30

PM-30mv -
- $3368 delivered
- $3668 delivered with a base/stand
- - known quantity with Procut and AZ ballscrew conversions and Procut CNC controller/stepper kits

ZX-45
- $2400 local
- comes with a few collets
- no idea what motor is on it now - a bad pic in the add shows either a 1.0 or 10 hp Leeson 220-440 motor, and the Teco drive makes me think it's AC w/ VFD? Dude says it runs on 110, so I'm a little confused.
- - complete unknown as far as CNC conversion down the road
Disclaimer - OP is bad at knowing things, and might catch on fire.
Vet - Op MMAMA
Every other species kills off their stupid......we cater to them. -- spin-drift
Nobody ever called 911&said I just did something smart. -- TheFlynDutchman
3/2/2026 4:56:24 PM EDT
[#1]
I had an Enco version of the RF45 mill. It might be the same style. It took R8 tooling and was pretty capable. I added a DRO but left it a manual. I sold it when I moved and have a Bridgeport now.
If I was pressed for space I'd buy another rone.

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