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Old 04-16-2012, 02:02 PM   #16
Tman66
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http://www.cnczone.com/

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Old 04-17-2012, 07:37 PM   #17
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Originally Posted by SimpleSimon View Post
I have a similar model. I think you are better off just selling the round column and buying a BF-20, X3 or RF45 square column. There are turn-key conversions for the square column mills that are considerably less and the square column mills can be bought for what you can sell that round column for.

My 2 cents.
Yes, I've come to the same conclusion. I'm going to pick up a BF-20 for conversion and keep the RF-40 for manual until I sell myself on a bridgeport.
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Old 04-18-2012, 07:15 AM   #18
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I looked at the Grizzly G0704 http://www.grizzly.com/products/Dril...th-Stand/G0704, which is a BF20 clone and while it is about $1000, the Grizzly CNC conversion kits are $4000 to $7600. http://www.grizzly.com/search/search...20429875028370 I am assuming you can do it much cheaper your self.
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Old 04-18-2012, 07:22 PM   #19
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Originally Posted by GSWayne View Post
I looked at the Grizzly G0704 http://www.grizzly.com/products/Dril...th-Stand/G0704, which is a BF20 clone and while it is about $1000, the Grizzly CNC conversion kits are $4000 to $7600. http://www.grizzly.com/search/search...20429875028370 I am assuming you can do it much cheaper your self.
I'm currently looking at the CNC4PC servo cnc kit. 4 motors, drivers, breakout card, power supplies all in a prefab box for 1800. You can go cheaper by picking seperate components but this package is so easy. The 300+ inch/amp motors should drive that mill just fine
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Old 04-18-2012, 07:34 PM   #20
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Originally Posted by RonS View Post
I'm currently looking at the CNC4PC servo cnc kit. 4 motors, drivers, breakout card, power supplies all in a prefab box for 1800. You can go cheaper by picking seperate components but this package is so easy. The 300+ inch/amp motors should drive that mill just fine
Have you seen these mounts? Sexy.

http://www.ebay.com/itm/Grizzly-G070...#ht_995wt_1392
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Old 04-18-2012, 09:04 PM   #21
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Nice looking mounts.
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Old 04-18-2012, 10:23 PM   #22
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It all depends on what you want to accomplish with it.
Router -> wood work
Small parts -> Chinese knockoffs
Serious work with idea of starting a shop -> big CNC mill with lot's of tooling!

In the end, they all cost lot's of $$$
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Old 04-20-2012, 07:21 PM   #23
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Originally Posted by Brunow - 007 View Post
It all depends on what you want to accomplish with it.
Router -> wood work
Small parts -> Chinese knockoffs
Serious work with idea of starting a shop -> big CNC mill with lot's of tooling!

In the end, they all cost lot's of $$$
This is more of an educational expirence that will allow me to produce small runs of accurate (relativly speaking) parts. Not sure where it will lead.

On a side note Grizzly appears to be out of stock on their BF20 knockoff. Now I'm torn. Need to look around or decide to convert my mill but that will require bigger motors.
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Old 04-21-2012, 04:00 AM   #24
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Why not just buy a used CNC Bridgeport? Under $2000 will get you one with nice tight ways. The controller will probably be antique, but the ball screws and motors will already be there. I'm assuming the controller can be replaced with a more modern one while reusing all the other parts.
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Old 04-21-2012, 04:46 AM   #25
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Have you considered a controller with conversational programing. After being a machinist for the last 30 years I had the opportunity to use a Kent knee mill with an Accurite Millpwr controller. Within a week of occasional use and an hour of so of basic instruction from a local salesman , I was program the thing. Now the non-cnc bridgeport has become a table for the Kent tooling.
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Old 04-21-2012, 10:20 AM   #26
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Originally Posted by PunkinHead View Post
Why not just buy a used CNC Bridgeport? Under $2000 will get you one with nice tight ways. The controller will probably be antique, but the ball screws and motors will already be there. I'm assuming the controller can be replaced with a more modern one while reusing all the other parts.
If I could find one I would. Been watching ebay and all I'm seeing in that class of mill are old Bridgeports with antique DRO's and $28,000 Jet Bridgeport knockoffs with CNC components already installed.
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Old 04-21-2012, 10:32 AM   #27
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Originally Posted by Racer111v View Post
Have you considered a controller with conversational programing. After being a machinist for the last 30 years I had the opportunity to use a Kent knee mill with an Accurite Millpwr controller. Within a week of occasional use and an hour of so of basic instruction from a local salesman , I was program the thing. Now the non-cnc bridgeport has become a table for the Kent tooling.
No I haven't considered conversational programming. Looks very interesting though. Part of what I'm trying to do is educate myself on CAD, CAM, CNC control and the components and tuning issues involved in setting them up. Looks like I need to add conversational programming to the list. It does seem that features of Mach3 are very conversational in nature though.
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Old 04-24-2012, 08:26 PM   #28
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So, this is what I'm ending up with:

New mill on order: http://www.grizzly.com/products/Dril...th-Stand/G0704

CNC components order being place tomorrow.

Control box with servo motors, drivers, control boards and enclosure: http://www.cnc4pc.com/Store/osc/prod...roducts_id=295.

6 axis pendent that will allow control over the DC motor spindle speed in addition to 4 axis’s: http://www.cnc4pc.com/Store/osc/prod...roducts_id=162

Probably start with LazyCam from Artisoft (Mach3) as well but for CAD (not going to use Solidworks afterall, too close of a tie to work if they cover my seat cost), this seems to be the best deal for under 1k a seat: http://www.alibre.com/products/hobby/

Anyone see a problem with going this direction?
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Old 04-24-2012, 08:49 PM   #29
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Quote:
Originally Posted by Brunow - 007 View Post
It all depends on what you want to accomplish with it.
Router -> wood work
Small parts -> Chinese knockoffs
Serious work with idea of starting a shop -> big CNC mill with lot's of tooling!

In the end, they all cost lot's of $$$
At this point it is more of a "relativly" cheap education. My plan is to learn what I can at low cost then look at converting a bridgeport (about $1500 more in conversion costs than this mill) if I can think of interesting stuff to do and/or make money. We'll see. I'll start posting pics as the components arrive.
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Old 04-25-2012, 07:50 AM   #30
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I have been using the Alibre for a couple of years for home projects, but I have not used it for CAM, and though I don't use it enough to get competent with it, it seems like a good product. I like it better than several other low cost CAD programs I have tried in years past. The process of 3D CAD is more like machining things so it is more intuitive to me than generating 2D drawings.
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