Basic Setup 3 Axis CNC Router - Recommendations
13 Oct 2014 20:26 #52020
by Meister_Petz
Basic Setup 3 Axis CNC Router - Recommendations was created by Meister_Petz
Hi,
often, I would like to cut out my digital drawings (dxf,...) using a cnc router instead of a saw
After watching some youtube videos, I found out that CNC Routers can be built. Unfortunately I'm not quite sure, what hardware is necessary between the whole mechanic part (table, axis, ... ) and linuxcnc.
Probably there is a stepper motor for each axis. But what do I need in addtion?
Is that enough?
www.ebay.de/itm/25141118
Some Data:
Material to be cut: 95% wood, Rest: PVC, Acryl, Alumium (thin sheets)
Accuracy: 1-0,5 mm
Work Piece Maximum Size: 100 cm x 50 cm
Option for a 4th Axis (for rotating zylindric objects)
Speed: I don't care
Router: Makita 700 W router
Price: low
Connector: Preferably USB
Spindle: threaded bar (M10?)
Background Knowledge:
I'm an IT-Guy with severe wood working and metal working skills.
Many Thanks for your help!
Petz
often, I would like to cut out my digital drawings (dxf,...) using a cnc router instead of a saw
After watching some youtube videos, I found out that CNC Routers can be built. Unfortunately I'm not quite sure, what hardware is necessary between the whole mechanic part (table, axis, ... ) and linuxcnc.
Probably there is a stepper motor for each axis. But what do I need in addtion?
Is that enough?
www.ebay.de/itm/25141118
Some Data:
Material to be cut: 95% wood, Rest: PVC, Acryl, Alumium (thin sheets)
Accuracy: 1-0,5 mm
Work Piece Maximum Size: 100 cm x 50 cm
Option for a 4th Axis (for rotating zylindric objects)
Speed: I don't care
Router: Makita 700 W router
Price: low
Connector: Preferably USB
Spindle: threaded bar (M10?)
Background Knowledge:
I'm an IT-Guy with severe wood working and metal working skills.
Many Thanks for your help!
Petz
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14 Oct 2014 07:29 #52073
by andypugh
I can't see the auction, so don't know what it was for, but consider soemthing like
www.ebay.co.uk/itm/DE-Ship-4Axis-Nema23-...achine-/321550370700
as a starting point.
In practice you probably won't finish up with that, but it will get you started. I bought one of those kits, and the PSU and one motor survive
But in the process I learned what I actually needed, and that kit did work, I just got more ambitious.
USB is a "No" for linuxCNC. it doesn't fit the LinuxCNC control model. (USB can take a few mS to transmit data, LinuxCNC is the controller, and relies on <1mS response times from hardware.
PCI, Parallel port and Ethernet all manage latency in the region of a few uS.
Replied by andypugh on topic Basic Setup 3 Axis CNC Router - Recommendations
www.ebay.de/itm/25141118
I can't see the auction, so don't know what it was for, but consider soemthing like
www.ebay.co.uk/itm/DE-Ship-4Axis-Nema23-...achine-/321550370700
as a starting point.
In practice you probably won't finish up with that, but it will get you started. I bought one of those kits, and the PSU and one motor survive
But in the process I learned what I actually needed, and that kit did work, I just got more ambitious.
USB is a "No" for linuxCNC. it doesn't fit the LinuxCNC control model. (USB can take a few mS to transmit data, LinuxCNC is the controller, and relies on <1mS response times from hardware.
PCI, Parallel port and Ethernet all manage latency in the region of a few uS.
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14 Oct 2014 16:27 #52078
by Meister_Petz
Replied by Meister_Petz on topic Basic Setup 3 Axis CNC Router - Recommendations
perfect.. the auction was deleted...
USB:
unfortunately (or fortunately) all my hardware is Apple. So would it be possible to use a usb to parallel adapter and run lunxcnc in vmware fusion? If not... well I have to change to the dark side
Stepper Motor:
is a nema 23 powerful enough to support a 100 cm threaded bar (M10-M12)
Thanks for the fast answers
Petz
USB:
unfortunately (or fortunately) all my hardware is Apple. So would it be possible to use a usb to parallel adapter and run lunxcnc in vmware fusion? If not... well I have to change to the dark side
Stepper Motor:
is a nema 23 powerful enough to support a 100 cm threaded bar (M10-M12)
Thanks for the fast answers
Petz
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14 Oct 2014 16:52 #52080
by Meister_Petz
Replied by Meister_Petz on topic Basic Setup 3 Axis CNC Router - Recommendations
So a PC will be found!
I was looking at something lihe this (for example): www.ebay.de/itm/271630907966
3x Nema23 Stepper Motor 57BYGH627 270oz-in 76mm 3A 4-Lead SINGLE SHAFT
3x Stepper Driver with 4.2A DQ542MA replacing M542
Power Supply for 350W,36VDC
DB25 Breakout Board
should this fit my requirements (for the beginning)?
Many Thanks
I was looking at something lihe this (for example): www.ebay.de/itm/271630907966
3x Nema23 Stepper Motor 57BYGH627 270oz-in 76mm 3A 4-Lead SINGLE SHAFT
3x Stepper Driver with 4.2A DQ542MA replacing M542
Power Supply for 350W,36VDC
DB25 Breakout Board
should this fit my requirements (for the beginning)?
Many Thanks
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14 Oct 2014 16:56 #52081
by andypugh
I was in the same situation when I started.
It doesn't make any sense to try to run your CNC machine with the same computer as you use for your general purpose computing.
Because OSX is a Unix, it plays well with Linux. I often ssh into my CNC controllers using remote X-sessions from the iMac, for example. (and my CNC machines nfs mount a folder on the Mac to pick up CNC files).
Find a cheap PC with a parallel port to be your dedicated CNC controller, and install the LinuxCNC live-CD on it.
I run various versions of LinuxCNC under VMware, but only for testing, not for machine control. Lat6ency in VMware is incredibly bad, it could never run a CNC machine, not even one of the buffered Mach3-compatible controllers.
In principle you could dual-boot the Mac into Linux and use an Ethernet-interfaced controller. The Mesa 7i80 for example, but this would be extremely experimental. (Hmm, I might try that, just for fun
Replied by andypugh on topic Basic Setup 3 Axis CNC Router - Recommendations
unfortunately (or fortunately) all my hardware is Apple. So would it be possible to use a usb to parallel adapter and run lunxcnc in vmware fusion? If not... well I have to change to the dark side
I was in the same situation when I started.
It doesn't make any sense to try to run your CNC machine with the same computer as you use for your general purpose computing.
Because OSX is a Unix, it plays well with Linux. I often ssh into my CNC controllers using remote X-sessions from the iMac, for example. (and my CNC machines nfs mount a folder on the Mac to pick up CNC files).
Find a cheap PC with a parallel port to be your dedicated CNC controller, and install the LinuxCNC live-CD on it.
I run various versions of LinuxCNC under VMware, but only for testing, not for machine control. Lat6ency in VMware is incredibly bad, it could never run a CNC machine, not even one of the buffered Mach3-compatible controllers.
In principle you could dual-boot the Mac into Linux and use an Ethernet-interfaced controller. The Mesa 7i80 for example, but this would be extremely experimental. (Hmm, I might try that, just for fun
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14 Oct 2014 17:00 #52082
by andypugh
Yes, it should. The fact that it is three separate drives is a big plus-point.
what sort of machine do you want to control?
Replied by andypugh on topic Basic Setup 3 Axis CNC Router - Recommendations
I was looking at something lihe this (for example): www.ebay.de/itm/271630907966
should this fit my requirements (for the beginning)?
Yes, it should. The fact that it is three separate drives is a big plus-point.
what sort of machine do you want to control?
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