Here is the CNC Router/Mill/ 3D Printer I am planing to build.

The X & Y Axis are Used Slides and BallScrews.
I have a lot of the materials to Make the Aluminum Frame Connections and the 80/20 frame.
I have ordered a 500 MM Ball Screw from China.  I need to order some Stepper Drives that will work with some 1600 oz/ Inch steppers.

I like the Steppers that are the Unipolar/BiPolar wound motors they are more configurable.
Does anyone know what the advantages and disadvantages of these configurations are.

http://www.ebay.com/itm/NEMA-34-Stepper-Motor-1600oz-in-150mm-5-7A-or-2-8A-80VDC-5-6A-Digital-Drive/121036799688?rt=nc&_trksid=p2047675.m1851&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D163%26meid%3D2607610805068478823%26pid%3D100005%26prg%3D1088%26rk%3D1%26rkt%3D4%26sd%3D200582265129%26
  I would like to get this project done before Christmas but I don't think I can.
Ordering the parts from China will probably take longer than that.

How do you know if the motors you have selected are big enough? The ones on the used assemblies are 300 oz/inch
the one for the Z is the one mentioned above 1600 oz/inch

Again the Z ball Screw is .196" Pitch 5mm With a 10:1 Mechanical advantage  the torque at 1500 RPM drops 60%.


So 1600 oz/in is 100 LB/in Torque With a 10: to 1  Ball Screw Mechanical advantage  its 1000/Lb/inch torque and  times .6 = 600LB/inch torque. Also the Ball Screw is only 16mm or 0.6299194 inches so the number is  1.587 larger 950 Lbs
This mortor should have enough torque to lift 950 Pounds. right ???? This is a question???????
I don't know if this is correct Seems Like I don't need a motor this big.

Does someone have the torque formulas??? You can tell I am worried about the Z axis having enough torque to lift 75 pounds of X and Z + Spindle.


what do you think

Quote from Allgood-Energy on November 17th, 2013, 09:14 PM

Here is the CNC Router/Mill/ 3D Printer I am planing to build.

The X & Y Axis are Used Slides and BallScrews.
I have a lot of the materials to Make the Aluminum Frame Connections and the 80/20 frame.
I have ordered a 500 MM Ball Screw from China.  I need to order some Stepper Drives that will work with some 1600 oz/ Inch steppers.

I like the Steppers that are the Unipolar/BiPolar wound motors they are more configurable.
Does anyone know what the advantages and disadvantages of these configurations are.

http://www.ebay.com/itm/NEMA-34-Stepper-Motor-1600oz-in-150mm-5-7A-or-2-8A-80VDC-5-6A-Digital-Drive/121036799688?rt=nc&_trksid=p2047675.m1851&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D163%26meid%3D2607610805068478823%26pid%3D100005%26prg%3D1088%26rk%3D1%26rkt%3D4%26sd%3D200582265129%26
  I would like to get this project done before Christmas but I don't think I can.
Ordering the parts from China will probably take longer than that.

How do you know if the motors you have selected are big enough? The ones on the used assemblies are 300 oz/inch
the one for the Z is the one mentioned above 1600 oz/inch

Again the Z ball Screw is .196" Pitch 5mm With a 10:1 Mechanical advantage  the torque at 1500 RPM drops 60%.


So 1600 oz/in is 100 LB/in Torque With a 10: to 1  Ball Screw Mechanical advantage  its 1000/Lb/inch torque and  times .6 = 600LB/inch torque. Also the Ball Screw is only 16mm or 0.6299194 inches so the number is  1.587 larger 950 Lbs
This mortor should have enough torque to lift 950 Pounds. right ???? This is a question???????
I don't know if this is correct Seems Like I don't need a motor this big.

Does someone have the torque formulas??? You can tell I am worried about the Z axis having enough torque to lift 75 pounds of X and Z + Spindle.


what do you think

Hi  Allgood, I just found your post here. I built a 5' x 5' CNC plasma cutting machine. Don't remember the stepper motor sizes, I will look them up for you and post them, should give you some idea of what your up against.
I used rack and pinion for all the movements except the Z axis, which I used a 3/8" double start acme thread lead screw.
 Here is a thread where I posted some photos of my build.
http://www.open-source-energy.org/?tid=858

Ok Allgood, I looked up the sizes of steppers that I used on my machine, used 3 Nema 34 740 oz. and one Nema 23 510 oz. for the Z axis. I have two steppers moving the gantry load Y axis, one is reverse rotation of, and slaved to the other. The third moving the X axis. Also all three steppers are driving belt reduction boxes, then the boxes are geared and spring loaded to the gear racks. Well hope this helps.:D

Allgood here something that might interest you
http://grabcad.com/library/diy-cnc--1

[/quote]Hi  Allgood, I just found your post here. I built a 5' x 5' CNC plasma cutting machine. Don't remember the stepper motor sizes, I will look them up for you and post them, should give you some idea of what your up against.
I used rack and pinion for all the movements except the Z axis, which I used a 3/8" double start acme thread lead screw.
 Here is a thread where I posted some photos of my build.
http://www.open-source-energy.org/?tid=858[/quote]Hey Thanks Jeff
You the Man!! :P

Hey I received the Z Ball Screw Yesterday.

http://www.ebay.com/itm/1pcs-antibacklash-ball-screw-1605-L500mm-C7-BK-BF12-2pcs-6-35-10mm-couplers-/290825166754?pt=LH_DefaultDomain_0&hash=item43b687dfa2

 I ordered it from China on the 9th and got it yesterday. So 11 days not bad.
They provided a Shipping Tracking number but once it hit San-Fran the
Tracking stopped It took 6 Days form there to Utah.
 
I have posted some pictures and Docs for this 500 mm Ball Screw.
I think this is a good product for what I paid for it. $100
We will See How well it performs and Accuracy When I get it working. Holding Judgement till then.

I ordered a Stepper and Driver When I get them I will Share that as well.

Quote from Allgood-Energy on November 21st, 2013, 11:59 AM

Hi  Allgood, I just found your post here. I built a 5' x 5' CNC plasma cutting machine. Don't remember the stepper motor sizes, I will look them up for you and post them, should give you some idea of what your up against.
I used rack and pinion for all the movements except the Z axis, which I used a 3/8" double start acme thread lead screw.
 Here is a thread where I posted some photos of my build.
http://www.open-source-energy.org/?tid=858[/quote]Hey Thanks Jeff
You the Man!! :P

Hey I received the Z Ball Screw Yesterday.

http://www.ebay.com/itm/1pcs-antibacklash-ball-screw-1605-L500mm-C7-BK-BF12-2pcs-6-35-10mm-couplers-/290825166754?pt=LH_DefaultDomain_0&hash=item43b687dfa2

 I ordered it from China on the 9th and got it yesterday. So 11 days not bad.
They provided a Shipping Tracking number but once it hit San-Fran the
Tracking stopped It took 6 Days form there to Utah.
 
I have posted some pictures and Docs for this 500 mm Ball Screw.
I think this is a good product for what I paid for it. $100
We will See How well it performs and Accuracy When I get it working. Holding Judgement till then.

I ordered a Stepper and Driver When I get them I will Share that as well.[/quote]Hello Thomas, looks good. This going to be used for the Z axis?:D

Quote from Jeff Nading on November 21st, 2013, 02:35 PM

Quote from Allgood-Energy on November 21st, 2013, 11:59 AM

Hi  Allgood, I just found your post here. I built a 5' x 5' CNC plasma cutting machine. Don't remember the stepper motor sizes, I will look them up for you and post them, should give you some idea of what your up against.
I used rack and pinion for all the movements except the Z axis, which I used a 3/8" double start acme thread lead screw.
 Here is a thread where I posted some photos of my build.
http://www.open-source-energy.org/?tid=858

Hey Thanks Jeff
You the Man!! :P

Hey I received the Z Ball Screw Yesterday.

http://www.ebay.com/itm/1pcs-antibacklash-ball-screw-1605-L500mm-C7-BK-BF12-2pcs-6-35-10mm-couplers-/290825166754?pt=LH_DefaultDomain_0&hash=item43b687dfa2

 I ordered it from China on the 9th and got it yesterday. So 11 days not bad.
They provided a Shipping Tracking number but once it hit San-Fran the
Tracking stopped It took 6 Days form there to Utah.
 
I have posted some pictures and Docs for this 500 mm Ball Screw.
I think this is a good product for what I paid for it. $100
We will See How well it performs and Accuracy When I get it working. Holding Judgement till then.

I ordered a Stepper and Driver When I get them I will Share that as well.[/quote]Hello Thomas, looks good. This going to be used for the Z axis?:D[/quote]Yep this will be driven by a 1200 oz/in motor and Leadshine DM870.
What Breakout boards do you like?

Thomas, the breakout board I have came with the kit. I would say it really depends on what you want to do and how many I/O'S you need. USB or parallel port. Here is a link that will help to find a good board and the pros and cons of both.:D
http://www.cnccookbook.com/CCBreakoutBoards.htm

Here is a very good forum for CNC builders :cool::D:P
http://www.cnczone.com/forums/#a-3d_printers

Quote from Jeff Nading on November 21st, 2013, 04:48 PM

Thomas, the breakout board I have came with the kit. I would say it really depends on what you want to do and how many I/O'S you need. USB or parallel port. Here is a link that will help to find a good board and the pros and cons of both.:D
http://www.cnccookbook.com/CCBreakoutBoards.htm

Here is a very good forum for CNC builders :cool::D:P
http://www.cnczone.com/forums/#a-3d_printers

Here is the Breakout board I have settled on.

It is Opto Isolated with LED's on all INs and Outs.

http://www.homanndesigns.com/store/index.php?main_page=product_info&cPath=22&products_id=59

problem is they are closed until Dec3.

also I think the Parallel Port is going the way of the dinosaur so I am thinking a Ethernet Fast I/O card may be the way to go. the ESS Card.

http://www.cncrouterparts.com/ethernet-smoothstepper-p-229.html

What do you think of these boards?
:P

Quote from Allgood-Energy on November 26th, 2013, 08:25 PM

also I think the Parallel Port is going the way of the dinosaur so I am thinking a Ethernet Fast I/O card may be the way to go. the ESS Card.

How about a USB solution:
http://www.planet-cnc.com/

They include the board and some nice Windows driven software for controlling and configuring everything.  I get regular updates that fix small bugs and enhance the feature set.  Works really good for me.  I'm soon to find out how well it will work for 3D Printing.

Thomas if you don't want to wait on those boards, I think Matt has the very best solution for you and I think as it stands now I would go with USB as well.:D

Quote from Jeff Nading on November 27th, 2013, 03:12 PM

Thomas if you don't want to wait on those boards, I think Matt has the very best solution for you and I think as it stands now I would go with USB as well.:D

Also Thomas, from what I can tell, the board you are looking at is an interface between the PC and the breakout board. I don't think it replaces the breakout board. I have heard the smooth stepper configuration could be problematic and finicky.