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CNC Router
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  dcorb

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Posted: June 16 2015 at 9:31pm | IP Logged Quote dcorb



















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  dcorb

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Posted: June 16 2015 at 10:09pm | IP Logged Quote dcorb

Trying to keep a running list on the cost of the build. So far I have this:

$40.00 24 foot of 2" square tube

12 mm SC12UU Linear Ball Bearing Slider Slide Bushing Replacement CNC New
Quantity: 4
$11.98

12mm Linear Rail Shaft Support F XYZ Table CNC Router Milling MA
Quantity: 8
$13.96

2 inch Square Plastic Tubing Plug / End Cap Each
Quantity: 10
$9.90

Outer Diameter OD 12mm x 600mm Cylinder Liner Rail Linear Shaft Optical Axis
Quantity: 2
$37.98

12 mm SC12UU Linear Ball Bearing Slider Slide Bushing Replacement CNC New
Quantity: 8
$23.96

SC12UU 12mm Linear Rail Shaft Support F XYZ Table CNC Router Milling MA
Quantity: 12
$23.34

Multipurpose O1 Tool Steel, Tight-Tolerance Rod, 12MM Diameter, 3' Long   
Quantity: 3
$32.46

Leveling Mount, Easy Adjust, 3/8"-16 X 1" L Thread, 1-3/8" Base Diameter
Quantity: 4
$4.49

6.35 x 8mm CNC Motor Jaw Shaft Coupler 6.35mm To 8mm Flexible Coupling
Quantity: 3
$5.10

(3) NEMA23 381oz/in 3.5A Dual Shaft Stepper Motors.
$119.97

5 Axis Breakout Board and 3 - 1 Axis 3.5A TB6560AHQ Stepper Motor Driver Boards.
$79.96
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  molon labe

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Posted: June 16 2015 at 10:40pm | IP Logged Quote molon labe

How much to have you build one to sell to us?
What will its max cutting capacitites be, terms of
actual cutting ability and not work table size (how
deep in what materials)?
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  Paraquat

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Posted: June 17 2015 at 8:20am | IP Logged Quote Paraquat

I like rigid heads more than a gantry that moves. I don't know why more people don't build them like this. I guess the average MDF CNC builder doesn't require that much rigidity.
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  Paraquat

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Posted: June 17 2015 at 1:12pm | IP Logged Quote Paraquat

Is that a KP44 blank?
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  dcorb

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Posted: June 19 2015 at 11:29pm | IP Logged Quote dcorb

molon labe wrote:
How much to have you build one to sell to us?
What will its max cutting capacitites be, terms of
actual cutting ability and not work table size (how
deep in what materials)?


You would like my cost. A lot of the work was done by a friend. I do not think either of us would be interested in manufacturing.

This a DIY thing.
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  dcorb

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Posted: June 19 2015 at 11:32pm | IP Logged Quote dcorb

I never finished my 3D printer but have been thinking this is a prefect platform for a printer.   
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  dcorb

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Posted: June 19 2015 at 11:34pm | IP Logged Quote dcorb

Paraquat wrote:
Is that a KP44 blank?



Probably is. Stop snooping
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  tr6guns

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Posted: June 20 2015 at 7:27am | IP Logged Quote tr6guns

Love the Pictures, Dam nice work. Wish I had the computer smarts to program I would build one too.
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  Sora-tobu chiru

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Posted: July 09 2015 at 5:17pm | IP Logged Quote Sora-tobu chiru

I'm not big fan of a gantry type routers/plotters myself, but there is one "style" of them, which I may try in a small desktop machine(distant future - didn't finish my benchtop mill and EDM plotter yet).

Really nice thing about them, is table rails/bearings arrangement(similar to one used in moving gantry machines).

Picture is worth a thousand words, so some examples below:

orginal mind cobra




sable



unicut


By "try it" I mean to build one myself, as all above are overpriced chicom(don't get confused by .nl and .jp) crap...


And...



from what I understand, it is belt driven, plywood machine, capable of machining aluminium.
Source of rigidity is quite obvious
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  yaybacon

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Posted: July 11 2015 at 7:23am | IP Logged Quote yaybacon

so jealous y.y this week I revisted getting this cnc my dad bought 2 years ago working(he didn't consult me before buying the first thing he saw on the ebay)... the leadscrews came slightly bent, so it gets a bind and stalls the motors. Which I previously gave up on after forever of trying to readjust and tighten the motors to stop the stalling, finally after years it came to me to do just the opposite and leave the leadscrews completely loose on the side opposite the motors. then after running for only 2 hours, the controller it came with caught on fire. I think he payed $1300 too. for a 23"x13x3"  movement, stalls above 10ipm and has a plastic frame

-edit- oh and forgot to add the hole for the setscrew connecting the Z axis to the motor, supports the full weight of the spindle and was tapped high, right on the edge of the leadscrew shaft. and yeah.. thats why there is a giant hole in the middle of the table.

cut these panels with it, and have been literally pacing around trying to think of what to use it for next love 3dmodeling stuff y.y







what is everyone using their cnc's to cut?

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  backbencher

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Posted: July 11 2015 at 12:01pm | IP Logged Quote backbencher

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  Sora-tobu chiru

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Posted: July 12 2015 at 6:42am | IP Logged Quote Sora-tobu chiru

So, is 12L14 available in flat stock?
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Eugene M. Stoner
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  dcorb

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Posted: September 13 2015 at 1:01am | IP Logged Quote dcorb

Update





























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  Paraquat

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Posted: September 23 2015 at 11:04am | IP Logged Quote Paraquat

This may seem dumb, and I've only done minor Google searches, but I have an Arduino, Big Easy driver, and a NEMA 17 motor. Everything functions as it should, until I put any load on the motor.

I'm only running it at 5 volts now until my power supply arrives but I'm wondering if torque will increase once I increase the power supplied to the driver?
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  Paraquat

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Posted: September 24 2015 at 8:03am | IP Logged Quote Paraquat

Yup.

As soon as I put 12 volts on the driver the motor started clicking to life. I had an extra zero in the acceleration variable (I forgot I was playing around, testing the limits of the motors) and once I made the values for RPM and acceleration more realistic everything functioned as intended.
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  Metatron

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Posted: April 10 2016 at 1:20pm | IP Logged Quote Metatron

I am wanting to design a or find a design of a cnc router that will cut 7075 or 6061 T6 in your opinion  what size motors should I get for the axis's.

If that goes well I have plans for a multi head unit for production parts.

4 axis would be cool too
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  Jwestie15

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Posted: September 24 2016 at 10:01pm | IP Logged Quote Jwestie15

nema 23 steppers, some serious bearings and lead screws, and a 2.2kW water cooled spindle from china would do you good
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  Paraquat

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Posted: September 26 2016 at 8:12am | IP Logged Quote Paraquat

I actually dug out my CNC-duino board. This would be a good winter project. I keep hanging myself on details and instead of getting something running I keep over engineering it in my head.

Caught a new line of plastic rails. Not sure how much I'd trust them for milling but I saw some cool calligraphy bots. Igus.com makes them.
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