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home built z's postem up if any

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HammerDownJustin
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home built z's postem up if any

Postby HammerDownJustin » Wed Apr 13, 2016 9:39 pm

Just curious how many people built there own z axis? I'm thinking about building one for the cnc router table Im fixing to do. Mine on my homebuilt table was a kit from droid cnc or whatever his name was out of Oklahoma years ago.. Thank you just wanting some fresh ideas.
Home built 5x10 table CandCNC electronics
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Thor
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Re: home built z's postem up if any

Postby Thor » Wed Apr 13, 2016 10:20 pm

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HammerDownJustin
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Re: home built z's postem up if any

Postby HammerDownJustin » Mon Apr 18, 2016 4:44 pm

Pretty nice
Home built 5x10 table CandCNC electronics
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acourtjester
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Re: home built z's postem up if any

Postby acourtjester » Mon Apr 18, 2016 7:41 pm

Here is mine
router and parts (5).JPG

Z drive parts (3).jpg

motor drive install (6).JPG

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HammerDownJustin
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Re: home built z's postem up if any

Postby HammerDownJustin » Mon Apr 18, 2016 9:19 pm

Are the screw drives very hard to figure out the steps when setting motors up? Fixing to start a wood router table next for the wood shop. My current z on my plasma table is rack and pinon.
Home built 5x10 table CandCNC electronics
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Simko
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Re: home built z's postem up if any

Postby Simko » Mon Apr 18, 2016 9:42 pm

HammerDownJustin wrote:Are the screw drives very hard to figure out the steps when setting motors up? Fixing to start a wood router table next for the wood shop. My current z on my plasma table is rack and pinon.


I just set mine up on Sunday. My z is direct coupled (no belt reduction) If you know the screw pitch, it's pretty easy. 0.200" pitch is 5 turns per inch, 0.100" pitch is 10 turns per inch. Some screws are rated in threads per inch and number of starts. A 10 thread per inch, 2-start screw is the same as a 5 turn per inch screw. A 10 thread per inch, 1-start screw is the same as a 10 turn per inch screw.

Number of threads per inch divided but the number of starts = number of turns per inch.

Pitch = 1" / number of turns per inch.

Number of steps for one rev of stepper - 200
10x micro stepping = 200 revs X 10 =2000 steps per rev
0.200" pitch screw is 5 turns per inch X 2000 steps per rev (turn) = 10,000 steps per inch

I used exactly 10,000 steps when I set mine up and I was within 0.0005" (yes,a half thousandth)

I would say they are easier to set up than rack and pinion.
Steve

Homebrewed plasma table in the works, NSK linear rails, 3.2:1 belt reduction, CandCNC Plazpak 1A with DTHCIV Ethercut, Hypertherm 85, Linux CNC and SheetCAM
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HammerDownJustin
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Re: home built z's postem up if any

Postby HammerDownJustin » Tue Apr 19, 2016 11:08 pm

Thank you and yep when i set my rack and pinon up it was easy because there was a company that used to have a online calculator that gave you the number,,
Home built 5x10 table CandCNC electronics
Miller 251 Mig
And lots of other cool stuff...

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acourtjester
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Re: home built z's postem up if any

Postby acourtjester » Wed Apr 20, 2016 10:32 am

Setting up the Z for a lead screw is easy just use Mach's "Steps per" cal under settings page. quick and easy no math involved.
I used rack Z on my first table but changes as the torch would drop when power was removed.
DIY 4X4 Plasma/Router Table
CandCNC DTHC-IV & Feather Touch
Hypertherm PM65 Machine Torch
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exapprentice
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Re: home built z's postem up if any

Postby exapprentice » Wed Apr 20, 2016 11:50 am

Somewhere in one of CandCNC manuals you can find the equation for calculating how to change the number of steps based over a distance to fine tune your table ;)
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Exapprentice :D
(Pete)
10'x5' DIY table / PM 45XP + M/C Torch - Trying to add 4 axis Tube cutting :(
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leggman
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Re: home built z's postem up if any

Postby leggman » Sun Jun 05, 2016 9:22 pm

My first build. works great
IMG_20160603_1311136_rewind.jpg
IMG_20160603_1312188_rewind.jpg
IMG_20160603_1312045_rewind.jpg
IMG_20160603_1311258_rewind.jpg
IMG_20160603_1311136_rewind.jpg

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Mckenny87sj
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Re: home built z's postem up if any

Postby Mckenny87sj » Thu Jul 07, 2016 2:32 am

Holyshit leggman that was the best i have ever seen


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