ZTW spindle setup

You can post the images of your ZTW CNC setups, with a brief description.

ZTW spindle setup

Postby Daedelus » Thu Oct 03, 2013 3:56 pm

I think this has been posted on these forums before but I thought I'd share my own setup.
I do a lot of probing for my software product which essentially means that the tool needs to be grounded. This is my old setup:

20130819_111739.jpg


The problem with this clip is that:
1. I can and have forgotten to attach the clip meaning there is no continuity between the tool and surface and therefore the tool often breaks and embeds itself in the workpiece and puts a big hole in the surface.

2. I can and have forgotten to remove the clip after probing and before the spindle starts up. This tends to grind away at the colet as it spins at ~8000rpm, plus it makes a horrific noise.

The only part of the spindle which offers continuity to the tool is the nut at the top.

The solution then:

20131003_120853.jpg


Here I have used an old feeler gauge to act as a spring to contact the nut. A wire is connected to the spring which is then grounded.
So, the tool is always grounded now which eliminates the problems.
http://www.autoleveller.co.uk/. Probing and height adjusting GCode software for PCB's or any probe-able surface.

http://www.autoleveller.co.uk/cnc-probe-guide. A short guide to setting up the probe.

-James
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Re: ZTW spindle setup

Postby johntech » Thu Oct 10, 2013 10:18 am

That is the same method I posted a while back and it does work nicely! I may have posted it on the Wiki too.

John
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Re: ZTW spindle setup

Postby Daedelus » Sun Oct 13, 2013 10:16 am

Thanks John,

I knew it had been posted before but couldn't find it on the wiki.
Its a good idea and worth posting on the wiki IMHO if its not already there. Feel free to use my pics or text if you need to :)
http://www.autoleveller.co.uk/. Probing and height adjusting GCode software for PCB's or any probe-able surface.

http://www.autoleveller.co.uk/cnc-probe-guide. A short guide to setting up the probe.

-James
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Re: ZTW spindle setup

Postby johntech » Sun Oct 13, 2013 11:15 am

It is located in my Troubleshooting Tips section on the Wiki.

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Re: ZTW spindle setup

Postby Daedelus » Sun Oct 13, 2013 1:58 pm

OK got it. :)
The only thing is, I found your post originally through a google search and it seems difficult to find on the wiki IMO.
Maybe this should be a separate article as well on the wiki, posted under the spindle heading. Just a thought.
http://www.autoleveller.co.uk/. Probing and height adjusting GCode software for PCB's or any probe-able surface.

http://www.autoleveller.co.uk/cnc-probe-guide. A short guide to setting up the probe.

-James
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Zen Model: Zen 0707

Re: ZTW spindle setup

Postby johntech » Sun Oct 13, 2013 11:20 pm

I'll see if I still have access to make changes to the Wiki

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