Changing the Z-Axis threaded rod

[Don Drumm]

Like many other people I had the Z-Axis change position on  me during cutting. I greased the rod, replaced it with 5/16 18 tpi and new brass nuts ( the original mechanism). I continued to have a issue. I had problems with just homing the system. I increased the current on the motor driver, with no effect.  

I just changed the threaded rod with an Acme thread 8 mm 200 mm long lead screw I bought from Amazon for $9  ( https://www.amazon.com/gp/product/B07B63CVSJ/ref=od_aui_detailpages00?ie=UTF8&psc=1  ). I also got 2 Anti-backlash spring loaded T8 Nuts for $8  ( https://www.amazon.com/gp/product/B077XCC994/ref=od_aui_detailpages00?ie=UTF8&psc=1 ). I had to change the  Z-axis machine settings to 400 steps per mm and everything works fine, so far. The system is much quieter and smoother action.

 I had to dremel the slot and widen the upper nut clearance, and file the flats  on the end. I also cut off one of the long ends of one of the spare nuts to make a nut to hold the bearing, which fits beautifully. The Z-axis motor does not wobble like it did before. I held the nut in the slot with wire through one of the holes, but this seems to work much better. 

I've attached pictures of my assembly.

I'm interested in anybody's response. The Bob's CNC has such great potential and I've really enjoyed learning the CNC process and using it.

Don Drumm

[Derek Fryer]

I've had the same issue especially with hardwoods on my e4 I just recieved the parts and look forward to modeling your this weekend did you end up with any issues after a while?

[Courtney Blackburn]

I cant open my ugsplatform. I think it may have to do with the fact that my husband decided to update java. I am in freak out mode because I need to create something for a client and now I can not open the program to carve. Help!!

Thanks 

You guys are the best

Not a happy way to end my mother's day.  Lol

Courtney 

On Tue, May 5, 2020, 8:15 PM Derek Fryer <dere...@gmail.com> wrote:

I've had the same issue especially with hardwoods on my e4 I just recieved the parts and look forward to modeling your this weekend did you end up with any issues after a while?

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[Help Desk]

Try to reinstall it again.  Please see the attached file.

Also, It sounds like you may need to clear the cache. Please see here for help clearing the cache: https://support.bobscnc.com/hc/en-us/articles/360008660133-Clearing-the-Cache-in-UGS With newer versions the .ugsplatform will be in the same directory as the .ugs

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[Courtney Blackburn]

Ok cool! I will try that.

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[Courtney Blackburn]

I tried it but it still doesn't work.

This is what it looks like 

[Bob Wood]

This is the classic version. We recommend the Platform version.

Please see the attached df for help with setup.

Bob

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[Courtney Blackburn]

It opens for a second now but then disappears 

[Courtney Blackburn]

On Sun, May 10, 2020, 7:45 PM Courtney Blackburn <photosby...@gmail.com> wrote:

[Help Desk]

It sounds like you may need to clear the cache. Please see here for help clearing the cache: https://support.bobscnc.com/hc/en-us/articles/360008660133-Clearing-the-Cache-in-UGS With newer versions the .ugsplatform will be in the same directory as the .ugs

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[Courtney Blackburn]

I keep clearing the cache but it doesn't work

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[Help Desk]

Do you have java blocked with a virus software?

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[Courtney Blackburn]

Let me check 

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[Bob Wood]

Also, use the dropdown to select a port then change the baud rate to 115200

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[Courtney Blackburn]

It wont stay open long enough for me to do that. My husband checked the virus blocking programs and he said that they are not blocking java.

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[Courtney Blackburn]

Oh and the baud is already set to that. I could see it in the second that it was open

[Help Desk]

Delete the program, clear the cache and then install the program again.  If that does not work you might need to ask the folks that produce UGS.

Or you can try the platform version. Please see the attached pdf.

Bob

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[Courtney Blackburn]

I got it open. But now I am getting some errors. Trying to figure that out next . Thanks for helping me

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[Courtney Blackburn]

Alarm 10

[Courtney Blackburn]

This is homed

[Help Desk]

Does this show idle when you home?

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[Courtney Blackburn]

No. It just says alarm 

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[Courtney Blackburn]

On Sun, May 10, 2020, 7:45 PM Courtney Blackburn <photosby...@gmail.com> wrote:

[Help Desk]

Looks like you have installed the incorrect firmware. Please reinstall the firmware using the E4_flash.bat file.

Bob

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[Courtney Blackburn]

Ok. Thank you very much

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[Courtney Blackburn]

I have an E3. Should I still install the E4 version 

On Tue, May 12, 2020, 8:28 PM Help Desk <help...@bobscnc.com> wrote:

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[Help Desk]

Sorry, load with the E3_Flash.bat

Bob

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[Courtney Blackburn]

Now I can home it but non of  the controls to jog will work. 😢

I am so sorry to bug you again

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[Help Desk]

Please see the attached pdf for help with jogging.  What are your jog settings? Are you in inches?

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[Courtney Blackburn]

Yes inches. It acts like it wants to but the machine wont move. Just makes noises.

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[Help Desk]

Step size? Feed rate?  Please see the pdf.

Bob

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[Courtney Blackburn]

That did it!!! 

You are my freaking hero. So sorry for being such a pain. 

Thanks a billion!!

Courtney 

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[Help Desk]

Awesome!

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[Courtney Blackburn]

You saved my marriage! Lol

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