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I am interested in upgrading my mach software to the mach4. I use a THC301 and have found that the ESS smoothstepper I need to upgrade with my parallel ports is only offered by one company. I am...

I am using Mach3 software with a THC300 and just replaced the BOB.

I am a bit confused to how to set my Z axis. It doesn't seem to sit right on the machine when it runs. I can set up my go to zero...

I am using Mach3 software with a THC300 and just replaced the BOB.

I am a bit confused to how to set my Z axis. It doesn't seem to sit right on the machine when it runs. I can set up my go to zero...

So great news!!! I got it running!!!! So happy!!
Bad news is the z axis is just not right. It's too low. Seems to always goes up to low and sits on the metal way to low. It touches the table but...

Well I got the whole machine to run..shut it off and forgot to save my setting so the Z axis went back to red (LED) and couldn't find the table again. So sad. I was all ready to start the actual...

Hi Russ,

So I tested the z - home switch and found that it had the wrong pin assigned (getting smarter about testing:) ).

So now when I manually push on the z-sensor it does come on the...

[QUOTE=CNCMAN172;1916150]Look on the Diagnostics page the last tab. When you reference the Z axis it should start moving upward towards a home switch or a electronic sensor. These sensors come in...

Closer I will take:) so stupid question.. Where is the signal page and how do I manually press the switch. I did test it on the BOB and it lights up so I know it does work.

Sorry for the neive...

Well I just must be missing something because I can not get this thing to set correctly. I don't understand.
I set all to home (go to Z) and that is fine. I hit start cycle and the z goes all the...

So looks like we are back in business (at least with a running machine). It was a bad BOB.
All axis is running. Now I just need a little help setting the dimensions of the table and the Z axis....

[QUOTE=CNCMAN172;1907392]Jenn,

I don't see your notes. Maybe it did not save before you posted or something. Regardless I agree this looks like the BOB has been damaged. I repair boards, this...

[QUOTE=CNCMAN172;1899588]Jenn,

Let's start from the top and work our way down. To start with you need to understand what all this stuff does so it will be easier for you to understand and...

Hi Russ,

Sorry for the lapse of time. No definitely didn't give up. I got a bit busy with day job and a few side projects I do. Back at it this wk.

I am going to re-read all the instructions...

Yup a small humming noise..is heard

This is what we got

[QUOTE=CNCMAN172;1899736]Jenn,
It might be easier to find the fuse at an automotive store like NAPA, Autozone, Advanced Auto, etc. Newer cars use flat looking fuses but the auto stores have the...

Is this it?

It's plugged into a 120

First paragraph yes we did all that. The green light does not come on when I power on. How do I check the fuses?@

Hello Russ,

We performed this task today (hopefully correctly).

The top black regulator (see picture) - LM7812C

We connected the voltage meter to the center pin to the top pin (4v) and then...

Russ,

Omg thank you for the details and wow little freaked out about this step but we will get it done.

When you say the black regulators you mean the black boxes? The numbers on the side of...

Hi Russ,

so I was able to remove the BOB. Here are the shots.

I believe he made the machine. They are step motors (attached pic) and it is a 4 axis table.

Ok. I will take the board out so we can see the entire board. That won't be too bad. Should be able to get that tomorrow.

Thank you again for your help.

Jenn

Ok I hope this helps in learning the issues.

That makes me feel better! thank you so much!

Stay tuned for photos soon. Will try and take as many to help as I can.

Russ - thank you! I will take a photo of the board that I can see. Hopefully it will help in guidance.

A few naive question (still learning lingo, and testing methods so sorry if this comes...

I did a parallel port test - exactly like YouTube video here: https://www.youtube.com/watch?v=uglCm_qsojk

Those worked exactly as shown in the video. I checked pins 2-9. dir pins. I received...

No I have not unplugged the motors. Chinese drives? No I don't believe so. We bought the table used how could I tell if it's the Chinese drives or if the drive is dead?

I screwed something up. The Mach3 was finally running and I only had to set my motor home/limits and then.......i started the computer one day and nothing...no motors are moving.The DRO shows...

I installed the Mach3 software to a new computer with brand new ports. I was able to get the machine to function but it seems the Z axis and the A axis are not running. I am wondering if this is due...