[wfbrown53]

ok. Me being a noob is showing. Talk about thinking too many solutions and visualizing them.
A CNCed rotary table + lathe chuck + Cnced Z axis, a threading tool could cut threads from Mach3 maybe? I know one could get a machine shop to do all this but I would rather try to use tools to make other tools if I can. I like challenges, just can't think it all through being a noob.

[hoss2006]

Sure that could work too if you use the threading tool like a threadmill, a rotary 4th wouldn't spin fast enough
to "turn" the threads like on a lathe.
The taps aren't too expensive on Ebay and you can resell them when you're done.
15/16-16 tap - $7.99
1 1/8-18 =$45
Hoss

[hoss2006]

The line driver and it's cover mounted on the motor.
Hoss

[arizonavideo]

Hi Hoss; I have a few questions on the line driver.

What are the ratings and what servo driver are you going to use to drive it?

I was thinking of making a line driver but I just didn't see anyone trying to use one in a servo spindle setup.

I would also expect the motor to run hotter or make a bit less power. To keep a motor in sink the driver has to make corrections by changing the current or voltage. This correction represents a fair amount of inefficiency. Power to make corrections is power that could have been used to rotate the spindle. I dont think that would be more than 10% but I don't have a good way to guess. The motor is a bit over sized so I would think it will work well.

Kind of a cool setup.

[hoss2006]

"The differential line driver can be used to convert single ended to differential signals.
Our servo drives accepts only differential encoder inputs, therefor single ended encoder signals must be
converted to differential before connecting them to our servo drives."
The line driver came with the encoder.
Hoss

[Connor]

Hoss, which pulleys are you using now? V-grove or timing belt? Which is better? How often do you switch between high and low pulley?

[tkostansek]

Hoss i saw one of your videos where you swapped out the bearings in your ballnut to get 0 backlash on you r roton screws. Im using the Linear motion screws and nuts and im getting .003 backlash. I have compesated for it in mach3 per your video but is there any way of removing some of this? These ball nuts dont have the tubes like yours did so im not sure how i would reload the bearing if i pull the nut off.

Thanks Hoss and you are an awsome source of info on here.

Tonyk STLOUIS

[hoss2006]

Hoss, which pulleys are you using now? V-grove or timing belt? Which is better? How often do you switch between high and low pulley?

Big L-belt timing pulleys. I using a single pulley and about to run 1:1.
Hoss

[hoss2006]

Hoss i saw one of your videos where you swapped out the bearings in your ballnut to get 0 backlash on you r roton screws. Im using the Linear motion screws and nuts and im getting .003 backlash. I have compesated for it in mach3 per your video but is there any way of removing some of this? These ball nuts dont have the tubes like yours did so im not sure how i would reload the bearing if i pull the nut off.

Thanks Hoss and you are an awsome source of info on here.

Tonyk STLOUIS

Not zero but can be less than .001.
You can add oversize balls to the linear motion nuts as well, not sure how big you can go.
This video will show you how to repack those nuts.
Repacking Linearmotionbearings Ballscrews - YouTube
Hoss

[wfbrown53]

Nice. Was going to remove the head to make column removal easier and noticed that my new G0704 already has three bolts to hold the head like your three bolt head mod. I think someone has been following Hoss's mods in China. Now if they would remove more slot material for travels (saving metal) they could have a G0704XL and get an extra twenty bucks plus the metal savings.

[hoss2006]

That's funny.
They at least are making some changes for the positive.
Probably waiting for one of us to make use of the heads oil sight glass that has no purpose right now.
Hoss

[hoss2006]

I told you I was a slacker.
I started wiring the servo but while I was in the console I decided this needs rewired and that needs hooked up,
a volt meter would be nice while I was at it, etc.
My blast cabinet showed so I had to play with that too.
Maybe it's just I'm easily distracted.
Baseball and hockey games don't help either.
Hoss

[691175002]

What do you think of using a 4" table for the 5th axis?

I picked up a 4" vertex table on a whim to see if it would work as a fifth axis. It has the exact same width as the head and attaches using the stock bolts.


The webpage lists the 4" table as having similar capacity as the 6" table and I have confirmed that they use the same worm gear.

I'm a little nervous about how rigid the table will be, but seems worth a shot.

[hoss2006]

Strip the head of unnecessary weight and don't bolt on a 56C frame motor and it should just do.
Hoss

[hoss2006]

Have this part in progress for the console.
While I was messing with it I figured I may as well get the Ammeter and Voltmeter installed for the spindle motor, finally.
Hoss

[Bob Adams]

Hey Hoss, is this the Setup you are using from CNC4PC? The Servo driver is it a Gecko you are using?
This project is worth spending some more $$$$$.
Thanks
Bob Adams
CNC Programming Software Tools

[hoss2006]

That looks like one way that should work.
Hoss

[RTTIM]

Hoss,

I'm looking for a pendant MPG for my G0704 - would prefer one with usb connection.

Any recommendations?

Tim

[hoss2006]

I can tell you which one not to get from China.
These should be much better, some usb some not.
vistaCNC
ShuttleRU_STM32
CNC4PC
Contour Design | ShuttlePRO v2 | retail.contourdesign.com
Hoss

[RTTIM]

I can tell you which one not to get from China.
These should be much better, some usb some not.
vistaCNC
ShuttleRU_STM32
CNC4PC
Contour Design | ShuttlePRO v2 | retail.contourdesign.com
Hoss

Thanks! Will Check them out....

Tim