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Briefly -

Check out used machines, too many great deals on great machines out there now not too.

Lot's of people do fine on phase converters, agree, not a factor.

Lots of machines get taken...

Quick follow up.

The run out turned out to be .0002. Two ten thousandths.

The problem I observed had to do with the bit sticking out for the collet changer. Not sure at all what it's called....

Thanks very much. Glad to hear it's a good machine if OK and I will check into it more and give it a shake to see if it's loose or ....

Best,
John

Hi. Looking at some lathes to supplement my home brew CNC Bridgeport conversion, 7x12 mini lathe, and Mill / Drill.

Top candidate is a LeBlond Regal 15 x 30 lathe. Servo shift. This will be my...

Can you enter G-Code directly into the Centroid? I have Mach 3 and a custom DIY control set up, to calibrate it I wrote a short program to run each axis back and forth a bunch of times. If you can...

So, after pricing out having my Bridgeport moved to a shop I recently rented and getting back prices from $500.00 - $2,000.00, decided to give it a go with rented equipment. I also had some time...

Dude! Looks excellent. Very nice.

John

Ron:

Merry Christmas and Happy New Year. Peace. :rainfro:

Link to my completed conversion --

http://www.cnczone.com/forums/showthread.php?t=8749

I still feel really new to this whole...

How y'all doing on the mill conversion? Like what I see so far.

John

So my wife named the machine Rosie. Presumable after Rosie the Riviter. Not the other Rosie. Anyway....

Attached is a short clip of Rosie doing a finish pass on a foam trial for what I hope will...

Update on raising the power supply voltage. It's working pretty well with the actual program. I am not getting 50 ipm running the program however. But I was able to increse my "F" settings to 15 from...

Took me long enough. I wanted to bread board this and test it. It works and by design seems to be right for the specific application on a Sound Logic Break Out Board.

Thanks for all the input and...

Ken, Thanks for the reply.

I put the 1.5k in there to form a voltage divider as you probably figured. That gives me a voltage of 1.56 according to the math. The LED is rated at 2V max. So you...

Could I get a review on the write up from someone? I tested the circuit so I know it works. But I might have my terminology screwed up. See the attached post.

Best,
John

Strike this! I need to...

Hood, yes there is an fault terminal. It's called ERR/RES, it's pin 5. It goes from +5V to ground when the drive faults at +/- 128 steps out of whack. Then when you feed it +5V for 3 seconds, it...

Mike, thanks for the reply. I was beginning to feel like I was on an island on this one...

This seems to be the question of the ages. This does not seem to be so black and white which is why it seems to be often debated.

Assumed set up - Mach3 Control, Gecko G320 Drives, Servo Motors
...

Quick update. Few weeks back I installed the new transformers on my power supply. I'm still experimenting with the acceleration settings in Mach 3 but it looks like I'm going to be able to get a...

Great job. Congrats! Have some fun with that.

-jd

I have some IH limit switches. These are great designs, but they had a couple flaws & required a couple of small mods to make them totally reliable. Still worth the asking price.

I don't see them...

A nice Series II like that, that is a series II yes? MPG and all..... I also like your Mach screen.

Correction to above: The max continuos rated current of the four windings in parallel would bE 32 Amps. 8 A per winding. This is off the Avel Lindberg spec sheet.

But as I noted, running at 20A...

See attached.

Regarding the costs.

Don't forget shipping and tax..... Shipping on the transformers is a lot. They are heavy.

Also don't forget an allowance for hardware and some money for...

Sweet! I want one.....

Good deal. If you are going to actually use I'll let it go for very cheap. I'd rather it go to someone in the CNC Zone community who can and will use it than end up just out on e-Bay.

-jd

Here are some testing / power supply Pics.

First is the full load test with the seven 300W bulbs and the heat gun which is out of view on the floor.

As I think I mentioned this is pulling 20A...

You guys are all about the paint! ;-)

Yeah, that looks pretty good. Don't forget Rockford for rolled screws if that's your preference. Their kit goes together nicely.

John

It'll be interesting to see what happens when you fire it up and get a dial indicator on that table.

If it's a close BP knock off, lemee know. I've got my old BP power feed I'll let go for cheap....

Look for my CNC Conversion Blog post on this forum. I did my own Z axis. Might have some applications. But it sounds like you have 75% of the parts you need.

John

Well. Got the next power supply version built and load tested. The 5 ohm NTC Thermistors work great. They do get hot but not blazing hot.

This one is for a friend. Will retro fit mine soon.
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