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Author Topic: Constant Surface Speed On The Lathe  (Read 12775 times)

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Offline Hood

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Re: Constant Surface Speed On The Lathe
« Reply #10 on: December 07, 2009, 02:16:50 PM »
Phill, sorry to say the Mill and Router guys have a louder voice than the Lathe guys and then of course there are the OEM guys. Brian will eventually get round to Turn and the work he is doing on Rev 4 will make things better for us and also easier for him to do the work on Turn. We will hopefully get a Christmas present of a new Turn but dont look for it this Christmas, maybe next LOL

Hood
Re: Constant Surface Speed On The Lathe
« Reply #11 on: December 08, 2009, 12:54:48 PM »
Hood

Thanks for the bad news

Is it definitely working in PP as i may change over

I went SS so as to use a laptop

Are there any solutions

Phil
The Good Thing About Mach3, Is It's very Configurable

The Bad Thing About Mach3, Is It's Too Configurable

Offline Hood

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Re: Constant Surface Speed On The Lathe
« Reply #12 on: December 08, 2009, 02:00:38 PM »
Phil
 Dont know regards the PP, I never had a servo on the spindle when I used the lathe with the PP , the speeds were controlled by a gearbox with electromagnetic clutches so only set speeds. When I put the servo on I was already using the SS and had problems with CSS so I asked here and a couple of people said it worked fine with the PP so I presumed it was an SS issue only.

Hood

Offline RICH

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Re: Constant Surface Speed On The Lathe
« Reply #13 on: December 08, 2009, 09:30:23 PM »
Phil,
 Never even tried CCS. Have both PP and SS available but have been using just the PP since i got the new computer. The VFD and motor is "holding down the floor" as i just set the speed with belts and all turns out just nicely. One day i will get sophisticated, but until then, think i'll just make some stuff for a change.

Now on the bright side of things, i must say that I have been using your lathe screen and like it. Need to have you put a few indicators  on the screen showing what is active.

Sometimes it's just fun to have some fun making something. Heck, a few more days and the nodel will be done.

I remember Brian saying that he would have the lathe stuff up to snuff by March. I think he just got the year wrong!  ;)

RICH
BTW, The SS was to have backlash done a year ago. Since then built a new lathe and bought a computer to fix the problem. Sometimes things just ain't worth waiting for , life is short, if you know what i mean! ;D
« Last Edit: December 08, 2009, 09:35:09 PM by RICH »
Re: Constant Surface Speed On The Lathe
« Reply #14 on: December 09, 2009, 05:40:49 AM »
Phil,
 Never even tried CCS. Have both PP and SS available but have been using just the PP since i got the new computer. The VFD and motor is "holding down the floor" as i just set the speed with belts and all turns out just nicely. One day i will get sophisticated, but until then, think i'll just make some stuff for a change.

Rich i cant believe you or anyone else doesn't see the benefit of CCS. Think of it as screwcutting across the face of a job, or a mill guy saying i do all my jobs at one cutter speed

Phil,
 Now on the bright side of things, i must say that I have been using your lathe screen and like it. Need to have you put a few indicators  on the screen showing what is active.

I am humbled, what indicators are these then ?

I remember Brian saying that he would have the lathe stuff up to snuff by March. I think he just got the year wrong!  ;)

Lets hope its this decade  ;D

BTW, The SS was to have backlash done a year ago. Since then built a new lathe and bought a computer to fix the problem. Sometimes things just ain't worth waiting for , life is short, if you know what i mean! ;D

I can understand Greg's reluctance to do feedback comp when there is a new revision of Mach Imminent  :o that supposedly has comp built in

Phil
The Good Thing About Mach3, Is It's very Configurable

The Bad Thing About Mach3, Is It's Too Configurable

Offline RICH

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Re: Constant Surface Speed On The Lathe
« Reply #15 on: December 09, 2009, 08:38:35 AM »
Phil,
I can appreciate the value of CCS since i mimic it on the larger lathe by varing the speed when doing facing or turning down larger stock. The cnc'd lathe is a 6" converted Atlas and most all the things done on it have been rather small. In fact I have yet to finish it completely so all the assessories can be used.

I'll post the lathe screen additions and if you get a chance maybe you can add them. The original lathe screens can drive someone bonkers. I liked yours since it is more usable and retains the original such that if a user were to have a question you can relate. I will post what I think should be added and you can be the judge.
RICH


Offline Dan13

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Re: Constant Surface Speed On The Lathe
« Reply #16 on: December 09, 2009, 11:39:23 AM »
Guys, where can I find this screen set?

Daniel

Offline RICH

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Re: Constant Surface Speed On The Lathe
« Reply #17 on: December 09, 2009, 11:48:47 AM »
Phil,
It would be nice to know the current state in turn at a quick glance. So if the indicators can be added to
the screen it would be benificial. See attached.
RICH
Re: Constant Surface Speed On The Lathe
« Reply #18 on: December 09, 2009, 12:19:34 PM »
Dan...This it ?
Re: Constant Surface Speed On The Lathe
« Reply #19 on: December 13, 2009, 03:44:01 PM »
I am finishing up a lathe retrofit using parallel ports (2) for control. It uses servo motors on the axis drives. It has an 8 station turret which is actuated by a stepper motor. Pneumatic lock.

I have gotten it setup to use constant surface speed and it works quite well. It definitely gives the VFD a workout!

I may be able to post some movies of it in action if there is any interest.

The idea of a touch screen is next on the to do list. Looks good to me.

Jim