Messages

4431

LazyTurn / Re: LazyTurn

« on: July 25, 2010, 07:50:04 PM »

ART,
Just some not so obvious questions or comments which you may want to comment on.

1.LT will not convert units on import?
  It cares not if a unit of 1 is MM or inches from the DXF and thus selecting the MM in options dosn't affect the displayed profile dim's.
  The drawing should be done radius or  diameter and be in agreement with your Mach Turn configuration. ( lets not get into the scaling of things
  in Mach as that will just confuse) Draw in a system and keep that same system through the whole process.

2.In tools you need to check the box that the defined tool is metric.
   Don't just copy an Imperial  defined  tool , check that's it is metric, since LT will not do the conversions for the newly created tool.
   You can use metric or imperial defined tools.

3. The tool used defines the generated gcode units.
     If an Imperial  unit drawing is used and metric tool used then the gcode units will be MM. Note that the units are posted as a comment
        "       MM                            "                 Imperial      "                                  inches.  
SEE reply #1441 ( Modified this reply on 7/27/2010 )

User should  use consistant units for the drawing and tools?
  
Can you think of some other's or highlight any built in restraints / errors?

I didn't spend a lot of time trying to break LT when mixing units and don't remember much in the way of any user comments.

RICH

4432

LazyTurn / Re: LazyTurn

« on: July 25, 2010, 06:19:33 PM »

Dennis,
Glad you posted as it forced me to take a look at the manual and see what was in there for metric.
Additionaly i needed to refresh the memory some, and quess what........
I need to clarify / highlight some things. So rather than doing a lot of testing i will just post some generic questions for ART first.

RICH

4433

Tangent Corner / Re: HOT DOG DAYS

« on: July 25, 2010, 04:50:09 PM »

Yep, 2 years can go fast.
Wished for a grandson, got a four legged hairy one ...........waite till i meet up with that Wizard! 

RICH

4434

LazyTurn / Re: LazyTurn

« on: July 25, 2010, 04:46:09 PM »

Dennis,
If i remember correctly  i did a simple drawing and compared posted  MM and imperial code and all was ok in the code.
I'll do that again.
I think you use Skype as that would be an easy way to see what's happening. My address is in my profile, so send me a Skype message so i can accept and then we can go from there.

RICH

4435

LazyTurn / Re: DXF opening error: 0

« on: July 25, 2010, 04:34:35 PM »

Those files should work...

May be an installation problem, so let me check something out and i will get back

RICH

4436

LazyTurn / Re: LAZYTURN MANUAL COMMENTS

« on: July 25, 2010, 04:17:29 PM »

Ross,
I am happy if they are just read...

If the wording can be improved, something is missing or needs additional clarification, that's what i am seeking.
Sometimes you will find a high thought level of writing and that is deliberate since you can sometimes do a book
on just a single subject.  

Hey Bud, at least he didn't say he was crazy .........you need to keep a sense of humor on all this .........

After over 30 years of marriage my skin is rather thick! In fact i have "perfected" selective listening and reading! 
RICH

 

4437

General Mach Discussion / Re: Hobby CNC Spindle Motor Choices

« on: July 25, 2010, 12:15:40 PM »

Good link Gerry and Zero Cool should have a read of some of the info on that site, like spindle runout.

The sweetness of a poor spindle will leave a  bitter taste if you start breaking toolling. Small end mills are expensive
 and break in a heart beat if you have backlash and feed too fast.

RICH

4438

General Mach Discussion / Re: Hobby CNC Spindle Motor Choices

« on: July 25, 2010, 11:54:21 AM »

I use a few different high speed hand grinders, both electric motor and air diven, for engraving, fine milling work, and peck drilling small holes.
Here is link which shows a few different ones.
http://www.machsupport.com/forum/index.php/topic,12484.msg88231.html#msg88231

The top one shows a handpiece from Grizzly. I purchased the motor and two hand pieces, one with collet and one with a chuck, modified the
handpieces to remove play and was around $100 total when it was on sale. The modified handles are better than a lot of name brands which cost a lot.
Made a few genric holders so they can be used on the lathe, mill, engraving machine  and sensitive drill press.
 All depends on what you want to do, but something to think about.

RICH

4439

General Mach Discussion / Re: Dremel Aluminum cutting bits?

« on: July 25, 2010, 11:42:32 AM »

For light engraving i like dental burrs, they hold up very well. I run they at speeds from 14000 to 60000 RPM.
I just flood the the area to be engraved with WD40 and let the tool create a puddle of Al mud!
BTW, The engraving quality and and how small you can get is only as good as the machine you have and Z axis positioning is very important.

RICH

4440

General Mach Discussion / Re: PWM Spindle Control using Mach3 - How I did it

« on: July 25, 2010, 10:56:14 AM »

Thanks for the write-up Chris.
I have created a new thread in Members Docs titled Spindle Speed Control and have posted your document there.
It is nice to have some focused documents on subjects. Those documents can save users a lot of time since sometimes you need to have
a grasp ( or maybe total read of the manuals ) to get what you need to know.
 
RICH