Messages

2931

General Mach Discussion / Re: Loosing X,Y position location

« on: January 23, 2012, 06:32:11 PM »

Glenn,
Are you using servo's or steppers on the mill?
RICH

2932

Show"N"Tell ( What you have made with your CNC machine.) / Re: Bike part

« on: January 23, 2012, 05:24:36 PM »

Thanks for the alert Tweakie since i really didn't know that the  how to description was not in the other post.

Hey Sam, just aword of caution on the part, and that is, you should have done the air hole for the guy.
Maybe put the hole right in the eagles eye or in one of the circular parts of the lettering as the guy could screw up the nice piece by
drilling a big hole where it sticks out like a sore thumb.

BTW, if you want to buy a bridge i can post a link to the thread......  

RICH

2933

Show"N"Tell ( What you have made with your CNC machine.) / Re: METAL INLAYING

« on: January 23, 2012, 05:13:50 PM »

He's probably laughing maniacally at the both of us

I am laughing,  since i couldn't have accomplished setting you up like that if i wanted to...just not that clever!

Don't know where the how to reply went but here is how it's done.

Mill the outline you will inlay to about 1/2 the depth of the wire. Cut width should be very close to wire diameter.
In this case it's Al plate, so the wire must be soft and thus some copper wire was used. Undercut the bottom corners edges by scribing or actualy chasing around the bottom corners. Idealy the side walls of the milled flat bottom slot would be beveled some. In engraving you actualy make a cut all along the perimeter af the corner. When the wire is hammered into the cut it forms to the bevel and can't come out. You carefully work / peen the wire starting at one end and into the other end of the cut. You can use a nice flat punch to peen the wire down and make sure that the plate is sitting flat on something solid. Hopefully / you should not mark the plate surface. You will be left with excess wire above the surface, and for a flat surface, all one needs to do is make some few fine surfacing cuts at high speed to remove the excess. You can also just cut the excess off using a chasing hammer and the right engraving tool. You want to get it down as close as possible to the surface. Now you just carefully polish it flat over a flat surface topped fine emery / sandpaper.

Then use something like mag wheel polish or silver polish and it will discolor the wire and make it dark but leave the Al bright.

I am thinking it took me about 3 hours, start to finish, to inlay the part shown.


RICH

2934

Show"N"Tell ( What you have made with your CNC machine.) / Re: Bike part

« on: January 23, 2012, 06:55:43 AM »

Looks good Sam. Maybe try doing some inlay work for the next one.
http://www.machsupport.com/forum/index.php/topic,6188.msg40705.html#msg40705

RICH

2935

Mach3 and G-Rex / Re: New Guy wondering why table display shows project off in space.

« on: January 23, 2012, 06:28:24 AM »

IDP,
Left cllick in the graphics area. Also try unchecking "As Drawn...." in SETUP>Loading Options.
Post the DXF file.

RICH

2936

General Mach Discussion / Re: Mach3 Web Site

« on: January 22, 2012, 02:36:11 PM »

Twice today but don't know for how long. Would say around 6 times this week. Not too often around  5:30 am EST .
RICH

2937

General Mach Discussion / MACH3 MANUAL UPDATES

« on: January 21, 2012, 10:15:02 PM »

I just updated "Threading On the Lathe - Mach3 Turn" write-up which is located in Members Docs.

The link in Support>Documentation / Mach3 takes you to Rev 0 of the document and it is now at Rev 2.
Can someone fix that link?

Thanks,
RICH

2938

General Mach Discussion / Re: Z Axis Help Appreciated!!!!!

« on: January 21, 2012, 09:15:14 PM »

If you have the time, we can have some fun learning and the replies will be meaningfull.

You didn't answer the first question, namely, how fast do you want to go or what IPM is desired? Reliably!

RICH

2939

General Mach Discussion / Re: Z Axis Help Appreciated!!!!!

« on: January 21, 2012, 03:57:36 PM »

I will get to the point!!!!

 
Me too 

You started off with  425 oz. in stepper which provided a Z IPM of 90.
Now you bought a 1600 in oz stepper to replace it.
You have a four axis kit from Keling and all steppers are using the same power supply.

every possible potential failure that could cause the z to slip and cant find anything it could be except the motor

For 3D stuff I needed  to change my Z motor on the mill. The CAM programs produce very small moves and the motor
must be able to handle the accell & velocity called upon it for those moves. The initial motor never faulted once in a number of years for 2D stuff.
The hard part was that it skipped randomly and I could not reproduce it ...sometimes line 50 other times line 10,000....drove me bonkers.

That said....

Please answer the following:

What rapid feedrate do you want the Z to have?

What is the amp rating of your power supply and also the voltage output?

What is the amp and voltage rating for your drives?

What is the z axis weight? ie total weight of what goes up and down....

How manny amps are used for the other two motors? X&Y

Can you supply info / specs on each of the stepper motors you have?
Motor curve would be nice.

Can you use a in oz torque wrench and measure the torque required to just start lifting the Z axis?

The power supply needs to have available current  for all the motors you will use. Increase the voltage and you will increase the speed.
You can increase efficiency of the screw by going to a ball screw. You can increase axis speed via reduction or using multi start screws.
Not sure what you kernel speed is but increasing it will increase avaliable velocity for a given steps per but the other compopnenets will need to
be adequate to achieve increased velocity. Connsider conterbalancing your Z so it doesn't take as much torque to lift it up.  Just a few thoughts.

Now if you want to skip all of the above maybe have a look at equivilant machine and see what is being used for the Z axis.

RICH

2940

Newfangled Solutions Mach3 Wizards / Re: NFS Turn Wizard

« on: January 21, 2012, 12:49:22 PM »

where has everybody been here?

We are around.  
I myself went to test / try out the wizard but have a problem with my lathe so surely comments will come as folks use it.
 
BTW, Ron, it's a nice practical wizard......

RICH