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601  General CNC Chat / Show"N"Tell ( Your Machines) / Re: AL54b (lathe) project from New Zealand on: December 23, 2010, 02:39:47 PM
Why didn't you use the original X screw mount extension concept? Not the most rigid setup to have the bearings exposed like this and in an aluminium block. It does look creative though Smiley

Dan

602  General CNC Chat / Show"N"Tell ( Your Machines) / Re: AL54b (lathe) project from New Zealand on: December 23, 2010, 01:06:02 AM
Had this happen several times over the last few days. I am sure it is being worked on though.

Dan
603  General CNC Chat / Show"N"Tell ( Your Machines) / Re: AL54b (lathe) project from New Zealand on: December 22, 2010, 04:29:01 AM
Looking good! What a pleasant surprise that the new bearings block and the original one align on same plane.

What accuracy grade are the ball screws?

Dan
604  Mach Discussion / Works in progress / Re: 3 PAGE LATHE SCREEN - WIZARD ADDITIONS on: December 22, 2010, 01:15:14 AM
The issue with zstart being swapped was never an issue. I think he was just looking at it wrong or something?

Correct. Was my mistake.

Haven't had a chance to mess with the OD Arc3 some more, but, as reported from the few tests I did, there was an issue in diameter mode.

Dan
605  General CNC Chat / Show"N"Tell ( Your Machines) / Re: AL54b (lathe) project from New Zealand on: December 16, 2010, 02:04:23 PM
The sheet metal shop we work with would cut it and CNC fold it to the drawing and the prices are so low (most of the price is the laser cutting) it makes it not worth messing with folding it manually, even if it's a simple bend. Ask your laser shop if they can bend it. Only adds up something like 2 bucks for a bend.

Dan
606  General CNC Chat / Show"N"Tell ( Your Machines) / Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion on: December 16, 2010, 05:26:08 AM
Will revisit this idea some time...

Dan
607  General CNC Chat / Show"N"Tell ( Your Machines) / Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion on: December 16, 2010, 04:28:48 AM
Hood,

Thought the above probe was self contained and not just a piece of metal that would close the circle through the part and mill table...? I would like to be able to probe plastic parts as well. I have an idea how to make one, but a cheap commercial one sounds easier Wink

Dan
608  General CNC Chat / Show"N"Tell ( Your Machines) / Re: AL54b (lathe) project from New Zealand on: December 16, 2010, 03:16:59 AM
Coming along nicely! Time to get it painted...

Dan
609  General CNC Chat / Show"N"Tell ( Your Machines) / Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion on: December 16, 2010, 03:11:26 AM
Love it! What a time saver! Well... now only got to find a probe to make me one Cheesy

Dan
610  Mach Discussion / General Mach Discussion / Re: Mach 3 turn constant sfm? on: December 13, 2010, 05:50:54 AM
Yes that seems to be a good likeness Grin

Ok quick test, first thing was add a blended feed DRO to the screenset

MDI
G96S200
M48S1000
M3

Start at X10
G1X200F0.5

FPR starts at 0.5 and as spindle slows gets as high as 1.3
Blended starts at 490 and remains constant
Next

Start X200
G1X10F.5

FPR Starts at 0.5 and as spindle speeds up it goes as low as 0.16
Blended starts and maintains 155

In other words its well screwed up and would be good to know if others get the same results with the same inputs with SS and PP.

Hood

Hood,

Just did a quick test. Seeing similar behaviour here as well. Mach3 always maintains same mm/min feed and adjusts the mm/rev accordingly. The mm/min feedrate at which it moves corresponds to the mm/rev feedrate at the beginning of the move. This is with a Smooth Stepper.

Dan
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