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Messages - John S

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81
Newfangled Solutions Mach3 Wizards / Re: Cut Gears alteration
« on: August 24, 2006, 06:33:42 PM »
Show me a commercial hob that's not helical.
Not one of Jose Rodriguez's mackle ups.

And I'm not pissing on anyone's parade, when the new fangled wizards were being written I went to a lot of trouble testing them and making suggestions based on real world problems with real world machines.

Where were you ?

Sure this thread is about new fangled Wizards and making life easy.
That easy one is called CUT GEAR, I can't see one called HOB GEAR

I have plenty of books about hobbing and gears, probably nearly a 100 at the last count.
I spent the last 4 days last weekend at the Bristol show in the company of Ivan Law who wrote Gears and gearcutting, he's an old friend.
Then take a look at this text file and the links to the pictures and then tell me if I don't know about hobs.

http://homepage.ntlworld.com/stevenson.engineers/lsteve/hidden/Gearhobbing.txt

Were you on our side in the last war ?

John S.

82
Newfangled Solutions Mach3 Wizards / Re: Cut Gears alteration
« on: August 24, 2006, 03:02:34 PM »
That method described by Larry isn't hobbing.
Mach3, with or without a wizard, can't hob at the moment as true hobbing requires a spindle encoder feedback, similar to rigid tapping.

The wizard will work for involute cutters but not for special applications like Larry wants.
Saying that not much thought went into the wizard isn't fair when no one came forward and suggested different ways of doing this.

What you require for doing your program can easily be done in excel or any similar spread sheet.
Another way is to read the book and learn to use subroutines to carry out much of the duplicated work required by this stacked cutter method of cutting, not hobbing.

John S.

83
Newfangled Solutions Mach3 Wizards / Re: Cut Gears alteration
« on: August 23, 2006, 03:54:29 PM »
Which cut gear wizard?
The one with mach3 or the one in the Newfangled suite ?

The one in the Newfangled suite is crap.
The cutter diameter is missing and so it can't post code.

Did I mention it was crap ?
:D

John S.

84
LazyCam (Beta) / Re: New Lcam with post processor
« on: August 15, 2006, 03:02:43 AM »
Brian,

Reading my code again there is no G21 or any way to select it and it hasn't selected a tool.


John S.

85
LazyCam (Beta) / Re: New Lcam with post processor
« on: August 14, 2006, 06:06:04 PM »
Brian,

Here's the sequence.
Load LC.
Open x3beam.dxf
Accept defaults on load options
Click outer shape
set :-  [ working in mm ]
Depth 10.0
feedrate 250.0
passdepth 5.0
plunge 100.0
Rapid hight 3.0
spindle 2000.0
start depth 0.0
tool 11

Post code and x3beam.tap is generated. Close LC and go to Mach3
this is the first part of the code. Mach3 barfs on line 45 no feed rate ?
Note rapid hight is 0.1 and depth is 0.0 ?

Just noticed only one feed has been applied where it specifies two 100 and 250.

N5 (File x3 beam )
N10 (File Posted in Mill Mode)
N15 (Monday, August 14, 2006)
N20 G90G80G40 G91.1
N25 G0 Z0.0000
N30    X13.6513 Y-23.4014
N35 M3 S0
N40    Z0.1000
N45 G1 Z0.0000  F0.00
G42
N50 G2 X16.8483 Y-21.7991 I1.1969 J1.6023
N55 G40
N60    X13.6513 Y-23.4014 I-2.0000 J0.0000
N65 G0 X26.0223 Y-15.7130
N70    Z0.1000
N75 G1 Z0.0000
N80 G2 X32.9738 Y-14.6854 I15.7479 J-82.5040
N85    X34.9006 Y-17.6993 I0.2095 J-1.9890
N90 G3 X33.7918 Y-22.3856 I6.8696 J-4.0998
N95 G2 X31.4550 Y-24.5028 I-1.9946 J-0.1466
N100 G3 X20.4959 Y-23.9733 I-7.6099 J-43.8283
N105 G2 X18.3464 Y-21.9136 I-0.1506 J1.9943
N110 G1 X17.9478 Y-20.1734
N115 G2 X19.1810 Y-17.3181 I1.7711 J0.9290
N120 G40
N125    X26.0223 Y-15.7130 I22.5892 J-80.8990
N130 G0 X39.3764 Y-25.0037
N135    Z0.1000
N140 G1 Z0.0000
N145 G2 X45.7702 Y-21.7991 I2.3938 J3.2046
N150 G40
N155    X39.3764 Y-25.0037 I-4.0000 J0.0000
N160 G0 X37.8802 Y-27.0066
N165    Z0.1000
N170 G1 Z0.0000
N175 G2 X48.2702 Y-21.7991 I3.8900 J5.2075
N180 G40
N185    X37.8802 Y-27.0066 I-6.5000 J0.0000
N190 G0 X57.5182 Y-15.7130
N195    Z0.1000
N200 G1 Z0.0000


86
LazyCam (Beta) / Re: New Lcam with post processor
« on: August 13, 2006, 05:57:41 PM »
Sorry Brian.
downloaded it and opened a file.
Selected a contour and it came up correct.

Went thru altering depth feeds etc but as soon as I alter the fisrt item LC freezes and locks up.

John S.

87
Show"N"Tell ( Your Machines) / Re: John S Seig X3 conversion
« on: August 13, 2006, 07:15:43 AM »
OK the machine is now finished and is going to the Bristol show next weekend.

Many thanks to all who have helped in this with advise etc.
the finished mill. [ oops missed the Z handwheel blanking plate ]



The clean side :D   4th axis plug in the side of the electrical box.



The driver box. Claer panel fitted just for the show.



And the dirty side.




John S.

88
Show"N"Tell ( Your Machines) / Re: Mini Mill retro
« on: August 13, 2006, 07:07:20 AM »
Very nice.
What model mill is this? It looks different from any that are imported here into the UK.

I have just finished doing a Seig X3 [ see post in this forum ] and fund out that I could do away with the gas strut and the motor was more than powerful enough to drive the head.

Upshot of this was that it increased travles from the strut limited 250mm up to 380mm.

John S.

89
General Mach Discussion / Re: 4th axis runs too slow !!!!
« on: August 05, 2006, 03:07:36 AM »
Larry.
This DRO labeled A-Axis rotational diameter has to be altered for each job where the diameter is different.
A large diameter has to move slower than a small one.

I have put that A Axis DRO on the first page as a reminder.

have a look at the latest version, 071 as it has a brilliant toolpath display for 4th axis, watch this video first for the settings.

http://www.machsupport.com/toolpath.wmv

John S.
 
 


John S

90
Tangent Corner / Re: Who I am...
« on: August 05, 2006, 02:38:38 AM »
At least she's better looking than you !

John S.

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