Wrap on fadal(hackable)

[lnmc66]

Hi all, I m a Fadal op, as I watch threads dont see anyone mention about wrap( use a few code to wrap the part so u dont have to write a comlex and very long program), so I like to contribute so u can get most of fadal neat. let me start , if u want to write some engrave(easy right L9201) on the cylinder what u have to do is:

*Use G51.1 Y-0 mirror image
G17 Qxxxxxxx describe your plane, most is XY Q=Rotary ratio/ 5 x 3.1416 x Dia.
Hx your tool height
your toolpath here

Y0
G17
G50.1 close your mirror image

and thats all guy. here is an example so u can compare and use
this is an engrave letter ENGRAVING on an cylinder which is dia. 4.33 , I use the mmk tecnara rotary which have 360:1 ratio. so the math is: i take 360 devide by 5 then devide by pi(3.1416....) then devide by 4.33 equal 5.2929
=Q

N1 T1M6G90(******ENGRAVE
N2 S7000M3
N3 X-2.3Y0A-180.
N4 G51.1Y-0
N5 G17Q5.2929
N6 H13Z0.1M8
N7 L9201R+0.1R1+0R2+0.125R3+270.Z-0.005F3.(ENGRAVING
N8 X-1.31Y0M9
N9 G17
N10 G50.1
N11 G0Z0H0M5A0
N12 M1



I think this is clear enough to explore your machine. on toolpath area you can use any kind of shape like rectangle, round other than engraving L9201,example to deburr holes on cylinder.

if u have any question, please......

[Edster]

How about explaining the feed forward and advanced feed forward commands. Also which is better to use g8 or feed forward for 3d milling, or do you use them together. I just learned of these codes from a fadal tech that did some service on my machine. My code consits of many very small lines to make the 3d shape, not using g8 makes the cycle horribly slow. Thanks.

[lnmc66]

Edster, my point is to focus on wrap that wrap geometry on the cylinder, and yes u r right on that g8 issue, there are some trhread already talk about that , use g92 instead of g91 which was the default when u start the machine. and the bang of machine is the disadvantage of the control. well if ya do 3d , just take that g8 or g9 out of your prg and let go. and exeriment yourself is quicker, here i m just discuss about write code that normally u work on xy plane, a flat surface. now people wanting to write the code that u can cut it on thecylinder like surfaces, like engraving on a beer can, there are 2 way to do it:
1st you use a high dollar cam sofware to write it, this asking your skill to use it and it end up very long prog , one disadvantage is everytime they change something onthe part, example this case is the word ENGRAVINGchanging to EASYWRAPCODE on the different dia. part like d=4.00", u have to rewrite the code on the cam ....
2nd u use whatever sofware u already have, and use the wrap I explan before, this case u just cope and paste and u done, get the machine payback u money already spend on this machine.

thanks and regard

[fizzissist]

Great. Now I have to mount my 4th axis up and spend a day screwing with this.



That's ok, I'll get even with ya.....I'll write a macro you won't be able to resist playing with!!

[Jedi]

My boss was wondering if we could engrave numbers on a 2" cylinder. So this is helpfull. Do i just put the toolpath on line N7 with the L9201. What does the R+0.1R1+0R2+0.125R3+270.Z-0.005F3. do? and how do i control where the engravining starts?

[fizzissist]

right outta da book......3) The R0 word is used to define the clearance plane for the tool to move
above the part. The tool retracts to this plane when moving between
characters, changing position to continue the same character, or after the
last character is engraved.

4) R1 defines mode selection of four options:
a. A value of 0 for standard Gothic font (R1+0.).
b. A value of 1 for stencil type Gothic font (R1+1.).
c. A value of 2 for serialization standard font (R1+2.).
d. A value of 3 for serialization stencil font (R1+3.).

5) R2 represents the height of characters to be engraved minus the tool
diameter. The maximum character height is 2.5 inches.
6) R3 represents the angle at which the characters are to be engraved.(see
figure

7) R4 is the serialization increment selector (1-9). Enter the R4 value for the
increment amount. R4+1. increments the number by one for each part. R1
must be R1+2 or R1+3 to allow R4 to function.

F is for feed

Computing Start Position
----------------------
X: The L9201 Fixed Subroutine will move to the X position specified in the
program, and then move in X the amount calculated for the start spacing of the
first character, before beginning the engraving cut.

Y: The program must specify a starting Y position that takes into account the
tool diameter, so that the tool is initially positioned one-half the tool diameter
above the desired baseline of the engraving.

[HamSammich]

Found that formula quite helpful, however, I have three seperate numbers to engrave around the cylinder, putting a G17 in between kicked the Y off centerline. took that out and tried it just at the end but I am still having problems, A wont return to 0 with a G28, or HO, and even tried G53A0. I just can't get the XA conversion to cancel. Got any suggestions?

Ham

[Bronizzle6]

have you tried returning to A0 before g17

[HamSammich]

Tried that thanks. However, that is the right idea, the move had to be a Y move to get the A to return. After 10 hours of trying everything that we could think of, and today we found the answer right in front of us in the book "unwrapping" We also combined all three of our numbers with a few spaces between on the same engraving line and that worked great.
Well its like my dad always told me, when all else fails read the directons.
So for anyone else having troubles, you must send Y to its original position before the G50.1 & G17.
Take care all and thanks for all the help.
Ham