hurco program ???

[mt92]

I am just starting to use an Hurco and why do the arcs in the program have a x,y,i,j, and r.
I have never seen this??

[glovebox20]

Hello

I'm assuming that your talking about the G-code side. I've ran Hurco's on g-codes before without the "R" for arc milling.

I will admit that I don't know much about the g-code side on the Hurco control but I do know if you think it's going to be the same as a Fanuc or HAAS type control, your wrong.

The style of g-code I familiar with on the Hurco control (Ulitmax III and 4) dose not need to use H or D codes of Tool offsets. Also, It dose not use R and Q codes for drilling. Here is an example:

M6 T3
G90 X# Y# M3 S#
Z2. M8
Z.02
G83 X# Y# Z.837 Z.187 F#
G80 Z2.
X# Y#
Z.02
G83 X# Y# Z.837 Z.187 F#
G80 Z2.M9
M25
M6 T4
etc,etc

In the G83 Line the first Z# is the total distance the hole is drilled for the start point (Z.02) in a negative direction and the 2nd Z# is the peck depth. The Z value is ALWAYS positive. The drill code gets canceled after every hole so it can retract to a safe distance before drilling the next hole.

As you see, there is no G43 or H code because the machine knows T3 is in the spindle and defaults to those offsets.

I don't not know why it works this way, I just know that how it we do it in our shop (we use Gibb to program the G-code and this is the post we got). I tried to manually edit the drill cycle like a Fanuc but could not get the drill to retract to 2" between hole even after adding a G98.

I just let the program buck and cant wait to get job with that job so I can go back to conversational type programming.

Just curious, can other people post samples of there g-code programs they use on their Hurco's (please list control type Uiltmax I, II, III, 4, Winmax ect and or the type of NC software)

Thanks

[SKICARB]

X and Y are the start point of the radius or circle being machined. R is the arc radius. I and J are a bit tricky to explain, but are incrimental center points of the arc that tells where in the quadrant the arc is going to stop go tangent to another piece of geometry etc. For a circle you would see the sign values change from plus,plus, to plus minus to minus, minus to minus plus, as you move clockwise thru the quad starting at the 12:00 position, all of the "I" and "J" would be equal to the arc radius. but the signs and locations will change "I" would have a value in one quad and "J" none then in the next quad they swap either locations or signs. Google in the Deaded G2 and G3 for more info.

[jetski]

The difference is the Hurco uses Hurco NC (HNC) not Fanuc code which is ISNC (Industry Standard NC). The major differences are G20 AND G21 are inch and metric in Hurco HNC and G70 and G71 in ISNC. Also one programs arcs in incremental and the other in absolute. ISNC is an option on Hurco machines and I am not sure but I believe it is a $1500.00 option.

[Buddy1]

Here is some reference

www.amtsinc.com/support/Gcodes.pdf