making an arc

[keebler303]

i have read up on all the code for making an arc but everything I have seen uses R or I J K in the code. I see no way on my MDI to input an R. What am I missing?

Thanks for any help
Matt

[mrainey]

I think the Bridgeport control was limited to IJK to define arc centers.

[keebler303]

so then do i use the x y z buttons again as the i j k. there are no i j k buttons so i guess that would have to be it. i will go try and report back.

Matt

[keebler303]

doesn't work. here is what I was trying

G17 (XY axis) G02 (cw arc) x.xxx y.yyy (endpoint) x.xxx (for I) y.yyy (for J)

can anyone point me in the right direction?

Thanks
Matt

[mrainey]

Did you give it a feedrate?

[keebler303]

i didn't explicitly give that block a feedrate but i had a feedrate set prior to that block. g2 and 3 work similar to g1 where it uses the last specified feedrate if one is not specified for that block correct?
i can try giving it a feedrate in the same line tomorrow after work.

Thanks for helping
Matt

[DaveinUK]

Example line from a program for Arc

N20G3X****Y****I****J****F100

The X,Y,Z and N keypad doubles up as the I,J,K and T.

The above works on Boss 5

Good Luck

Dave

[keebler303]

so you are saying

N20G3X****Y****X****Y****F100

should get me an arc?
i'll try it tonight.

THanks for the help
Matt

[keebler303]

i'm cutting arcs! thanks for all the help. turns out what works is this:

G02 Xx.xxx Yy.yyy XX(I)i.iii YY(J)j.jjj Fff

Matt

[jtree83]

to use "I" on that control you would press the "x" button twice and the machine will change it to a "I" on its own like for instance if you ar using a "j" value type the "y" button twice and the machine will know that you are entering a "j" value (that is a bridgeprt textron control its old school but its accurate)