Old B'port Canned Cycles

[MultiAxGod]

Have to post for the answer because of work load and hope one of you can help easily. I searched, but can't find an answer that fits.

 

Using MpmasterX4 for all of our machines. Works great with all the new features and I have adapted it for each of our machines. Problem is an old Bridgeport we have. It's on it's last legs but we still use it daily until it dies.

 

So now I need to make the canned cycles correct for the B'port. Those unfamiliar with it, the drill cycles start from where the drill tip is and need a positive value in Z. i.e; if I need to drill a hole .5" deep into a part and start at .1" over the part. Z value needs to be Z.6

For peck drilling it needs this method, plus the next Z (I am thinking of replacing the R value and forcing the add of .1"?) is the first peck distance in positive value. i.e; if I want the first peck to be .1" into the material, this would be Z.2

Next Z is the peck values (I know, just replace the Q here with Z)

 

Line example G83 Z.6 Z.2 Z.1 F10.

 

So my question is, what is the easiest way to accomplish this? I hate to add .1" to the values in the post, in case someone programs from a different clearance level. I can switch the Z to positive easy enough by multiplying it by -1, but want to see if there is an easy way to accomplish this that I am overlooking. I don't want to use an old Boss post and upgrade because everything is formatted in this for our shop.

And of course won't be putting a positive depth in drilling because it won't simulate correctly! Can't believe somebody actually put that as an answer on one of the similar posts!

 

Suggestions?

[Bryan Johnson]

You may already have this taken care of, but I can send you a good post with this type cycles if you need an example.

There is also the problem of no G98/G99 feature. That is what all the "Jump" lines are about.

 

Below are some snippits.

 

 

incdrdp = abs(refht$ - depth$) # For Incremental drill depths

 

pdrill$ # Canned Drill Cycle

pdwell,e$

n$, pwcs, x$, y$,e$

if refht$ <> initht$, n$, *refht$,e$

n$, *sgdrill, *x$, *y$, *incdrdp, *frplunge$,e$

 

pdrill_2$ # Canned Drill Cycle

if refht$ <> initht$, p_jump

if refht$ <> initht$, pdrill$

if refht$ = initht$, n$, x$, y$,e$

 

p_jump # Cancel cycle a move to initht befor going to next hole

n$, "G80", e$

n$, psg00, *initht$, e$

n$, *x$, *y$, e$

[Mcam Nut]

I dont know if it is free on not but mp-eztrack works great for the bridgeports

[delete]

I might have a post backed up that output a G1G9 every peck so the Mighty Bridgeports could look

Feel and act like the rest of the world. (Negative Z numbers).

You can't Tap with this post though so I would have to toggle between Machine Def's leading to DX32 Drill and DX32 TAP post's Fun stuff!

 

If your interested I will Dig around for them.

[Brian B 74]

I use the DX32 control daily. I do the drilling using standard g-code. The version of control I use doesn't have a peck clearance built in (meaning after the drill retracts it rapids down back to the EXACT position it was when it retracted - in the steel). I turned off the canned cycles in the control definition and change posts if I need to tap.

 

Kind of a bogus control but after awhile it starts to grow on you.

[veedubnut115]

Hurco's run very similar to that. Needing all positive values for drill cycles. We used the MPmaster Post and then just modified the pdrill$ area of the post. I'll have to get to work, so I can copy and pass it up here. But its not really too hard to modify.