Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: Buggalugs on June 04, 2012, 08:24:33 AM
-
After a tremendous quantum leap in knowledge and a huge learning curve I am almost ready to put my efforts to work in drilling lots of PCB's. I am using the Nesting Wizard which Mr Hood pointed me to. I have created several Nest routines which will hopefully drill six boards per pass then I need to change the bit to go over the same six drilling the larger holes. - I am really pleased with my efforts but once again I need a little help.
The feed-rate at which the bits drill needs to differ, so in my wisdom (or folly!) I created my nested routine for the 1.3mm holes as:
Y34.2000X11.7560F200
Z-2.5000F100
Z-6.4000F25
Z3.0000F200
M99
The logic being to drop the bit 2.5mm at 100% rate (I think this is called the plunge rate) then drill at 25% then withdraw at full rate. Well to me it sounds good, but it doesn't bleedin well work. What the Hell am I doing wrong?
Secondly, is there any way to have Mach3 inform me that a tool change is needed? I have put M6 T(n) onto the top of each Nested Routine. The T(n) in this instance is Tool 3 being a 1.3mm bit.
Once again all help and comments are appreciated (apart from abuse and violence !)
-
Well, thanks for the help guys - I eventually managed to fathom it out myself.
-
Strange, I replied to this the last day, must have got lost when the forum went down. Good you got there anyway :)
Hood
-
Thanks for that, I found that G1Z and G0Z worked out fine.
G1Z-2.5000F100 (Drop to drill hight at100%)
G1Z-6.4000F25 (Drill at 25%)
G0Z3.0000F200 (Withdraw at full pelt!)
-
In my reply that never appeared I asked what spindle speed, size/type of drills and material you were drilling as your feedrates seem very low.
Hood
-
I hope to be using Drills and Mills between 0.5mm and 6mm. My machine is quite small with a table size of 300 x 500 with the maximum gantry height of 80mm.
-
Ever thought about using a canned drill cycle ???
(;-) TP
-
Mmmmm...
That's a new one. Never been 'Canned' before!
Stoned, Hammered, Wellied, and absolutely off my face, but never 'Canned' :o
Seriously now, that sounds interesting. I think I have seen that in the Wizard thing, I'll give it a try and find out what it does.
Thanks for that.
-
Look in the Mach manual, it will give you the info for using with the canned cycles for drilling.
Hood
-
There are some canned cycles that can be found in Members Docs.
RICH