This is for a lathe, 2 axis
Bob-Cad will only let you select canned cycle or separate lines once per drill operation. I did not like the spot drill to post a canned cycle. I edited my Siemens post to replace the canned cycle with just straight G-code. Seems to work fine. I cannot think of why I would not want to do this. If I'm not peck drilling it's most likely a shallow depth hole so it's just G1 Z-x.xxx Fx.xxx then next line is G0 Z0.1
1124. Standard Drill Canned Cycle. Straight G-Code Version
n,"X0.0 ", "F",program_block_20
n,"Z",program_block_1
n,"G1 Z",program_block_5
n,"G0", "Z",program_block_1
1125. Standard Drill Canned Cycle with Dwell. Straight G-Code Version
n,"X0.0 ", "F",program_block_20
n,"Z",program_block_1
n,"G1 Z",program_block_5
n,"G04 S",force_no_add_spaces,drill_dwell
n,"G0", "Z",program_block_1
The peck drill versions keep the canned cycles.
I am not sure if this would apply to any posts other than a Siemens 840C
Good idea or bad?
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Mactec54
hy for most metal work, in order to protect the cutting edge, is good to dweel ( theoretically, for a drill, for half a revolution ) or feed back for 0.05 - 0.5mm ( less for small tools, more for bigger tools, thus this motion increases with initial feed ), and only after that move out of the holeIf I'm not peck drilling it's most likely a shallow depth hole so it's just G1 Z-x.xxx Fx.xxx then next line is G0 Z0.1
idea behind is to avoid aggressive disengagement between tool and material / kindly
we are merely at the start of " Internet of Things / Industrial Revolution 4.0 " era : a mix of AI, plastics, human estrangement, powerful non-state actors ...
The only canned cycles I use on my lathe is a rigid tapping cycle, G84, and the threading cycle, G32. I force the CAM software, Fusion 360 in my case, to generate G1, G2, and G3 moves for all other operations. This can sometimes create large files, but if your machine can digest that, you have much better control over what is happening, including easy editing of the G code if needed.
Jim Dawson
Sandy, Oregon, USA
I like to use canned cycles, right now all my turning code is separate lines. I do not have BobCad working with canned cycles yet, I will. I can edit a canned cycle right at the machine very easy. If I need to change DOC in a canned turning cycle it's only a one number edit, not dozens or hundreds of lines.
In BobCad Ver 21 I have to draw in all my toolpath lines. Exactly where I want them, now that's total control of the toolpath, but it takes a long time to do. Ver 32 it does it all for me. (however it wants to, with a little input from me). Sometimes it puts in goofy moves which just bug the hell out me.
For drilling a shallow hole, no pecking, it's only four lines of code.
Jim Dawson
Sandy, Oregon, USA
hy that was a mere sugestion, not a must-do thing, thus only be aware, and chose whatever you wish as for through holes, recomandation is to reduce feed when tool gets out on the oposite side, because heat disipation no longer occurs as normal, because material section is no longer constant, but variableTrue for blind holes, when drilling thru it does not matter.
again, only recomandations
this method of doing things should change, even if it is there for decadesI have Fusion 360 on both my lathe and mill computers, as well as my desktop and laptop. Allows me to make changes right at the machine and re-post the G code to the working folder. Then just open the new file in my CNC software.
whatever is there to fix, should be done before posting, minimizing the need for near machine editing, unless for cuting specs parameteres but even that can be aproached somehow
of course is ok to have fusion on pc laptop, etc, but what about a unique center, posting for everything else ? thus a single install, that spits code for whatever machine, yet being able to be accesed by 2 3 or more seats ? this is what i am after
we are merely at the start of " Internet of Things / Industrial Revolution 4.0 " era : a mix of AI, plastics, human estrangement, powerful non-state actors ...
I think you are confused We have 3 seats of Fusion 360, and each seat can be accessed from any of several computers in our facility, or any computer with internet access. The Fusion 360 license goes with the user and is not computer specific. We can design parts and post G code to any machine, from any machine, desktop, or laptop.
Also, we own the parts and the designs, we don't do job shop work. The parts may have design changes done at the machine during first run setup, but normally are not changed after that. However I did make a change in a part yesterday, mid run. I changed the order of operation and added an operation to get better tool life, and saved 45 seconds/part on a mill/turn part in the process, all done at the machine. Saved me walking 150 feet to my office computer
Jim Dawson
Sandy, Oregon, USA
hy jim actually i deleted my long reply, and only write that short messy thing, i am sorry ... your initial reply in this tread got me re-thinking about the actual stage of things, how they are, and really, seing someone still balancing between canned and g-code, etc
i didn't continue writing about it, because i should 1st get things done, then speak; what you saw was a rushed thing, sorry
i totaly agree with you, i understand the importance of saving 150feet, the difference between 1/2 keystrokes, acces on account or whatever needed to make an application initialize more than once ?! i was not reffering to an install to a pc, that's why i called it center, that you acces from different locations, or send/edit programs from home, but whatever, in the end it has to work
i wish to make things as simple as possible .. and yes, i am confused, what i have thougth a few months ago, now is recycled, and latest idea poped up a few weeks ago it changes as i go with it
we are merely at the start of " Internet of Things / Industrial Revolution 4.0 " era : a mix of AI, plastics, human estrangement, powerful non-state actors ...
I am still working on getting more of Bobcad to work with canned cycles. I find them very easy to modify, If I want to change depth of cut I need to edit one single number field, not hundreds of lines of code, or go back to my computer and edit then repost it. I can edit a canned cycle right at the machine super quick. I do have older machines with limited memory for large files.