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hello, please, would you share your template ( or an example ) for a cnc setup sheet ?
i would like to know how others organise their stuff
thank you
DMF_TomB;3160521 said:best thing is not to assume another will understand everything and do some extra explaining
hello, i am talking about long series ( at least 1 month duration )
you are correct : more precise, i am talking about a "neutral" point of view, where the documentation is elaborated technical, impersonal
thank you all for your time
considering that a part may require several fixtures ( or several clamps ) - i don't know how to say exactly, but for each step i have 2 sheets : one for preparation and another for operation
preparation sheet ( for lathe ):
- tool, toolholder, brief about particular sticking out, how to measure the tool, and how to declare it on the cnc, turret post, alignment requirements
- material, chuck+jaws, live center, spindle liners, special fixture, etc
operation sheet :
- operation title, turret post, restart phrase
- dimension + tolerance + how to measure it + a number that helps locating the dimensions on a technical drawing
- for each dimensions is specified how to input the correction : classical offset , or through a parameter that changes the program coordinate ( so to avoid editing the program )
- sometimes i also specify the program value : trained operators can see if a corection is too big, or if it fluctuates unusual, so this helps as a prevention
when the program is loaded, it zeros automatically all required axis
at this moment, a snapshot of all offsets + axis zeros is created
during operation, offsets are monitorized, and program stops if values are not ok : this prevents errors caused by a wrong input, or by a tool that has been replaced with a longer one, etc
data logging is active in the background : this helps seeing how stable is each operation, and helps decide if it is better to increase the specs or not,based on a simple cost evaluation from the frequency chart of that operation; changes in specs are signifiant
a real problem with higher specs is that materials are not always uniform, and sometimes i have to use medium cutting specs, without knowing how many parts really require it
another problem is that same tools, from same vendor, are not always the same : for example a lot of inserts can take it, and another lot is a bit softer, even if it is the same product
cutting specs are changed via an interface, without stopping the program, so downtime is pretty minimal; the application logs each event
thank you
I helped Marek develop this format and then he expanded on it with other customers. Detailed text and graphical representations of part, setup, and tool holder assemblies
NCreports - NCmatic
seems you have everything already setup. as for pushing max limits ...
thank you for your replies
nice job dstryr / thx
what i really need is a very customizable adaptive control : self adjusting feed + rpm, based on load value; definetly good when machining many parts
i know that those parameteres are deep under the hood, but if only i could reach them i may be able to deliver something nice :
... a drill increasing feed when there is a through hole : near the end it will go faster, without getting signifiant cutting edge wear
... remove the need for the operators to suddenly jump at the machine and adjust the potentiometer, because one part is made of harder material
... constantly comparing the actual load with a trial load, and adjusting specs spot on
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