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Biesse CNC Through Bits vs Brad Point5/16/19
I am wondering if anyone has any experience with a Biesse Rover K 1532 and control over drilling bits. We use Microvellum for cabinet processing, and it does not at this time offer an option to differentiate between using a 5mm brad point or a through bit. I am curious if there is a parameter on the machine that would allow it to determine to use through bits at through drilling and brad point on shelf holes, locator holes, drawer guides and such.
Not certain about a machine parameter.
An option for this would be to set up your drill diameters differently:
If your part has a 5mm hole the brad point is selected. If the part has a 5.2mm hole the thru bit would be selected.
That is the work around offered by Microvellum and I am not willing to accept this. It would really take us hours of work to go through all specs and change each 5mm through to 5.2mm
I'm drilling closet partitions so lots of 5mm holes in 2 sided melamine. I drill thru holes with brad point bits. The depth has to be just right and I have to resurface at about 10 sheets but this gives perfect results.
Within the "native" Biesse control software, this is handled in the bit description. You specify the type of drill (through, brad, hinge, etc.), then when programming the type of hole is specified, selecting the proper bit as well as the correct fixed cycle associated with that bit. With 3rd party CAM software, they have to find an attribute to differentiate the type of hole, limiting the bit selection to the spindles that are only equipped with that particular style bit. To do this via diameter is probably the easiest method, yet I can see where it would cause issues. A cleaner solution for me would be to have a utility within the 3rd party software where the programmer selects holes and flags them by type.
I have been in touch with the software dev team for Microvellum. I have suggested an addition to their next update to have tooling options for drilling that goes through material and drilling that is partial. This should be easy, considering the program knows when it is through a material, to assign a tool labeled 5mmThru or just 5mm for brad.
Without knowing anything about your post, hard to say exactly but I think you're looking for:
There are all kinds ways to handle it that depend on the type of geometry the machine is given and the way the tool library is set up.
Tool type works well for selection but geometry diameter has to match the tool.
Diameter can be left blank in a tool code post. Just tell it where (centrepoint), what tool & how deep. If it is through, THR = yes and the depth is expressed as the distance past the bottom of the panel as needed for the taper.
I ran a pod and rail for 7 years then switched to a flat table. One nest and o threw the vgroove bits in the trash and never looked back.
Not a problem doors, closets, partitions etc. and we a ton of cabinets. Rover S flat table and Rover 30
What Cabmaker said.
8 years with 2 different flat tables thru drilling thousands of holes a day and never have a problem.
This should be able to be done by Microvellum currently, you just need to speak with a tool file tech. You need to know what you want the output file for your specific machine to look like and let them know, and they should be able to tweak your tool file to accommodate. I'm not familiar with Biesse programming options, but I've done this in the past for my Weeke P2P, to change the through bore options. (to Slow-Fast-Slow). They can tell if the bore is going through the material or not.
I'd suggest taking an existing program, and making a program do what you want, then go into the text file and find out what is different over the one you started with. Even if you wait for a program update, giving them this information may help them get it right for you the first time.