Got it. All the ones I have used have always worked on setting up a lower tool height and V width, an upper tool height, material thickness and desired bend angle... but, I suspect 90% of the work is done in getting to where you have got to, as in the end, that just ends up as a final ram position, which is exactly what you have in a table. In essence, it's just some equations to derive that table cell value, so you are pretty much already there.
The normal sequence in Europe is there is a "mute height" (normally about 6mm above the top of the metal) which is considered the "safe opening" ... not quite enough to get your fingers in. Assuming the press is fully open, in order to come down to "mute height" which is normally done at high speed the light guards must be clear and the pedal is pressed. Once the press is at mute height, you can interrupt the light guards with the workpiece/hands/plastic chickens/whatever and perform the bend with the pedal. Depending on an optional setting for the bend, the press then opens either to mute height, and the guards remain inactive (ie muted) or to the fully open position ... I normally only set a full opening at the last bend sequence on large multi-bend parts to allow the part to be removed. Optionally, there is often a "retract" that can be set to pull the backstop away after the ram passes the "pinch point" I'd love to try this on my machine, the closed loop with two servo valves and two rams would be entertaining! I think I can get at all the controls between the press and the existing controller on a 25W plug or two ... On Mon, 25 Apr 2022 at 10:15, andy pugh <bodge...@gmail.com> wrote: > On Mon, 25 Apr 2022 at 02:04, Robin Szemeti <ro...@redpoint.org.uk> wrote: > > > > Ah yes, a different screenshot. What are "start depth" and "end depth"? > > Start Depth is the point where the tool touches the work and the speed > changes to bending speed. And End depth is the point that bending > ends. > > Having never used a CNC press brake it was all a bit of a guess, and > mainly an exercise in making a LinuxCNC system that was table-driven > rather than G-code driven. > > I learned a fair bit, enough to probably not do it quite that way again... > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
