> On 07 Jun 2017, at 10:27, 'Andrey Z.' via Machinekit > <machinekit@googlegroups.com> wrote: > > Hi, > > > got my hands back on BeBoPr++ cape and my 3D Delta project, that was started > in early 2015. It was 2 years on ice because of time demand. Not I‘ve swiped > dust from it. I saw sad information about Bas :(. Still I was very addicted > early 2015 to his cape and don't want throw it away. > At the moment I have strange problems with optical limits. Maybe I’m too weak > in LinuxCNC or there some hidden knowledge to me – but I can’t setup proper > homing for linierdelta4. It simple didn’t react on those optical limit > switches. Maybe it’s wrong place for such question, but then I bet for advice > – where to look or to ask about such issues. >
What are you seeing exactly? What are your “strange” problems? I’ve run into the homing behaviour on the BeBoPr++ some myself in the past. Does this sound familiair? https://github.com/machinekit/machinekit/issues/601 > Maybe I need to invert means of switches, or just have to ignore homing at > all (unsure if it is good way but saw this approach in take5.ini and > BeBoPr++.ini? > > Thank you in advance. > > PS. I’m not new to CNC – i’ve made router on base of Planet CNC. Still i’m > new to LinuxCNC. > > This is a part of my lineardelta4.ini: > > > > > > [AXIS_0] > > # column C > > # > > # Step timing is 40 us steplen + 40 us stepspace > > # That gives 80 us step period = 12.5 KHz step freq > > # > > # Bah, even software stepping can handle that, hm2 doesnt buy you much with > > # such slow steppers. > > # > > # Scale is 200 steps/rev * 5 revs/inch = 1000 steps/inch > > # > > # This gives a maxvel of 12.5/1 = 12.5 ips > > # > > > TYPE = LINEAR > > MAX_VELOCITY = 250.0 > > MAX_ACCELERATION = 3000.0 > > # Set Stepgen max 20% higher than the axis > > # 1us steptime with 1us steplen gives 2us step perios (stepstick) > > # 2us is a stepfreq of 500kHz > > # BUT > > # PRU gives 10us steptime with 10 us steplen and > > > > > # scale = 160 steps/mm so max vel = 50kHz/160 = 312.5 mm/s > > STEPGEN_MAX_VEL = 300 > > STEPGEN_MAX_ACC = 3600 > BACKLASH = 0.000 > > # scale is 128 steps/mm > > SCALE = 160 > > MIN_LIMIT = -1.0 > > MAX_LIMIT = 785.0 > > FERROR = 5.0 > > MIN_FERROR = 1.0 > > HOME = 200 > > HOME_OFFSET = 500 > > HOME_SEARCH_VEL = 3.0 > > HOME_LATCH_VEL = -1.0 > > #HOME_USE_INDEX = Yes > > #HOME_IGNORE_LIMITS = YES > > > > > > # these are in nanoseconds for Allegro A4988 > > #DIRSETUP = 200 > > #DIRHOLD = 200 > > #STEPLEN = 1000 > > #STEPSPACE = 1000 > > > > > # these are in nanoseconds for DRV8825 > > DIRSETUP = 650 > > DIRHOLD = 650 > > STEPLEN = 1900 > > STEPSPACE = 1900 > > > HOME_SEQUENCE = 0 > > > -- > website: http://www.machinekit.io <http://www.machinekit.io/> blog: > http://blog.machinekit.io <http://blog.machinekit.io/> github: > https://github.com/machinekit <https://github.com/machinekit> > --- > You received this message because you are subscribed to the Google Groups > "Machinekit" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to machinekit+unsubscr...@googlegroups.com > <mailto:machinekit+unsubscr...@googlegroups.com>. > Visit this group at https://groups.google.com/group/machinekit > <https://groups.google.com/group/machinekit>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
