I have used the subject probe for some time now and I find that the probing process often fails, probably because the conductivity between the cutter and the probe body is poor. Consequently I seem to spend more time re-homing the machine and probing rather than cutting. I have it in my head that there has got to be a better way. Since I almost always cut from the same XY position, is there some way to programmatically set the XY zero location each time and only have to probe the Z-axis? Are there better probing systems available for the blackbox? When you do a probe, there is an entry for the bit measurement - is that measurement the shank or cutting diameter? Is there a faster and more accurate method of probing? Could I use a macro and if so where can I find info on macro programming? All questions are related to openbuild machines and the black box.
Clip the magnet to the collet nut for better contact. Diameter = diameter of the part of the bit touching the plate XYZ Zero is consistently stored, you can just reprobe Z zero if your XY stays unchanged - remember to Home to re-establish saved offsets into the physical world The Wizards are the fastest and best method - if you are failing at probing, you have something wrong, best to just find and fix the cause (endmill coatings is largely not an issue if you rather clip to the collet nut as the collet already gets through the coatings) - as the process is quite painless by nature (normally)
Everything,, @Peter Van Der Walt said, plus its more accurate to use a turned rod of precise diameter to probe X and Y (I use a brass rod that I turned and measured with a micrometer, probe XYZ, change to the bit and re-probe Z only) Alex.
I do have a brass rod 6.35mm in diameter that I use for probing. If I understand the process, I enter the 6.35 into the probing wizard and when I probe the XY axis the center of the brass rod should be over the corner of the XY axis when completed. That means if I change to a v-bit the centre of the V will be directly over the corner. If I change collet size and bit size, no matter what size bit I use the centre of the bit will always be over the corner - is that correct?
Correct, all Zeroing operations are related to Centerlines, as the CAM's already offset by endmill radius
I built a Z probe that does not rely on bit to plate conductivity, this way the bit never comes up against a hard stop. Optoisolated Z probe
Looks like someones effort to make a tiny trebuchet wasn't wasted. Also check that the wire from the magnet thingy isn't breaking or coming out of the block it screws into. That'll cost you a bit and a divot.
I have the OB XYZ probe plate. Using the Probe in automated mode touches Z and X and Y just fine. Later in the automated detection part of bit size (1/8" bit ) inside the Circular part it touches immediately therefore stopping the macro. Is there an update for the automated probing macro? Or is there a way to modify the macros?
1) Post a Serial Log of the attempt please? 2) Does it touch on the way down into the hole, or once it starts moving around inside the hole? Which side does it touch? (front, back, left, right)
If it goes down to close to the edge of the hole, it indicates your machine is not calibrated correctly (moving distance shorter than commanded) Wizards and tools > Calibration menu should help you fix your calibration
yes that was it .... I had 2 busted v wheels on the Y axis and best were loose. Does OB have an upgrade kit to go to lead screw from belt drive?
Off the shelf Kit no. Modular parts catalog from which you can "lego" together your own solution absolutely yes What machine did you have?
I was actually dumb enough to purchase a workbee from SPAM ... ITS THE 1515. I have the lead screws from OB though for the planned upgrade. Just wanna make sure I have everything before I get started.
Well the WorkBee 1010 was leadscrew driven So you can follow along with the 1010 build, then just add the Tensioning kit to keep the longer 1540mm leadscrews tensioned properly: Workbee: OpenBuilds Workbee 1010 (40" x 40") Tensioning system: C-Beam® Tension XL Linear Actuator (look at the endplate assemblies - thrust bearing and tension nut installation etc)
LOL... I love the "SPAM" txt replacement. and again thank you as all upgrade parts are and will be purchased through OBs
