I’m having problems running My first job on my workbee 1510. Every time I start the file it drives up and triggers the Z limit switch. I’m trying to cut 1/2” birch on a 1” MDF spoilboard, 1.5” total. With the bit all the way in the router. Pics included.
I'm using the Openbuilds controller. I am able to get the program to start only if the bit is plunged into the material, zeroed then ran from there which is of course not ideal. How would that be set in CAM?
Homing sets the machine origin. You have to Setzero on stock, to tell Grbl where the STOCK is Machine coordinates and Work coordinates are seperate. When you setzero you tell the machine where the STOCK is - it saves it as an offset from Machine position so you can go there again after rehoming. but for each new job/stock you have to set zero again where zero may be Checkout
I get that. And when I set zero on material top it drives up on job start and triggers the z limit switch. (I am able to get the program to start only if the bit is plunged into the material, zeroed then ran from there which is of course not ideal.)
I even replaced the top with a new MDF .75" spoilboard to give me an extra .25" of Z and it still drives up to far.
So where is the gcode from? Any G53Z0's in the header? (make it G53Z-5 if its from our fusion post, and change the z safe height in the post process window to -5) (and attach it here)
Ok, no G53s So, is your axes all jogging the right directions? X- move endmill toward left, X+ moves endmill toward the right of the stock Y- moves the endmill toward the front of the stock (toward you if you stand in front of machine), Y+ moves endmill toward the back of the stock (away from you) Z- toward the spoilboard, Z+ away from the spoilboard (if not, grbl settings > $3 Direction Invert > Flip relevant switches) And doublecheck, you did jog to the surface of the stop and clicked Setzero - all moves (except G53 moves) are relelative to where Z0 is set
Yes all axes are jogging the correct direction. And if I'm understanding this correctly.... I do zero after homing the machine, then move up to stock and zero again on top of stock before commencing job. Should I only be zeroing the X and Y on the stock at that point?
. Home sets machine zero (refer to gnea/grbl) Setzero tells the machine where the stock is. In your CAM setup you have an Origin. You want to setzero on the stock, where that Origin is supposed to be. You have to set X, Y and Z, as you'll never have the stock right up against X and Y zero (needs some negative space for endmill offsets etc) Its either machine setup, or CAM setup. Lets make it easy: Run the Hello World And video it - we know what moves to expect, so if it misbehaves, we can know why. Rather than the unknown if its supposed to work Cut2d output
Usually thats down? Home lifts endmill all the way up, so you jog downward toward to top of the stock (which is on the spoilboard, below the endmill)
I meant I set zero on the machine spoilboard not Home it, sorry. Then move to stock and zero the X Y & Z again. Bin making successful cuts by plunging the bit as stated and zeroing there but it'd be nice to run it correctly. Video included. You can see the .25" plunge hole left of the fish tail.
Yeah but thats not normal Do post the file though (screenshot not so useful, i cant load and run it lol) And do try the hello world, should at very least give you some satisfaction that the setup works, and then you just got to figure out Cut2D's specifics
finally got the 27Mb video downloaded. I only have a 4mb line at home and its flaky as can be!) Fishy looks good, so yeah, do post the Gcode file, let me see if it does the same z moves at the beginning when I run it here?
Haha apologies. Thanks, but still can’t seem to fix it. Still starting in material. And now I’m experiencing some imperfect O’s.
Until you do that, I can't tell you what in your gcode is wrong (; The picture looks like either too an aggresive cut recipe, or something is loose (backlash) - hold the endmill by hand and give it a firm wiggle. If it gives, follow the wiggle until you find what loose. Likely candidates - loose wheel or incorrectly adjusted eccentrics - loose coupler between motor and leadscrew or motor and pulley (if its a belt machine) - loose stop collars on leadscrew
I figured out my start issues. I also followed the video steps on calibrating the eccentrics. Seemed to help a little bit but still having imperfections in the O’s.