Ok, I’ve been scouring the forums for a comprehensive list of the most current HDZ settings in GRBL. Essentially I have a bunch of custom settings and I really don’t want to use CM to set up the HDZ only to have to go back and a tweak a bunch of stuff. Ive seen some of winston’s settings here Testing More Aggressive GRBL Settings. Theres also some discussion on this post as well HDZ Settings for $112 and $122. But as far as I can see there’s no real complete list. So what changed, and what is everyone using?
I don’t think there’s much to it other than the $102, $112, and $122 settings. I’m running classic precision omron switches, and I don’t like the switch-smashing feel of increased homing speeds.
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I’m seeing on the high end $112 =1400, $122 =200. What I haven’t found is $102. @neilferreri I know you use CNCjs quite a bit. Do you use soft limits, and if so what do you have it set too for the HDZ? I feel like I should NEVER hit the bottom of the lead screw but the safety would seem nice.
Also where did you get the switches Digikey, I heard a rumor that Luke was working on a set for the XXL but I’m comfortable sourcing my own if the price is reasonable.
As far as the steps per mm ($102):
360°/1.8°=200 steps per rev.
200 * 8 (microstep) = 1600 steps per revolution.
1600/5mm per revolution = 320 steps/mm
I don’t. I don’t know why. Maybe its the adrenaline that comes from the chance my machine might tear itself apart.
Pretty sure my extent is 150, but I can check when I get home (doing some post bedtime work).
I still have my originals, back in the day when it was cool to add them with the “Limit Switch upgrade”. I have purchased extras from DigiKey. These ones.
I’ve looked for “precision” switches, but you’re talking 10x the cost, and I’ve seen machines use cheap limit switches that are pennies a piece. I’m waiting for someone to compare repeatability on the physical switch vs the cheap prox switches. Mine are sub mm accurate.
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Guess I could have just asked what the uSteping was, thanks !
Please do, but 150 seems reasonable.
I misread that, I thought you were using inductive prox switches. I too hate that soul puckering sound of a switch slamming into a metal plate.
right at the bottom
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… This is probably posted in at least 4 different threads on here. I wish I’d known what I was looking for. I found the video you did for assembly which was pretty helpful by the way, but this would have been really good to have as well. I know carbide has the dock, but there’s still a couple nits worth picking.
To all the future people that read this, just click on Luke’s link.
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