what size is best? 3x3, 7x7, 9x9, etc
oh alright, thank you, ill see how it works
As a reminder; make sure your bit is out and the router z position is all the way down.
Also set spoilboard thickness.
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do you only have to set thickness if you add one on top or just in general?
I’m still a newbie so not positive… I guess you don’t need to use a spoiloard if your floor is the spoilboard. 
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Still need a spoil board as your bit will contact the floor while doing full thickness cuts
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Caleb Yager wrote:
do you only have to set thickness if you add one on top or just in general?
the default Z settings for the anchor locations assume that the anchors are at
the same height as the bottom of the sled (if you look at the plywood+2x4 frame
in the instructions, that would be the case)
if that is not the case, the calculations made during calibration are not going
to be be accurate. many people have been able to get things to work anyway, but
if you have problems, this is a good place to start.
with v1.15 of the firmware, you need to change the Z values in the maslow.yaml
file for calibration.
as of v1.16 you will be able to make adjustments like this with one entry using
spoilboard instead of having to change all 4 Z settings.
David Lang
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so its okay if it is on plane with the router? and if i select over a 3x3 grid would it go out 5 feet or more because my frame only has a 4ft 8 inch middle so i was wondering if it would fall off at any other sizes of grid?
When I did my calibration the 3x3 and 7x7 didn’t go outside of the 4x8 space… well within it actually.
What thickness of material are you planning to cut? They said I needed to re-calibrate because I’m cutting 2 inch thick foam. Then I busted a belt because I jogged 22 cm to far. 
Yes it is ok; assuming you have lifted your anchors up the height of your spoilboard. If your anchors are lower than your spoilboard that is ok too; just need to enter your spoilboard heights into the config.
If you don’t want to use spoilboard then you should be ok with having the router chew up your floor ( in most cases not desirable ) .
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I will likely be cutting thin aluminum sheets up to 1/4 inch and wood sheets up to 1.5-2in thick, and my anchors are attached to the spoilboard which the router is also sitting on, im using some of the 3d printed anchor points
Caleb Yager wrote:
so its okay if it is on plane with the router? and if i select over a 3x3 grid
would it go out 5 feet or more because my frame only has a 4ft 8 inch middle
so i was wondering if it would fall off at any other sizes of grid?
the autoselected grid size is a precentage of the frame size, but with a 8x12
table you should not have problems.
However, 8x12 actually ends up running into grief at the top and bottom center,
8x11 is actually better
play around with https://lang.hm/maslow/maslow4_frame.html to see this.
David Lang
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Wes wrote:
What thickness of material are you planning to cut? They said I needed to
re-calibrate because I¢m cutting 2 inch thick foam. Then I busted a belt
because I jogged 22 cm to far.
you should not have to recalibrate due to a broken bit. once you have the anchor
locations correct, you will need to adjust the Z height to account for your
material thickness and anchor variations,
David Lang
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Caleb Yager wrote:
I will likely be cutting thin aluminum sheets up to 1/4 inch and wood sheets
up to 1.5-2in thick, and my anchors are attached to the spoilboard which the
router is also sitting on, im using some of the 3d printed anchor points
you will want to change the workpiecethickness value for your different
thicknesses of material.
David Lang
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where does one find that value to change it?
Caleb Yager wrote:
where does one find that value to change it?
go to the fluidNC tab, then click the right bubble for config settings, and
scroll down around 15 or so settings.
this will be easier to find in the next version or two.
David Lang
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thank you, really appreciate it