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this code is in inches mesh cam is writing code in inches in this chase. not mm
use inch measurements when you define stock in mesh cam not 36mm but 1.41732283 inches 1 inch =25.4 mm The stock is...

The z dro needs to read 0 when you hit go to zero. make sure that you are not in machine coords the lite should be off. Go to config homing limits and make sure z is set to auto zero {checked}.
in...

it looks like your cnc is set to work in g21 MM set the stock dimensions in mesh cam to MM then it should work. the machine is trying to move in inchis in the mesh cam code but the cnc is using MM....

g 54 can be found on the offset tab in mach3 it will start at what ever location is in this setup hit save tool offset and see whats there if the z is set to a certain height the tool will go there...

It sounds like your g code and mach3 set ups are not both in mm or in inches.The cnc must be set up to one or the other at the start of loading mach3 for the motor travel set up. you cant change g...

This is the new gantry design. I have moved the x axes to a vertical plate. I also changed the gantry beam to a 3" x 8" 3/16 wall steel tube as per comments by awerby on strength. I have also...

do you mean like this . will this be a strong gantry? I can get different materials i what it to be firm.

The 'System Kit' Includes:
(4) TB6600 Single Axis Stepper Motor Drives
(4) 425 oz.in. Bipolar Stepper Motors with 1/4 Inch shafts on both ends, nema23 mounting holes
(1) 40V 400W Power Supply
(1)...

I thought the force would be in the x axis. front to back not sagging glade you caught that

I think i have the x and y axis mixed up

------------- this is y i guess along gantry

my old cnc has it backwards x is along the gantry ill have to fix it on this one.

greggv
I thought about that too. how much would you suggest?
the more i move them apart the less traveled i get im also limited to 8" plate alum. do you mean wider gantry or wider z carriage to...

the rails are 500mm. 19" the suppoat bearings are 8" apart I should get 11" travel - 2" bit total 9" I don't know if thats good or not. the new design would put the spindle collet at the bottom of...

new thoughts Make a square beam two pieces 2 x 5 ,24 tubes steel and plate top and bottom with 1/8 " plates

I was concerned about the weight. Do you think the nema 23 450 oz steppers will work well? i can only find steel square tube in 2 x 5 .25 thick wall if it needs more i will have to re engineer the...

Carriage design steel or alum.

I have designed a new cnc for my shelf and would like feed back before I start the build. all support is welcome.. what do you think. any design changes i should make?