Profile Circle on 3040

[Doddy]

Others will have more experience here, but have you tried a simple square?

Things I'm thinking - superficially, at least, it looks like you might be losing steps in the x-axis, but I don't know/can't rule out if aspire has a mach3 post-processor and/or if arcs could be causing an issue?, If you repeat the test with a simple 40x40mm square then at least you can start to understand if you're losing steps due to acceleration or max feed rate. When calibrating my machine I usually run a 40mm square with diagonals routed as well (a X in a box) just to get a visual on linearity, etc.

[dfox1787]

Others will have more experience here, but have you tried a simple square?

Things I'm thinking - superficially, at least, it looks like you might be losing steps in the x-axis, but I don't know/can't rule out if aspire has a mach3 post-processor and/or if arcs could be causing an issue?, If you repeat the test with a simple 40x40mm square then at least you can start to understand if you're losing steps due to acceleration or max feed rate. When calibrating my machine I usually run a 40mm square with diagonals routed as well (a X in a box) just to get a visual on linearity, etc.

Hi

The project itself does have a rectangle section that it did cut out fine it's just not in the shot.

I also recently ran staight grid cuts that appeared to work ok.

If you have some gcode I could try in mach3 that's not dine in aspire that would be helpful. The circle is suppose to be 8mm in diameter.



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[Doddy]

Something like this (below)

40mm square containing a circle.

Spindle speed 12000rpm, tool dia 2.5mm (not critical). DOC 0.4mm, feed rate 800mm/m, plunge rate 300mm/m

( T0 : 2.5 )
G21 G90 G91.1 G64 G40
G0 Z3.0
( T0 : 2.5 )
T0 M6
( Engrave1 )
G17
M3 S12000
G0 X0.0 Y0.0
G0 Z1.0
G1 F300.0 Z-0.4
G1 F800.0 X40.0
G1 Y40.0
G1 X0.0
G1 Y0.0
G0 Z3.0
G0 X5.8579 Y5.8579
G0 Z1.0
G1 F300.0 Z-0.4
G3 F800.0 X10.0 Y2.6795 I14.1421 J14.1421
G3 X40.0 Y20.0 I10.0 J17.3205
G3 X10.0 Y37.3205 I-20.0 J0.0
G3 X5.8579 Y5.8579 I10.0 J-17.3205
G1 F300.0 Z-0.8
G3 F800.0 X10.0 Y2.6795 I14.1421 J14.1421
G3 X40.0 Y20.0 I10.0 J17.3205
G3 X10.0 Y37.3205 I-20.0 J0.0
G3 X5.8579 Y5.8579 I10.0 J-17.3205
G0 Z3.0
G0 X0.0
G0 Z0.6
G1 F300.0 Z-0.8
G1 F800.0 Y0.0
G1 X40.0
G1 Y40.0
G1 X0.0
G1 Y5.8579
G0 Z3.0
M5
M30

[dfox1787]

cheers ill try this later see what happens.

[Kev2960]

I had a similar problem with my 6040 router.The CNC Blog

[dfox1787]

I had a similar problem with my 6040 router.The CNC Blog

Improvement with your mach3 settings. Not perfect but that may be the cutter i am using.

[Clive S]

Improvement with your mach3 settings. Not perfect but that may be the cutter i am using.

You are not helping yourself. why don't you copy and paste Doddy code and give some feedback as to what is happening and take it one step at a time. You have to establish if you are losing steps or have backlash etc.