### Help with gerber file format please

Posted:

**Wed Nov 07, 2018 11:27 am**Question for anyone familiar with PCB design and Gerber file format.

I have been reading this document but unfortunately it contains too much engineering gibberish and not enough simple explanation

X-2794000Y-254000D2*

D14*

Y-508000D1*

X-2286000Y-762000D2*

X-2540000D1*

X-2794000D1*

It seems obvious the the X and Y denote the x and/or y coordinates of a point in a polyline.

And the D1 and D2 denote move to and llne to commands

But hat are the units here? Are those integers referring to steps (as in a stepper motor) or millimeters or something else?

But I can't figure out what all of this means.

%TF.GenerationSoftware,Novarm,DipTrace,3.2.0.1*% // This is just the software that generated the gerber file

%TF.CreationDate,2018-11-07T12:25:27+09:00*% // And the file date....all good

%FSLAX35Y35*% // What is this?

%MOMM*% // What is this?

%TF.FileFunction,Copper,L2,Bot*% // Copper clad board but what do L2 and Bot mean?

%TF.Part,Single*% // Single sided PCB....all good

%TA.AperFunction,Conductor*% //

%ADD14C,2.0*% // What do these two lines mean?

%TA.AperFunction,ComponentPad*% // Get this....all good

%ADD15C,2.3*% // My pads in diptrace were circles of 2.3mm diameter.....all good

I have been reading this document but unfortunately it contains too much engineering gibberish and not enough simple explanation

X-2794000Y-254000D2*

D14*

Y-508000D1*

X-2286000Y-762000D2*

X-2540000D1*

X-2794000D1*

It seems obvious the the X and Y denote the x and/or y coordinates of a point in a polyline.

And the D1 and D2 denote move to and llne to commands

But hat are the units here? Are those integers referring to steps (as in a stepper motor) or millimeters or something else?

But I can't figure out what all of this means.

%TF.GenerationSoftware,Novarm,DipTrace,3.2.0.1*% // This is just the software that generated the gerber file

%TF.CreationDate,2018-11-07T12:25:27+09:00*% // And the file date....all good

%FSLAX35Y35*% // What is this?

%MOMM*% // What is this?

%TF.FileFunction,Copper,L2,Bot*% // Copper clad board but what do L2 and Bot mean?

%TF.Part,Single*% // Single sided PCB....all good

%TA.AperFunction,Conductor*% //

%ADD14C,2.0*% // What do these two lines mean?

%TA.AperFunction,ComponentPad*% // Get this....all good

%ADD15C,2.3*% // My pads in diptrace were circles of 2.3mm diameter.....all good