Help can't scales pcb size in pdf to real size on print by laser printer?

[paulvdh]

@witawat

It seems that the printer is trying to adjust
the size to fit the paper itself.

Adding a specific scaling factor to the output to your printer driver does not work as intended if your printer driver applies it’s own scaling factor (such as “scale to fit”).

[BlackCoffee]

@BlackCoffee

at 1:1 (100%). Also true for direct-Printing. Those Prints are always correct.
Also, if, for example, the Plot Settings are for A4 and I set my printer for US-Letter (8.5x11) at 100% scale

Gosh, I hope OP reads and understands what I posted… and that it should be obvious to him/her that Scale to Fit is Not 100%… never know what folks think and do…

[witawat]

Hello

this video

i config like you

but output

this size 44.5mm not 45mm

this 44.5 + 44.5 + 2 = 91 mm

can scale in kicad one size ?

50mm x 44.5mm

[Paul.Blitz]

A couple of thoughts:

1. upgrade / downgrade your printer driver, MIGHT have an affect.
2. Plot to SVG format, then use an SVG graphics package to do the scaling (if actually needed) and the printing.

[RobK]

Your output is 1.1% smaller than actual, so if you enter 1.011 in the ‘Custom’ field and you should be good.

[witawat]

i use wifi print drive not sure up or down grade driver

[BlackCoffee]

This may Help… In your video, I see you’re Printing according to Objects Tab of appearance manager…

I print the Drawing Sheet….

ADDED: Follow-up I printed using Both and you can see the slight-dimensional difference on the Width’s…

[witawat]

can’t print on A5

i try move pcb can print on A5

[witawat]

i set scale 1.011 this size not fix one size

A4 Print Drawing Sheet OK

Size 50 x 45mm

A4 Print according to Objects not ok

Size 50x44.5mm

[hermit]

Have you at least tried plot instead of print? I know this worked for me at some point in the past.

[witawat]

Have tutorial for plot ?

[hermit]

I just remember ‘plotting’ what was needed. Copper layer for test fit.

[hermit]

@witawat Did you resolve your issue?

[witawat]

no now i contact hp print for check my printer

i wait service on site

agent support test on my model hp 107w

him say can print normal

[3Dogs]

Laser printers are not accurate devices.
Once you realize that, your life will be much less frustrating. Just figure out the required scale factors to correct the error, and re-size the print with an external editor.

[witawat]

Update

HP said replace with new LaserJet M211dw

I’m not sure if it works well

Have to wait another week for the new one to arrive

[witawat]

Update 19/01/2568

Now I am waiting for confirmation of the size comparison test from HP’s technical department on Monday.

[LM21]

Sometimes it helps if you delete all the extra like drawing borders and what ever. Leave only the PCB or whatever you are doing.

There are also many kinds of zooms in many places. Are you sure they are all as they should be

[witawat]

Update 2025/01/29

Now I have received the HP M211DW printer.

Print quality is accurate, good.

There may be a slight problem with the long paper core, there may be a deviation of the edge or something at 0.4 mm.

In testing with A5 and A4 paper

If the size is not correct, you can adjust the size with the inkscarp program by reducing the size to 0.1 mm and the work will be exactly the same.