Drawing not there when I open file

Hi Guys,

I am new to lasers and laser engraving, but not new to drawing in Cad.

I have a problem and I am probably just doing something silly. Yesterday I started drawing my next project. Its coming along just fine, I saved it and then today I re-opened it, expecting to carry on from where I left off, however when I open it I just get the grid line page that is empty. When I look at the file size it saying that its 4092k. So there is something in there. Its not an empty file.

I know that there will be a simple thing that I have done wrong, but I cant quite see it atm.

I’m running HP Prodesk 400 on Win 10. I am saving to an external USB drive where I store all my CNC and Laser files.

Can someone point me in the right direction?

Cheers
Lid.lbrn2 (4.0 MB)

I do not know where the 4 MB is, but drawing (lbrn2) is empty, ie. there are no visible or hidden layers.

Hi Bernd,

I know right!

So if there is nothing that I am doing wrong, that means that I will have to re-construct the entire drawing. Ouch.

So what did I do wrong to make it like this?

Cheers

I can’t say what’s wrong, I don’t know. But an “empty” file in LB is “usually”, here with me, approx. 23 kb, so something is in your file…
There will probably be someone from @lightburm who brings light in the dark.

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If you open the file in a text editor, it only contains NUL characters. It most likely was a file saving issue, where the file became corrupt when saved to a USB drive.

Did you at some stage after opening file delete all layers ? and then save the file ?, I get a file 23kb when I save an empty file with no layers showing. If I save a file after adding something then deleting it I get a file 16kb, the ONLY way I can get a file of 402kb is to create a circle <0.000 diameter (too small to see until you zoom in max and select all to find it again) BUT I can see there is something in the file by the fact there is a layer created, which your doesn’t,which makes me think you have a corrupted file. Try reloading the backup of the file (in the folder you saved it look or _backup.lbrn2 and hope that it was saved beor the file was corrupted.

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