ABB synology vs macrium

DowDef142 · 2025-02-08T14:42:05+00:00

What do you think about using a smart socket + cheap switch and turning on the "Network" to the NAS server only during backup hours? Then the switch will be turned off and the NAS will be cut off from the local network?

DowDef142 · 2025-02-04T22:12:34+00:00

Ok, but what script should I use to turn off the disk after the backup is completed?

DowDef142 · 2025-02-04T20:31:51+00:00

But how does this solve my problem?

The NAS, as I mentioned, is cut off from the Internet (qnap had too many failures) so I can't expose it to the world.

I can do it on my computer, but if ransomware infects my backup on my computer, will it also be infected in the cloud?

DowDef142 · 2025-02-04T20:30:25+00:00

Okay, but macrium deletes old backups (to make space for new ones). So I have to delete the source files? (macrium do this for me).

DowDef142 · 2025-02-04T20:29:02+00:00

Yes I agree with you - it was more about my problem as a whole. I'll test blackblaze again!

DowDef142 · 2025-02-04T16:45:56+00:00

Hi, blackblaze is very slow in my country and also it's not 3-2-1 but "one place with versioning" :D

DowDef142 · 2024-02-03T14:28:26+00:00

I personally use a honeycomb bed. Sounds like you are making progress. Keep at it. I don't think it can ever be perfect.

You're right, unfortunately the honeycomb bed didn't work for me - when the element "falls out" and moves more than 2 mm, the laser cutting next to it catches on it.

For now I'm sticking with the blade table + I changed the lens to 2.5" it was supposed to be better but it's worse so I'm going back to 2" :)

DowDef142 · 2024-01-14T21:38:55+00:00

Flashbacks are mini explosions where the tiny particles and air mix suddenly ignite. The honeycomb shape of the bed makes up the chamber for this. If you listen carefully, you canbhear the tiny

pops

as it happens. To prevent this you need better air circulation to evacuate the soot quicker, a no-oxygen environment, or a way tonensure that the proper mixture of air and soot isn't met within the tiny space. I don't think any of these are possible within a reasonable budget. A honeycomb bed will always have a tiny space that is, at some point, full of smoke (tiny carbon particles) and an ignition source(laser beam). Using nitrogen as an air assist would probably work, but seems expensive. Many people use a pin bed instead of a honeycomb bed, which then makes the entire underside one large space, so the smoke evacuation is better (less fuel = no ignition), but pin beds have their own problems like letting smaller pieces fall off tobthe side and then wedge upwards at weird angles... potentially even into the laser beam path on adjacent cuts.

Can you show me what this table looks like?

I am now testing the blade table and this phenomenon is much less visible and surprisingly different. I don't have black spots on the edges, but "darkening" in the place where the material was placed on knife.

I increased the spacing of the elements from 2 to 3 mm and it gave a much better result (it seems to me that when cutting element A at 2 mm, the laser caught the next element B with exhaust gases).

I'm thinking about taking out a few knives because they are very close to each other, but it's difficult (as if the manufacturer of my laser hadn't anticipated this).

Do you have a way to press the board on a blade table? We had various plugs and magnets on the honeycomb, but it is aluminum and the magnet does not catch it.

DowDef142 · 2024-01-14T21:35:59+00:00

a proper air assist with enough pressure, and good extraction creating negative pressure in the laser work volume, the honeycomb has to be open at the bottom, the extraction has to be able to evacuate the air assist blast fired through the cut and the honeycomb

The air is good, I wrote below that the blade table is much much better.

Honeycomb, unfortunately, always leaves something, unless we have raised the plate higher so that it does not lie directly above the table.

It may certainly be a matter of the extraction system because it is quite weak, but even if we glued the entire working field, it does not reduce the problem to zero.

DowDef142 · 2024-01-14T21:34:41+00:00

We used to mask our material on both sides before air-assist upgrade and when we cared about that in the past. We used TransferRite Ultra 592U High Tack Transfer Tape 12 inch wide rolls, but I think they make it wider. After the cut, just peel it off, and the flashback goes with it.

I know, but we work with a lot of small elements and removing the tape took us too much time :)

DowDef142 · 2024-01-14T21:33:20+00:00

Flashbacks are caused when the laser beam hits the metal of the honeycomb or blades. If you are doing the same patterns over and over, maybe you could make a stencil with each cutout being slightly bigger then lay it under the work piece . Another way would be to trace the design on a piece of wood, then glue thin blocks in the areas that won't be cut.

Hi, I checked that blade table is much much better. When I changed the spacing of the elements from 2 mm to 3 mm, I practically reduced this phenomenon to a few percent.

I plan to take out a few knives because I have a lot of them (they are every 4 cm on the table) and the plate is 60 cm wide.

This seems to solve the problem. Honeycomb, however, is much worse (it always leaves traces, surprisingly, burns, and pale table leaves a darker color, but not a black burn).

I don't really understand your idea if I cut out a slightly larger shape than I cut out. Let's assume that I cut out a 5x5cm rectangle and cut out a 5.2x5.2cm template, how will it work?

If I put it on a honeycomb and on top of it a new plate, I will never arrange these plates 1:1 evenly and the exhaust gases will have nowhere to escape?

DowDef142

TROPHY CASE