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Laser engrave powder coated aluminum

6 Beiträge
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(@mathieu-hebbrecht)
Beiträge: 16
Eminent Member
Themenstarter
 

Hi all,

I'm verry happy with my stepcraft. And I want to expand my possibilities.
I mainly mill aluminum and wood. And I want to be able to laser engrave these materials with my stepcraft.
I'm aware that engraving aluminum requires a lot of power, but I actually don't mean engraving the aluminum. My alu material is in most case anodized of black powder coated. So I wish to engrave the powder coat/anodize layer to apply text or other custom artwork.
Can that be done with a stepcraft?
I don't know where to look... can somebody help me?
Is the stepcraft laser head available for sale yet? Will it fit the job?

Kind regards,
Mathieu

 
Veröffentlicht : 23/08/2016 2:20 pm
ZenziWerken
(@speedo)
Beiträge: 901
Noble Member
 

How about the Mini Engraving Point?

Daniel
-----
zenziwerken.de « dxf-downloads von kreativen Projekten
cnc-wiki.de « lesen ... lernen ... fräsen

 
Veröffentlicht : 24/08/2016 12:39 am
(@mathieu-hebbrecht)
Beiträge: 16
Eminent Member
Themenstarter
 

I think the mini engraver will scatter the powder coat rather then giving nice clear edges.
I'm having a lot of troubles with my t-slot bed not being flat. which causes small mill/engraving point to break. So laser engraving the powder coat will be more effective get nice and clean engraving then using mill.
That is my experience of course.

So I was think a laser which is no heavy enough to engrave the aluminum but heavy enough to get through the coat would be ideal, plus the resolution of a laser is probably a bit better. I think height differences less then 1 mm won't make any difference on the laser engraving.

Does anyone has experience with this?

 
Veröffentlicht : 25/08/2016 10:42 am
(@alanuk)
Beiträge: 34
Eminent Member
 

I personally do not have any laser experiance, but a commercial company I use for acid etching has laser units (3) but not designed for cutting metal, they will not use them for cutting wood if there is a risk the laser can touch metal, (I wanted to have thin wooden planks engraved that were fixed to a thin metal sheet) as the laser can bounce back up damaging the laser head, not sure if this applies to all lasers, but thought I would post it as I know it can be a serious problem.

Alan

SC600/2, Kress 1050, UCCNC with UC100, Cut2D Pro, TurboCAD and Fusion 360

 
Veröffentlicht : 25/08/2016 11:29 am
(@mathieu-hebbrecht)
Beiträge: 16
Eminent Member
Themenstarter
 

Never thought of that, but I could be a problem.
I don't have experience myself so I'm waiting until someone comes by with the right knowledge.

 
Veröffentlicht : 25/08/2016 11:34 am
(@bvs)
Beiträge: 1139
Noble Member
 

Hello
Engraving is no Problem.
Just make the Underground Flat.
I use a vacuumtable.
On the picture i engraved 0,1 mm deep .

 
Veröffentlicht : 25/08/2016 1:56 pm
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