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Well 3D printers don’t “spray” they “extrude” and folks use various tricks to get the stuff to stick including heating the board, hair lacquer, dilute PVA glue and various types of glue stick.
My printer has a glass sheet on and the bed gets warm enough for the PLA to stick, but I am not sure how acid resistant it is and how resistant to undercut it would be.
The first layer adhesion is the thing that is tricky, and for pcb etch it would have to be perfect.
Dave
G4UGM
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
Sent: 04 January 2016 22:25
To: Homebrew_PCBs@yahoogroups.com
Subject: RE: 3-D printer resist application? (was: Re: [Homebrew_PCBs] Anyone milling PCBs?)
Wouldn’t the board need to be heated so the resist being sprayed from the 3 D printer would have time to get on the copper before it solidifies?
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
Sent: Monday, January 04, 2016 3:00 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: Re: 3-D printer resist application? (was: Re: [Homebrew_PCBs] Anyone milling PCBs?)
How about developing a spot tin plating head with that type of resolution? For use on 3d printers?
On 4 Jan 2016 03:20, "Brad Thompson brad.thompson@... [Homebrew_PCBs]" <Homebrew_PCBs@yahoogroups.com> wrote:
On 1/3/2016 6:05 PM, Aaron Turner synfinatic@... [Homebrew_PCBs]
wrote: > I'm curious- has anyone tried using Fusion360 for CAD/CAM for milling
Hello--
> PCB's? I've used Fusion360 with great results for designing parts for
> my 3D printer and it includes a pretty decent CAM module I'm told.
> And unlike BobCAD, it's free if you make less then $100k/year using
> the software which makes it a great choice for non-professionals.
>
I inquired about this topic (deposition of plastic extruded resist
directly onto copperclad board via 3-D printer) a while
ago. Has anyone recently experimented with this approach? It's the
inverse of a subtractive (milling) process,
but the CAD/CAM software should equally well apply.
Thanks, and 73--
Brad AA1IP
------------------------------------
Posted by: Brad Thompson <brad.thompson@...>
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