I think this is more directed at Lionel than anyone else, but how do I go about getting a PCB routed? (Assuming you have time - I did see that you're quite busy at the moment with rehearsals)
I have a simple geometric pattern to cut onto a PCB (no through holes). What file type do I need to provide and when would you be free? I have my own router bits too if that's an issue.
On Monday, 1 October 2012 at 3:02 PM, Spoz wrote:
> I think this is more directed at Lionel than anyone else, but how do I go about getting a PCB routed? (Assuming you have time - I did see that you're quite busy at the moment with rehearsals)
> I have a simple geometric pattern to cut onto a PCB (no through holes). What file type do I need to provide and when would you be free? I have my own router bits too if that's an issue.
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I was thinking that but I need the track width to be as precise as I can get it (~0.05mm resolution). Im assuming the router is more accurate than smushing toner onto a board?
Hmm, i've done 0.10mm tracks with toner ok, with some effort. You can do masks with acrylic paint and the laser cutter but thats the same issue as using the router, you need lionel atm.
On Monday, 1 October 2012 at 3:14 PM, Spoz wrote:
> I was thinking that but I need the track width to be as precise as I can get it (~0.05mm resolution). Im assuming the router is more accurate than smushing toner onto a board?
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On Monday, October 1, 2012 3:24:24 PM UTC+10, devians wrote:
> Hmm, i've done 0.10mm tracks with toner ok, with some effort. You can do > masks with acrylic paint and the laser cutter but thats the same issue as > using the router, you need lionel atm.
I think Josh is correct in suggesting toner transfer for this,
particularly if no through holes are provided. However, regardless of
either method, I doubt 0.01mm (10 micron) resolution is possible
without some very specialised equipment.
With milling, getting precise control of the track width is difficult,
particularly if using an angled bit (as used for engraving), because
the width will vary depending on the depth of the cut, and getting the
PCB flat enough for 50 micron resolution, let alone 10 micron, would
be next to impossible. You might be able to do it using an endmill bit
(which has consistent width regardless of the depth), but it would
have to be a very fine bit and you'd have to go *very* slow to prevent
breakage.
Lionel...
On Oct 1, 3:33 pm, Spoz <mr.s...@gmail.com> wrote:
> Yeah, it's a quarter wave impedance transformer for an antenna.
> I'd actually like to get 0.01mm accuracy if I can - 0.05mm is still a
> difference of 2 ohms.
> On Monday, October 1, 2012 3:24:24 PM UTC+10, devians wrote:
> > Hmm, i've done 0.10mm tracks with toner ok, with some effort. You can do
> > masks with acrylic paint and the laser cutter but thats the same issue as
> > using the router, you need lionel atm.
I have some brand new Kyocera end mills between 1.0 and 3.0mm diameter if you're willing to give it a try? It's simply two tracks in a quarter-circle shape, one 75mm and one 100mm diameter. Shouldn't take too long even on a very slow setting.
If it's all too difficult though I'll just use toner transfer and find a way to tune it later on. Is it worth a try?
On Tuesday, October 2, 2012 10:26:12 AM UTC+10, OperaMan wrote: > I think Josh is correct in suggesting toner transfer for this, > particularly if no through holes are provided. However, regardless of > either method, I doubt 0.01mm (10 micron) resolution is possible > without some very specialised equipment.
> With milling, getting precise control of the track width is difficult, > particularly if using an angled bit (as used for engraving), because > the width will vary depending on the depth of the cut, and getting the > PCB flat enough for 50 micron resolution, let alone 10 micron, would > be next to impossible. You might be able to do it using an endmill bit > (which has consistent width regardless of the depth), but it would > have to be a very fine bit and you'd have to go *very* slow to prevent > breakage.
> Lionel...
> On Oct 1, 3:33 pm, Spoz <mr.s...@gmail.com> wrote: > > Yeah, it's a quarter wave impedance transformer for an antenna.
> > I'd actually like to get 0.01mm accuracy if I can - 0.05mm is still a > > difference of 2 ohms.
> > On Monday, October 1, 2012 3:24:24 PM UTC+10, devians wrote:
> > > Hmm, i've done 0.10mm tracks with toner ok, with some effort. You can > do > > > masks with acrylic paint and the laser cutter but thats the same issue > as > > > using the router, you need lionel atm.
> I have some brand new Kyocera end mills between 1.0 and 3.0mm diameter if
> you're willing to give it a try? It's simply two tracks in a quarter-circle
> shape, one 75mm and one 100mm diameter. Shouldn't take too long even on a
> very slow setting.
> If it's all too difficult though I'll just use toner transfer and find a
> way to tune it later on. Is it worth a try?
> On Tuesday, October 2, 2012 10:26:12 AM UTC+10, OperaMan wrote:
> > I think Josh is correct in suggesting toner transfer for this,
> > particularly if no through holes are provided. However, regardless of
> > either method, I doubt 0.01mm (10 micron) resolution is possible
> > without some very specialised equipment.
> > With milling, getting precise control of the track width is difficult,
> > particularly if using an angled bit (as used for engraving), because
> > the width will vary depending on the depth of the cut, and getting the
> > PCB flat enough for 50 micron resolution, let alone 10 micron, would
> > be next to impossible. You might be able to do it using an endmill bit
> > (which has consistent width regardless of the depth), but it would
> > have to be a very fine bit and you'd have to go *very* slow to prevent
> > breakage.
> > Lionel...
> > On Oct 1, 3:33 pm, Spoz <mr.s...@gmail.com> wrote:
> > > Yeah, it's a quarter wave impedance transformer for an antenna.
> > > I'd actually like to get 0.01mm accuracy if I can - 0.05mm is still a
> > > difference of 2 ohms.
> > > On Monday, October 1, 2012 3:24:24 PM UTC+10, devians wrote:
> > > > Hmm, i've done 0.10mm tracks with toner ok, with some effort. You can
> > do
> > > > masks with acrylic paint and the laser cutter but thats the same issue
> > as
> > > > using the router, you need lionel atm.
