Just a question: Minimum practical size?

[kubycsolutions]

Lovely design, and many thanks for parameterizing and documenting it so well.

Apologies if I've missed this one in the docs: Have you done any experiments to see what the minimum center-to-center distance could be while still operating well? I have an button-matrix application where that's about half an inch; full-size keyboards run closer to 3/4".

[riskable]

The distance from the center of the switch to the magnet is 3.25mm (it's hard coded--for now) and the diagonal width of the sheath is ~12mm. So the minimum width/length of the switch with default settings is going to be 12mm+some space for wall thickness so it should fit within 0.5inches (12.7mm).

Another thing you can do is use 3x2mm magnets instead of 4x2mm... Then you can decrease the STEM_DIAMETER and you'll end up with a sheath that's skinnier. You can also try setting STABILIZER_STEM = true; which will give you a stem with a + that's flat instead of at a 45° angle. This would enable you to place the sheath into the body (or just a top plate with the correct cutout shape) horizontally instead of vertically. Just make sure your sensors are 3.25mm away from the center of the footprint and it should work fine. In this situation you'd be making a switch that had the magnet just below or above the center of the switch instead of diagonally in the corner.

There's all sorts of other values you can play with to squeeze the switch into a tighter space like WALL_THICKNESS, MAGNET_WALL_THICKNESS, etc etc. You can also use a smaller magnet in the stem but keep the body magnet the usual 4x2mm size (mix & match). You may have to go into sheath.scad and fudge a few of the values to make things line up though. If you read the comments I have loads of info about places where that might be necessary for certain types of adjustments.

[kubycsolutions]

Many thanks once again!--Sent from palmtop; apologies for any auto-incorrections.() | ASCII Mail Campaign/\ | Stamp out HTML mailOn Jan 20, 2022 9:36 AM, Riskable ***@***.***> wrote: The distance from the center of the switch to the magnet is 3.25mm (it's hard coded--for now) and the diagonal width of the sheath is ~12mm. So the minimum width/length of the switch with default settings is going to be 12mm+some space for wall thickness so it should fit within 0.5inches (12.7mm). Another thing you can do is use 3x2mm magnets instead of 4x2mm... Then you can decrease the STEM_DIAMETER and you'll end up with a sheath that's skinnier. You can also try setting STABILIZER_STEM = true; which will give you a stem with a + that's flat instead of at a 45° angle. This would enable you to place the sheath into the body (or just a top plate with the correct cutout shape) horizontally instead of vertically. Just make sure your sensors are 3.25mm away from the center of the footprint and it should work fine. In this situation you'd be making a switch that had the magnet just below or above the center of the switch instead of diagonally in the corner. There's all sorts of other values you can play with to squeeze the switch into a tighter space like WALL_THICKNESS, MAGNET_WALL_THICKNESS, etc etc. You can also use a smaller magnet in the stem but keep the body magnet the usual 4x2mm size (mix & match). You may have to go into sheath.scad and fudge a few of the values to make things line up though. If you read the comments I have loads of info about places where that might be necessary for certain types of adjustments. —Reply to this email directly, view it on GitHub, or unsubscribe.Triage notifications on the go with GitHub Mobile for iOS or Android. You are receiving this because you authored the thread.Message ID: ***@***.***>