If a 3D printed bar material is RF & weather ok, then even FDM could
taper the slot a bit or add a small entry bulge to capture the wire.
The resin printers would even be better since a homogeneous solid part
can be made and they are happier printing overhangs. I agree, likely one
model for each wire gauge. A smart CNC programmer could parameterize
everything to automate the STL file generation - wire gauge, & bar slot
pitch, taper, w, l, h.
The commercial CNCsomething open feed line spreaders work the way you
want but only for 14ga THHN wire IIRC.
Grant KZ1W
On 1/18/2023 17:15, Brian Beezley wrote:
"My final choice was slotted acrylic bars for strength, water and UV
resistance, and ease of solvent gluing the wires in place."
Grant, after seeing several neat coil form designs in the style of Air
Dux, I've been wondering if a precisely shaped groove might hold the
wire reliably without glue. I imagine it snapping into place with a
satisfying sound. I suppose this would work well only for a single wire
gauge.
Brian
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