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Using double sided Dot boards (Read 1352 times)
phaedrus
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Using double sided Dot boards
Oct 3rd, 2017 at 7:08am
 
Hello kind Sirs,
I saw double sided Donut boards available from China at pretty cheap rates.
Would love to have some tips or user experiences with these boards as against the "normal" single sided boards.
Cheers
Thomas
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Roger
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Re: Using double sided Dot boards
Reply #1 - Feb 10th, 2018 at 7:03am
 
I too would also like to know how you use doughnut boards with veecad as I can not see a way of wiring up parts.printing a graphical representation of the netlist does seem to be available either.
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Roger Lascelles
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Re: Using double sided Dot boards
Reply #2 - Feb 10th, 2018 at 10:19am
 
Hello Thomas

Can you provide a link to the board? I would like to be sure what you mean.

Roger
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Roger Lascelles
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Re: Using double sided Dot boards
Reply #3 - Feb 10th, 2018 at 10:20am
 
Welcome to the forum Roger

The VeeCAD help file topic "Layout Hints -> Other Board Types" has a section on the donut pattern. In VeeCAD you place links between the pins of your parts, and later on you solder bare wires on the bottom of your board. VeeCAD checks your layout for errors as usual.

At the very simplest, you can place parts in the same relative locations as on the schematic, and replace the schematic wires with links. That works nicely for simple circuits. Once you get started, you will find your technique. If you are stuck, email me your schematic and I will send you a step by step set of screen shots of a layout.

For a graphical representation of the netlist, I would print out the schematic diagram.

Roger Lascelles
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phaedrus
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Re: Using double sided Dot boards
Reply #4 - Feb 13th, 2018 at 8:36am
 
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Roger Lascelles
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Re: Using double sided Dot boards
Reply #5 - Feb 13th, 2018 at 11:12am
 
Thanks for the link Thomas

I see plated through holes. The pads can be bridged by solder, or a bare wire can be run along a row of pads as for ordinary donut board. I think the solder bridge gaps run vertically on one side, horizontally on the other. Nice kit with power connector, switch, LEDs, USB connector, standoffs. Board is fibreglass.

VeeCAD will handle this board as donut pattern, but the off-grid connectors and switch will not fit. If anyone is getting the board, let me know and I will create a custom board pattern that includes the off-grid parts represented as surface mount.
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