![]() And when I ran a trial of make a PCB from my schematic, it had no errors and actual looked like a PCB. I'm good with assigning a pattern to a component. I think I understand the PAD and the silk (outline). I do not have a handle on the layers and process of making a board. I am bumping that way up to 0.100" per bend. This makes getting in and out with an iron a snap if you need to do any rework or repairs." The lead bend from body at. While you can get them closer, if you've got the board space use it. As far as component to component spacing, I tend to lay out 1/2w and 1w resistors with about 200 thou ( 0.51mm) spacing between them, and 1/4w at around 150 thou (0.38mm). With respect to the pad and hole size, take the nominal lead diameter and add 12thou (0.3mm) and round up to the nearest drill size for your hole, then double that value for the pad size. This should be approximately IPC standard but I may be wrong so don't quote me on that. Ideally you want about 100thou (0.25mm)between the bend and the body. "The thumb rule I like to use is 1w resistors get 700thou (1.78mm) pad to pad spacing, 1/2w 600 (1.52mm), 1/4w 500 (1.27mm), etc. Is that more acceptable? Here are AMDOC's suggestions. Do I use ANSI or ISO drill bit sizes? I tend to like my units to be mm, but all the drill sizes are in 1000ths, and that's what the doctor ordered. Which should I pick and why isn't round an option? (I think I'v picked oval) I've followed AMPDOCTOR's rules of thumb for PAD size and spacing. In the Pattern editor my options for PAD shape are Ellipse and Oval. That's because I keep screwing up my calc's and I am accumulating components. ![]() I have 30-50 set up, but I'll only need a dozen. Some quick tips about the user interface.Hi, I've been setting up my component and pattern libraries in DipTrace. For example, I might intentionally line up the pads of particular components - expecting to get straight traces between them - and the autorouter will still throw in a bend near the pads. The one thing that struck me as odd with the DipTrace autorouter is that it sometimes generates bends in traces when none should be required. Changing the trace widths (and tolerances) will alter the autorouter results, so sometimes I use the autorouter with small traces to produce a pleasing layout, then fatten up the traces later. I usually create layouts with thicker-than-usual traces because they give a better chance of producing usable PCBs with my home-etching method. When I increase the optimizations and limits, it seems to produce better layouts - but takes significantly longer. If you decide to give DipTrace a try, be sure to play with the "AutoRouter Setup" options. I don't have experience with any other layout software, so I can't give a comparative response. Only thing i have a problem with is it can't make slotted component holes (eg for 2.1mm psu sockets) I have asked the makers through the help facility and they say that is one of the things they are working on for the next update. ![]() I think Diptrace is a fantastic program, so easy to learn and the autorouter is very good. You now have the 2 parts of the pcb in one page where you can move them together and connect the nets that you want. right click your mouse in blank space and select paste. from the menu select open and open the circuit/ pcb you want to openĥ. select it by dragging the mouse over the whol part so you have a box around it.Ĥ. for me this is usually the pcb i have designed for the switch and jacks etc.Ģ. You just type in your question and you get an email answer of what to do.Īnyway you can copy one layout part to another, this is how its done.ġ. I've used it a few times, once for the exact question you are asking. A fantastic thing about diptrace is the help, weather you are a free user or registered user you can use the online help. Yes you can copy and paste one part to another.
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