Proper Bridge Pin Fit
Tutorial transferred from old forum with comments.
With thanks to MasterFX This is a short tutorial how to create slotted holes in your PCB Design using DesignSpark PCB.
DesignSpark PCB doesn't come with a native function to create slotted holes, but it is pretty simple to achieve it with the provided range of functions, and most of the PCB manufacturers are able to use it.
Create a new technology file The first thing you have to slotted holes sizes, is to create a new technology file for the designs which shall use slotted holes.
I'm using "metric" 2 Select default units and precision Go to the next page and define the number of layers, solder mask etc.
Set the options according to the following image After that go to the "Layer" Tab and click "Add" Select as type the recently added layer type "Mechanical".
Also select your preferred color After that click "OK" and close the Design Technology dialog.
Save your design technology file.
Create a PCB Symbol In most cases you want to design a new PCB Symbol which has a slotted holes by default.
Files" and 2 select the new created technology file 3 Confirm with the OK Button After that click on "New Item" or if you're using the wizard select the technology file in the corresponding dialog Draw the "SMD pads" at first preferably.
After that draw the first through hole pad 1 which should get "slotted".
Right click on it and select Properties 2.
Set the shape to Oval 3 and adjust the length and width of the pad 4.
The length should be at least the length of the slot.
Save the PCB Symbol and create your component.
Select all the Layers you would like to output as Gerber file.
Select the mechanical plot and make sure only the mechanical Layer is selected as "Y" After pressing "Run" you get all your Plots in a separate file.
Normally the manufacturers expect specific file extensions for each layer e.
GTL, GBL, GTS, GBS, GTO, GBO.
The mechanical layer can be named ".
GM" or "GM1" for mechanical or milling layer.
If everything was fine the design could look like this: I hope this tutorial is useful to someone.
If you need some of them not plated, it needs to be described separately and the way depends on PCB manufacturer.
It can be another mechanical layer file or some drawing, text description etc.
How are plated slots achieved?
I love that NOTHING was left implied, and that you truly gave step-by-step instructions.
This is particularly useful to those of us who are electrical engineers and are just dipping their toe into the mechanical engineering waters!
I had searched for the PCB footprint for an "AA" battery contact, which has a 0.
Nothing from the manufacturer.
Google is usually my first "go-to", but I didn't do it on this problem, originally.
When I did, article source, I found your great tutorial.
In a matter of about 20 minutes between reading and actually doingI came up with the image shown AA Battery Contact PCB Footprint Thanks again!
Hi Nigel, this raises the question how do you create pcbs at home?
The problem with slots for the pcb manufacturers and home users is obviously you can't drill a slot.
For home use it's normally two drilled holes and a file whereas the pcb manufacturers mill them and charge a premium for this process.
However how do I get the slots plated?
I am putting a standard 2.
And the component has blade like components.
It required a solid through plated pad to see more the job.
It sounds like you are doing things correctly up to the point of generating the manufacturing plots.
In the tutorial, the output was to gerber files, and following the procedure shown would produce a gerber file for the mechanical layer in addition to the gerber files for the other layers.
The mechanical plot would be mostly empty except for the slots.
If you are going to PDF output to see if things look right, you probably want https://healthcareinsuranceplan.info/slot/sim-card-slot-htc-one-s.html plot combining the mechanical layer and the top or bottom copper.
Click on Top Copper in the Plots: window of the dialog.
Then click slotted holes sizes the Layers tab of the dialog.
The dialog slotted holes sizes look something like this: Double click on the N next to Mechanical in the right-hand box to change it to a Y, so the mechanical layer will be included in the plot of the top copper.
It will not visualise any more than the pink slot outline shown, so will be of no use in a pdf.
I created a "new PCB symbol" using a normal round pad more info changing to oval.
I created a new component using the new PCB symbol including the Sch symbol.
In that case I followed the instruction by adding also a rectangular shape allocated see more the new mechanical layer "Mechanical" I added the new component "slotted pad" I added the new layer "Mechanical" into the project.
I was then trying to see the slotted pad by printing into pdf but I did not see the plated slotted hole.
Of course, I made some many tries that may be my explanation is not accurate enough You explain te process by adding PCB symbol.
I think the key is that you are starting from the technology you usually use, and adding a mechanical layer to it so your designs based on this new technology file will have a place to put the slot mechanical info.
Likewise, some of the other settings in the first few steps can be as needed to match your needs - they don't have to be the same as in the example.
See the red arrow with number 1.
I'm using "metric" Where is that metric file?
It helped me much slotted holes sizes the solder pads of a bridge rectifier.
This will be most valuable to many users.
Hello All, I've accomplished making the slotted footprint etc, but when I run the DRC it gives me errors; P-P and T-P, pad to pad and track to pad.
Are these to just be ignored because there are pads over pads by design as described in tutorial?
TruLam Id Card Badge Slotted Hole Punch with Side and Depth Guides Desktop
9.7 OPTIONS OF WASHERS AND HOLE SIZES (ADDITIONAL GROUP) .... The dimensions of oversized holes and short slotted holes refer to ...
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