this post was submitted on 23 Nov 2024
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Me a few days ago, shopping on Amazon: "All the component and jumper wire leads are going to be on the bottom anyway; why shouldn't I get a pack of single-sided breadboards for $6.25 instead of double-sided ones for $10?"

Me today, after having lifted three pads off the damn board in 10 minutes: "Oh, that's why."

Get the double-sided breadboards; they're worth it.

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[–] cmnybo@discuss.tchncs.de 2 points 4 months ago (2 children)

The solder joints will be a lot stronger too. The solder will flow through the plated through hole and create a strong mechanical connection.

The pads shouldn't be lifting off the single sided boards though. Either the boards are crap quality or you're overheating the pads.

[–] grue@lemmy.world 2 points 4 months ago

Either the boards are crap quality or you're overheating the pads.

Or both, probably!

[–] JustEnoughDucks@feddit.nl 1 points 4 months ago

Double sided perfboards way more often than not don't have plated vias. The vast majority are just etched from a 2 layer blank without any post processing.

You would have to solder specifically on both sides in order to increase the strength.

But yes pads lifting is almost exclusively from dumping way too much heat in it. Because there is no plated through hole, it also has ~1/4 of the thermal mass so it is easier to overheat and damage the adhesive.

[–] cynar@lemmy.world 1 points 4 months ago (1 children)

If your pads are lifting, you're overheating the board.

A couple of tips that can help a lot.

Don't underestimate the importance of flux. Cheap boards often have a lot of crap on the copper. Flux burns this off, allowing for quicker, better joints. Most solders have flux in them, some more than others. Beyond that, you can also buy rosin flux very cheaply. It's amazing for cleaning up particularly bad, or sensitive, components.

Have confidence when heating. Most newbies tend to 'dab'. They are scared to overheat the component or board, and so try to add a little heat at a time. This is actually FAR worse for heat. The heat spreads out into the components and glue, causing problems. Instead, you apply heat once. The iron stays in place until the joint forms. If you back off, you need to wait a few minutes until everything is completely cool to the touch. No tap-tap-taping.

The last point of note is to check your lighting. Most beginners struggle to actually see what they are doing. In low light, our pupils open up, to allow more in. This reduces our depth of field, and makes it harder to focus clearly. You want daylight levels of light on your workpiece. There are several apps that let you measure light levels. You might be shocked at how low it is. Multiple directional lights are the best option. You want it focused to maximise brightness, but multi source to avoid harsh shadows.

You might have figured out most of these, but hopefully, some of it will be of help.

[–] isolatedscotch@discuss.tchncs.de 1 points 4 months ago

the last one is so true, I never realized how dark my desk was until I tried soldering and couldn't do shit without an extra desk lamp

[–] Interstellar_1@lemmy.blahaj.zone 0 points 4 months ago (1 children)

What are double sided breadboards?

[–] DannyBoy@sh.itjust.works 1 points 4 months ago* (last edited 4 months ago)

Perfboards?

These can be double sided and can be soldered to.

Breadboads can only be one sided.

Edit: this is a solderless breadboard. Non-solderless breadboards do exist, as I learned today.