Surf PI that likely will be apprehended....

[Nezocas]

Hi,

I just solder every component in its place
Used as a reference the list of components in Silverdog store, I think its very hard to make a mistake.
I leave some photos for quick evaluation and where I will describe the difficulties encountered.

In this first picture I had some difficulty in placing the C16 and R3 due to the area being overcrowded by IC U1


In this second picture, I chose to put the jumper wire, as some colleagues advised in other topics.


Here too, had difficulties in placing the Delay potentiometer in place, because I had to let it twisted to one side.....I also noticed that some Members leave this one on the outer box ....is really needed?

Also left 2 hooks to perform the calibration, after that will be removed ....


In this photo you can already see extensions to the tune / volume / speaker
Here I will need help because I do not know which color should I connect to which leg of the potentiometers


What are the next steps to take... connect the potentiometers .... power the board up and make adjustment / testing.....or start to build the coil

Best regards
Nezocas

[Nezocas]

Hi,

First of all I have to thanks to Silverdog....what a superb Kit, because I forgot to thank him, upon the Kit arrival.
And then thanks to the excellent tips you have all indicated so far.
Will report soon.

Regards

[silverdog]

My self I like to Load and solder all Power supply components.

Apply battery and check all points for correct power.

Don't forget the issue with R18 and R22!

These are a new batch of boards with corrected R18 / R22 silkscreen

[satdaveuk]

By looking at the kit there silverdog sent you, dont think you can go far wrong, even the resistors are marked up so you you dont even have to read the colour codes, all component values are marked on the pcb so just follow them carefully .
If you have never soldered before get a bit of wood and hammer in some panel nails, there copper looking with very small heads, once you done that get some wire, 13amp fuse wire size and do one wrap round per nail following through.
The art of soldering is 1st make sure everything is clean ,2nd a skim of solder to the iron bit, 3rd apply iron bit to area to be soldered, 4th feed the solder through the joins not the iron bit, 5th once the solder has run between component and pcb print pull away the job is done.
Ive seen some very clever engineers who actually cant solder properly, the common problem is instead of going in and out of the event in short time as possible they doodle with it either the solder hasnt run or they have crucified the component and pcb which ends up what we call in the trade as bird ****, ie instead of a nice smooth joint its splattered.
If your joining two wires as previous make sure there clean then tin both wires before joining them together and then the same applys iron bit on joins then feed a small amount of solder through the joins not the iron bit.
The iron bit is to melt the solder and heat the items your soldering, nothing more nothing less.
Im sure you will do ok just treat the parts as fragile, dont keep bending the leads back and forth on them and dont roast them.
This takes me back a few years,with the nails idea my dad had me doing it when i was 11, but was a normal way of training in those days.

All the best

[homefire]

My self I like to Load and solder all Power supply components.

Apply battery and check all points for correct power.

Don't forget the issue with R18 and R22!

[UFO]

Solder everything on and make adjustments after.

[Nezocas]

Hi there,

I just received the Surf Kit



What is the proper way to assemble it... Do I have to weld a specific part of the circuit and make the necessary adjustments, before proceeding to solder the remaining components, or can I solder all components on the board and make all the necessary adjustments only in end of the whole kit assembled..?

Best regards
Nezocas

[Nezocas]

Hi,

First of all I want to give congratulations to the all members for the excellent work developed here.
What led me to try to find information about a homemade metal detector, was the Portuguese legislation, because it does not allow detection on the beaches.
Do not wanna lose my GoldmaxxPower V4 or my Minelab Explorer SE, to the cops and still carry a heavy fine.
IGSL I think is a little advanced for me to start building, so I had thought about the Surf PI. I have all the equipment needed for construction.



I would like to make this topic a well detailed step-by-step, to help my detecting Portuguese colleagues and of course all those who have little knowledge and want to follow your design.
Expect lots of questions, even using the oscilloscope that is new here at home (never used one).
The next step will be to purchase a longboard from Silverdog's shop.

Best regards
Nezocas