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    PCB Desgins

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    timgarrod
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    PCB Desgins

    Post  timgarrod on Wed Jan 17, 2018 10:09 pm

    Hi All,

    Been a busy couple of months and learning alot (head hurts) arduino/cad and now PCB Designing.

    Brought a 3d printer and loving it. Found you can convert it to be a cnc mill and plotter so thought i would give a go at printing my own boards as mine stripboard as not nice to see lol.

    its only a basic layout but thought i give it a go. Off to maplin on the weekend to buy the fluid and boards.





    Hopefully this will help in future builds.

    please let me know if i draw then wrong if it there's a better way to do them.

    cheers
    tim
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    david f
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    Re: PCB Desgins

    Post  david f on Thu Jan 18, 2018 10:02 am

    Hi Tim.
    That looks really good!

    I didn't know that 3D printers could also do this. How is it done??

    I have made PCBs by the etch method and it is rather laborious and messy for one-off boards. This method looks to have a lot of potential for us.

    I don't know what software you are using for the design? (I used Eagle some years back.)

    You have made the board quite spacious which can be good for we amateurs. ( Don't forget to make the copper lands bigger if they are carrying much current.)

    David

    timgarrod
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    Re: PCB Desgins

    Post  timgarrod on Thu Jan 18, 2018 6:55 pm

    Thanks David, still getting my head round it so hopfully make it smaller.

    I got the idea from the videos on youtube and a perminment marker.


    Been using Fritizing and design spark to make them. with this it makes the 3d more usefull. will see how it comes out on the weekend.

    Cheers
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    salmon
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    Re: PCB Desgins

    Post  salmon on Sun Jan 21, 2018 5:15 pm

    This is interesting! I will be looking forward to your updates.


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    If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.
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    david f
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    Re: PCB Desgins

    Post  david f on Thu Jan 25, 2018 3:32 pm

    I see!

    I suppose I was hoping to avoid an etching step but you would need a CNC mill to do that?

    Which raises the question (looking at my limited bench space) can you get 3D printers which also have a milling attachment? Nice to have the ability to "giveth AND taketh away".

    I see that the video shows an etch resistant pen. I wonder if you could deposit a thin layer of plastic on the copper? Could avoid problems of the etchant getting under the resist and could provide a dimple for the drilling operation. (I seem to remember breaking quite a few drills!)

    Very interesting!

    David



    timgarrod
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    Re: PCB Desgins

    Post  timgarrod on Thu Jan 25, 2018 6:53 pm

    Hi David,

    quick answer i yes. there also dremel designs you can print off.

    Having a issue with the printing at the moment as the pen hold is so far away from the print head it keep drawing off the table.

    will not let this beat me :)


    tsenecal
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    Re: PCB Desgins

    Post  tsenecal on Tue Jan 30, 2018 4:54 pm

    david f wrote:I see!

    I suppose I was hoping to avoid an etching step but you would need a CNC mill to do that?

    Which raises the question (looking at my limited bench space) can you get 3D printers which also have a milling attachment? Nice to have the ability to "giveth AND taketh away".

    I see that the video shows an etch resistant pen. I wonder if you could deposit a thin layer of plastic on the copper? Could avoid problems of the etchant getting under the resist and could provide a dimple for the drilling operation. (I seem to remember breaking quite a few drills!)

    Very interesting!

    David



    i too was curious if it was possible... i find that this guy seems to know what he is doing when it comes to 3d printers... so i would pattern my conversion after his...

    https://www.youtube.com/watch?v=MDz1A1XDOt8&t=134s

    timgarrod
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    Re: PCB Desgins

    Post  timgarrod on Tue Jan 30, 2018 5:40 pm

    totally agree. I think the idea will work out for the 3d printer but thinking dont what to damage it by putting extra stress from milling. I like th idea of the t8 cnc mills. about the same price as the 3d printer and built to do the job

    So gone back to basics and use tonner and iron. printed two board now, first one came out really well but i made the signal track too thin and rubbed off. the 2nd one was alot better but i don't think i cleaned the board off enough as some of the tonner can off and sharpe didn't mark the gap. it still usable for testing drilling and soildering. I a step learning curve but in the end i will pay off.

    tsenecal
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    Re: PCB Desgins

    Post  tsenecal on Thu Feb 01, 2018 4:57 pm

    this just popped up on my youtube recommended videos:

    https://www.youtube.com/watch?v=V0AHc3CA9NU

    which, if you don't want to watch the video, points to:
    https://makezine.com/2014/03/27/quickly-prototypes-circuits-with-new-inkjet-printable-conductive-ink/

    timgarrod
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    Re: PCB Desgins

    Post  timgarrod on Fri Feb 02, 2018 7:01 pm

    looks good idea.

    oh well after 3 attempts, finally got a good board made. was over the moon.
    printed both sides and drilled(only broke 10 0.6 dril bits). only to find out i printed the circut board the worng way round lol i mirror the print with out needing to doh!
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    david f
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    Re: PCB Desgins

    Post  david f on Sat Feb 03, 2018 9:26 am

    Darn! It is very easily done and very annoying.

    I have also etched  and drilled a board which was accidentally 3/4 of full size so no components fitted!

    That is probably why I ended up going to a "Board House" (Olimex in Bulgaria were good and cheap then) to have about 10 made up.

    But that is no solution if you just want a one-off.

    Which brings me back to cnc milling of boards. Sounds like a good idea. But having now viewed Tim S's video of the combined 3d printer/ miller I can now see THAT is not a great solution. (Problems with having to "beef-up" the mechanical components to cope with sideways loads and metal swarf (chips) wreaking havoc on electronics.

    Why is nothing easy and why do I have so little bench space to house a cnc miller and a 3d printer, even if I could afford them both!?

    David

    timgarrod
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    Re: PCB Desgins

    Post  timgarrod on Sat Feb 03, 2018 8:06 pm

    Really pleased with the way it turned out. Only one mistake where one off the component where larger than I thought. Now to power it up and hope I don't get magic black smoke lol




    tsenecal
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    Re: PCB Desgins

    Post  tsenecal on Sun Feb 04, 2018 3:16 am


    timgarrod
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    Re: PCB Desgins

    Post  timgarrod on Sun Feb 04, 2018 10:51 am

    same, for the price its worth a try. watched a lot of video on it and seams to work well.

    might get on but saving up for a lathe first.

    did have a panic attach when powering it up as only one part worked. messed up the code in the arduino lol.

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    david f
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    Re: PCB Desgins

    Post  david f on Thu Feb 08, 2018 9:02 am

    So I have decided to put my toe in the water for 3D printers.

    I have just placed an order for a Tronxy X1 from China for £115. (Small enough to fit on my desk and cheap enough to "bin" if it doesn't work out!)

    I have also added 3D printers to the CAD/CAM section on the Forum. Let me know if you think that this area of growing importance needs even more emphasis.

    David

    timgarrod
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    Re: PCB Desgins

    Post  timgarrod on Thu Feb 08, 2018 6:47 pm

    good luck David. i would use fusion 360 to designs the parts. full autocad program and free for hobby use too

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