#silkscreen — Public Fediverse posts

My #BMS #PCBs arrived from @aislerhq and they look nice. I designed it because I couldn't find 3S BMS for #LiFePO4 cells and didn't like the voltage thresholds of the cheap #LiIon ones.
It uses the #BQ77915 chip from #TexasInstruments. Size is 63x50mm.
While fetching all components according to the BOM, I noticed the #diode had the #footprint SOT-323 assigned. I only have SOT-23 ones :blobcatgoogly:
I'm glad that I can still make it fit, and the third leg isn't used at all (it's a single diode).
Can't wait to find some time to finish soldering a few and try them out.
It supports 3S up to 5S, and I added #silkscreen part to mark how it's configured.
The back has detailed instructions, so I don't forget them.

"Collapse" limited edition #screenprints!
https://www.mikesfurnace.com/product/collapse

50x70cm, white inks on 250gsm black paper, #silkscreen printed by InkSpit Rats.
Artwork originally created as apparel design for GRIMAZE.

#artprints #prints #shopindie #artprintsforsale

About that BusBoard Prototype Systems SB4 board -- they're expensive. They're more than $6 each (Canadian) plus shipping from DigiKey. They're $10 each plus shipping from Mouser.

That's a lot for a hobbyist when you're experimenting, especially if you're making mistakes.

I looked around again recently, and couldn't find anything I liked at a reasonable price point.

So what does one do in this situation? Well, if you go Overkill 9000, you design your own prototyping perfboard and have a bunch manufactured for you! When you design your own, you can give it any features you like. So this one has:

18 x 36 (648 holes total)

It's two 18 x 18 sections, though I didn't have them scored for snapping.

A total of 6 horizontal busses in groups of 2, at the top and bottom plus one in the middle.

3 sets of 2 vertical busses within that space between horizontal bus sets, similarly edge - center - edge.

Then each row has a 6-hole pad on each side of the center 2 busses, which are spaced for IC or other standard 0.4" component layout.

Made of proper FR4 fiberglass. Good copper, good soldermask.

Silkscreened row and column IDs on both the front and back, at both the start and end of each row/column (and they match up with the back...).

And silkscreened boxes on the front showing the pad/buss pattern - no more flipping!

They arrived today and ... they're beautiful.

2/x

#PCB #CustomPCB #silkscreen #overkill #Overkill9000 #buss #busses #pads #components #IC #DIP

About that BusBoard Prototype Systems SB4 board -- they're expensive. They're more than $6 each (Canadian) plus shipping from DigiKey. They're $10 each plus shipping from Mouser.

That's a lot for a hobbyist when you're experimenting, especially if you're making mistakes.

I looked around again recently, and couldn't find anything I liked at a reasonable price point.

So what does one do in this situation? Well, if you go Overkill 9000, you design your own prototyping perfboard and have a bunch manufactured for you! When you design your own, you can give it any features you like. So this one has:

18 x 36 (648 holes total)

It's two 18 x 18 sections, though I didn't have them scored for snapping.

A total of 6 horizontal busses in groups of 2, at the top and bottom plus one in the middle.

3 sets of 2 vertical busses within that space between horizontal bus sets, similarly edge - center - edge.

Then each row has a 6-hole pad on each side of the center 2 busses, which are spaced for IC or other standard 0.4" component layout.

Made of proper FR4 fiberglass. Good copper, good soldermask.

Silkscreened row and column IDs on both the front and back, at both the start and end of each row/column (and they match up with the back...).

And silkscreened boxes on the front showing the pad/buss pattern - no more flipping!

They arrived today and ... they're beautiful.

2/x

#PCB #CustomPCB #silkscreen #overkill #Overkill9000 #buss #busses #pads #components #IC #DIP

About that BusBoard Prototype Systems SB4 board -- they're expensive. They're more than $6 each (Canadian) plus shipping from DigiKey. They're $10 each plus shipping from Mouser.

That's a lot for a hobbyist when you're experimenting, especially if you're making mistakes.

I looked around again recently, and couldn't find anything I liked at a reasonable price point.

So what does one do in this situation? Well, if you go Overkill 9000, you design your own prototyping perfboard and have a bunch manufactured for you! When you design your own, you can give it any features you like. So this one has:

18 x 36 (648 holes total)

It's two 18 x 18 sections, though I didn't have them scored for snapping.

A total of 6 horizontal busses in groups of 2, at the top and bottom plus one in the middle.

3 sets of 2 vertical busses within that space between horizontal bus sets, similarly edge - center - edge.

Then each row has a 6-hole pad on each side of the center 2 busses, which are spaced for IC or other standard 0.4" component layout.

Made of proper FR4 fiberglass. Good copper, good soldermask.

Silkscreened row and column IDs on both the front and back, at both the start and end of each row/column (and they match up with the back...).

And silkscreened boxes on the front showing the pad/buss pattern - no more flipping!

They arrived today and ... they're beautiful.

2/x

#PCB #CustomPCB #silkscreen #overkill #Overkill9000 #buss #busses #pads #components #IC #DIP

About that BusBoard Prototype Systems SB4 board -- they're expensive. They're more than $6 each (Canadian) plus shipping from DigiKey. They're $10 each plus shipping from Mouser.

That's a lot for a hobbyist when you're experimenting, especially if you're making mistakes.

I looked around again recently, and couldn't find anything I liked at a reasonable price point.

So what does one do in this situation? Well, if you go Overkill 9000, you design your own prototyping perfboard and have a bunch manufactured for you! When you design your own, you can give it any features you like. So this one has:

18 x 36 (648 holes total)

It's two 18 x 18 sections, though I didn't have them scored for snapping.

A total of 6 horizontal busses in groups of 2, at the top and bottom plus one in the middle.

3 sets of 2 vertical busses within that space between horizontal bus sets, similarly edge - center - edge.

Then each row has a 6-hole pad on each side of the center 2 busses, which are spaced for IC or other standard 0.4" component layout.

Made of proper FR4 fiberglass. Good copper, good soldermask.

Silkscreened row and column IDs on both the front and back, at both the start and end of each row/column (and they match up with the back...).

And silkscreened boxes on the front showing the pad/buss pattern - no more flipping!

They arrived today and ... they're beautiful.

2/x

#PCB #CustomPCB #silkscreen #overkill #Overkill9000 #buss #busses #pads #components #IC #DIP

About that BusBoard Prototype Systems SB4 board -- they're expensive. They're more than $6 each (Canadian) plus shipping from DigiKey. They're $10 each plus shipping from Mouser.

That's a lot for a hobbyist when you're experimenting, especially if you're making mistakes.

I looked around again recently, and couldn't find anything I liked at a reasonable price point.

So what does one do in this situation? Well, if you go Overkill 9000, you design your own prototyping perfboard and have a bunch manufactured for you! When you design your own, you can give it any features you like. So this one has:

18 x 36 (648 holes total)

It's two 18 x 18 sections, though I didn't have them scored for snapping.

A total of 6 horizontal busses in groups of 2, at the top and bottom plus one in the middle.

3 sets of 2 vertical busses within that space between horizontal bus sets, similarly edge - center - edge.

Then each row has a 6-hole pad on each side of the center 2 busses, which are spaced for IC or other standard 0.4" component layout.

Made of proper FR4 fiberglass. Good copper, good soldermask.

Silkscreened row and column IDs on both the front and back, at both the start and end of each row/column (and they match up with the back...).

And silkscreened boxes on the front showing the pad/buss pattern - no more flipping!

They arrived today and ... they're beautiful.

2/x

#PCB #CustomPCB #silkscreen #overkill #Overkill9000 #buss #busses #pads #components #IC #DIP

"Collapse" limited edition screen prints are now available!
https://www.mikesfurnace.com/product/collapse
50x70cm, white inks on 250gsm black paper, #silkscreen printed by InkSpit Rats.
Artwork originally created as apparel design for GRIMAZE.
#artprints #prints #shopindie

PCB Finishes Hack Chat - Join us on Wednesday, March 11 at noon Pacific for the PCB Finishes Hack Chat with Mark Hughes and E... more: https://hackaday.com/2020/03/09/pcb-finishes-hack-chat/ #hackadaycolumns #thehackchat #silkscreen #plating #nickel #resist #enig #gold #hasl #osp #pcb