BluepillF4 PCBs

What are you developing?
ag123
Posts: 854
Joined: Thu Jul 21, 2016 4:24 pm

Re: BluepillF4 PCBs

Post by ag123 » Mon Feb 05, 2018 3:27 pm

i almost have an impulse to join a group purchase, e.g. the boards
on the record i've 2 castellated nrf51822 boards
https://www.ebay.com/itm/NRF51822-YJ-14 ... 2396174917
after receiving them i'm dumbfolded as i'm not sure how i'm going to solder them, smt really takes some skill, it certainly isn't as simple as those 0.1 inch through hole boards :lol:

racemaniac
Posts: 696
Joined: Sat Nov 07, 2015 9:09 am

Re: BluepillF4 PCBs

Post by racemaniac » Mon Feb 05, 2018 4:45 pm

ahull wrote:
Mon Feb 05, 2018 3:09 pm
racemaniac wrote:
Mon Feb 05, 2018 12:46 pm
ahull wrote:
Mon Feb 05, 2018 11:42 am
Having the eyesight of a 20 year old would also help, but I've checked on ebay, and nobody appears to be selling this. :lol:
Thank god i got my eyes from the good side of the family XD
my sisters have to wear glasses, while i'll probably have eagle eyes till i'm 60 ^^
All bets are off when you hit 50 ;)
I had pretty much perfect vision till I was in my late forties, I now use reading glasses and complain about the writing on packaging, but I can still spot an eagle at 1000 yards.
60 is maybe a bit optimistic indeed, it'll be the same as my mother i guess, once past 50 hope for the best, but that gives me about 20 years of not needing glasses at the least :p

ChrisMicro
Posts: 318
Joined: Fri Mar 24, 2017 4:51 pm
Location: Germany

Re: BluepillF4 PCBs

Post by ChrisMicro » Tue Feb 06, 2018 8:30 am

60 is maybe a bit optimistic indeed,
The picture at the bottom shows the minmum seeing distance versus age.
The worst decrease is between the age of 45 and 50.
Image

parasole
Posts: 10
Joined: Tue Mar 28, 2017 3:07 am

Re: BluepillF4 PCBs

Post by parasole » Wed Feb 07, 2018 8:24 am

I did follow this topic since do have an interest for few boards, however instead of joining group buy I will order the boards myself, the postage will kill all the economy with group buy...
What I want to ask if you guys considered panelization, most vendors will offer 100x100 min.5 boards on same price as smaller ones, so may be we may benefit some cost down from panelization?
Squonk, is a big deal for you to panelize the design for say 100x100 PCB?
I know some vendors do not accept panelization and would charge you more (allpcb.com as an example), however there are plenty of them who just don't care, and from well known vendors seeedstudio.com seems to be the one...

User avatar
Squonk42
Posts: 323
Joined: Thu Dec 29, 2016 9:25 am
Location: Bordeaux, France

Re: BluepillF4 PCBs

Post by Squonk42 » Wed Feb 07, 2018 8:54 am

Right now, there is no economic goal with this batch, we just want to make them work :D

I did a pre-version from EagleCAD as a 100 mm x 100 mm panel with 5 boards (4 in one direction, 1 perpendicular) using SeeedStudio Fusion, I ended up paying $15.05 for 10 panels (50 boards), but I had to wait for 3 weeks before receiving them.
Image
Image
viewtopic.php?f=19&t=2633&p=38319#p38319

As we wanted to test these asap, we went through AllPCB with free and fast DHL delivery for $26, we should receive them this week or beginning of next week.

If you are EU or US, we can ship you some bare boards for <$2 using snail mail.
Last edited by Squonk42 on Wed Feb 07, 2018 8:59 am, edited 2 times in total.

racemaniac
Posts: 696
Joined: Sat Nov 07, 2015 9:09 am

Re: BluepillF4 PCBs

Post by racemaniac » Wed Feb 07, 2018 8:58 am

parasole wrote:
Wed Feb 07, 2018 8:24 am
I did follow this topic since do have an interest for few boards, however instead of joining group buy I will order the boards myself, the postage will kill all the economy with group buy...
What I want to ask if you guys considered panelization, most vendors will offer 100x100 min.5 boards on same price as smaller ones, so may be we may benefit some cost down from panelization?
Squonk, is a big deal for you to panelize the design for say 100x100 PCB?
I know some vendors do not accept panelization and would charge you more (allpcb.com as an example), however there are plenty of them who just don't care, and from well known vendors seeedstudio.com seems to be the one...
indeed, if we want to go for bigger batches, and don't care for it taking a few weeks, making a panel and then ordering it via seeed/dirtypcb/... is cheaper, but that's not our current goal :)
if you need panelized gerbers, let me know, and i'll create some (with mouse bites in between the panels)

victor_pv
Posts: 1864
Joined: Mon Apr 27, 2015 12:12 pm

Re: BluepillF4 PCBs

Post by victor_pv » Wed Feb 07, 2018 1:36 pm

The status shows "shipped" :D

Update:
Got a text from DHL, boards will arrive on Friday :D

parasole
Posts: 10
Joined: Tue Mar 28, 2017 3:07 am

Re: BluepillF4 PCBs

Post by parasole » Thu Feb 08, 2018 8:56 am

racemaniac wrote:
Wed Feb 07, 2018 8:58 am
if you need panelized gerbers, let me know, and i'll create some (with mouse bites in between the panels)
Thanks for your offer racemaniac, gladly would receive the panelized gerbers...

racemaniac
Posts: 696
Joined: Sat Nov 07, 2015 9:09 am

Re: BluepillF4 PCBs

Post by racemaniac » Thu Feb 08, 2018 9:02 am

parasole wrote:
Thu Feb 08, 2018 8:56 am
racemaniac wrote:
Wed Feb 07, 2018 8:58 am
if you need panelized gerbers, let me know, and i'll create some (with mouse bites in between the panels)
Thanks for your offer racemaniac, gladly would receive the panelized gerbers...
I'll do my best to create some tonight :)

parasole
Posts: 10
Joined: Tue Mar 28, 2017 3:07 am

Re: BluepillF4 PCBs

Post by parasole » Thu Feb 08, 2018 9:06 am

Squonk42 wrote:
Wed Feb 07, 2018 8:54 am
If you are EU or US, we can ship you some bare boards for <$2 using snail mail.
Yes Squonk42, I would take two boards, I may solder quickly one board (using STM32F405RGT6) and do a basic check exept for card reader which I don't have yet...

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