Minimig PCB run - interest thread

[basman74]

This is my 1st post.  :-P

Now I have to confess that I've never owned an Amiga before (I own Z-80, 6502 and Intel-based PC's) but after reading every thread about the Minimig, I made two conclusions...

1.) Dennis is an absolute legend! From a fellow designer, a good job on the PCB artwork too!
2.) I am interested in owning a Minimig board too :crazy:


Cheers,

Valentin

[basman74]

amigadave wrote:
Has anyone calculated what all the parts to produce a completed Minimig should add up to, minus the PCB itself?

For 100 off, My guess would be like this (prices are in USD) most prices were obtained from Digikey:

Per unit cost - Minimig Rev. 1.0

FPGA:          $19.25
PIC:            $5.15
PCB:            $7.00
2 x SRAM:      $14.50
68k CPU:       $11.00
misc IC's:      $1.80
MMC slot:       $2.20
Connectors:     $5.50
Headers:        $0.50
Passive parts:  $4.00
--------------------
Bare PCB:       $7.00
--------------------
parts delivery: $3.00
--------------------
Subtotal:      $80.90
--------------------
Assembly:      $25.00(hand assembled?)
--------------------
Unit cost:    $105.90
 
Deduct $32.00 from the above to give you your answer for parts cost minus PCB and assembly.

Cheers,

Valentin

PS: Using the 'Toner transfer' method to make the PCB would prove challenging, given the presence of the PQFP

[basman74]

So.. are you saying that the Minimig could well end up being your first Amiga? :-)

Yes.  8-) However, this may only be true if I don't buy (ideally) a '1200 first...

@ ottomobiehl:  Thanks!

Cheers,

Valentin

[basman74]

Basman, make that 11$ for the RAM: http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=428-1860-ND

Mikkel,

Yes, if someone were to modify the PCB artwork (there's a patch on that board that needs rectifying if i'm not mistaken), then your suggestion would be cheaper, of course :-)

While we're considering modification of the PCB, let's also look at:

http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=TC51WHM616AXBN70-ND

These PSRAM's would provide four times the memory density of the current setup for less than an SRAM equivalent and are 70ns rated, sufficiently fast enough for the Minimig. Not so easy to install though :-(

Cheers,

Valentin  

[basman74]

Belial6 wrote:
@amigadave


Who would be interested in spending $150 now on a MiniMig 1k, knowing that there will be a better model available a year from now?

I definitly am.  I have no problem spending a $150 today, so that production gets started.

If someone is willing to do a 'pilot run' of 100 units (and 100 people commited to purchase :-P ), then I believe this is what it will take to get the process started. This would allow for further 'tweaking' of the design (if necessary) or hacking on 'improvements' etc.

Also, I for one would be happy to put my hand up to organise such a pilot run . Unfortunately, I am committed to my current (work) projects for another week or so, so I would not be able to do anything until then.

Probably at some point before then, we might receive an update from the original poster of this thread. ;-)

Cheers,

Valentin  

[basman74]

@Xenepp,

The bad news, it looks like I'll not have the time to do a run of complete PCBs.

Sorry to hear that, I wanted to acquire a ready-made PCB for 'tinkering'.

Guess I will be having another look at building my own minimig board...


Valentin

[ Edit: My knowledge of PIC and 68k architectures are very limited, so this might take a while.. :-) ]