English Amiga Board


Go Back   English Amiga Board > Support > support.Hardware > Hardware mods

 
 
Thread Tools
Old 13 September 2018, 21:37   #401
SukkoPera
Mighty Pirate

 
Join Date: Dec 2017
Location: Torino, Italy
Age: 38
Posts: 22
Actually I have reported two more working chips...
SukkoPera is offline  
Old 17 September 2018, 15:47   #402
patzik
Registered User

 
Join Date: Sep 2017
Location: Haarlem/Netherlands
Posts: 10
I just found this project, and would like to order some boards.
Looked at the gerber and see they are joined in a way unknow to me.
How do you seperate the 2 boards? Why not use breakout tabs?
patzik is offline  
Old 17 September 2018, 16:02   #403
Chain
A-Collector, repairments

Chain's Avatar
 
Join Date: Jul 2001
Location: Czech Rep.
Age: 44
Posts: 1,525
Send a message via ICQ to Chain


Chain is offline  
Old 17 September 2018, 16:38   #404
demolition
Unregistered User
demolition's Avatar
 
Join Date: Sep 2012
Location: Copenhagen / DK
Age: 38
Posts: 3,736
demolition is offline  
Old 17 September 2018, 17:44   #405
patzik
Registered User

 
Join Date: Sep 2017
Location: Haarlem/Netherlands
Posts: 10
Is it possible to get the gerbers for the boards seperate? So I can panelize them with other boards? And join them with breakout tabs.
patzik is offline  
Old 17 September 2018, 18:25   #406
katarakt
Registered User

 
Join Date: Jul 2017
Location: Germany
Posts: 71
I've used this:



Take care that you are using a circular saw blade (is this called so?) which is not too thick!! Measure! Use one with many teeth !
katarakt is offline  
Old 18 September 2018, 11:20   #407
maeltar
Registered User

 
Join Date: Sep 2018
Location: Wellesbourne
Posts: 3
Big grin

Got 10 of the PCB's made by jlcpcb, $2 plus postage, came to about $20


Split the Gary side away with a hacksaw and cleaned the edge with a file..

Got the memory on and 2 100uF caps, plugged in and working.. Happy Days..
maeltar is offline  
Old 19 September 2018, 16:13   #408
patzik
Registered User

 
Join Date: Sep 2017
Location: Haarlem/Netherlands
Posts: 10
Here's the way I solved this...
Attached Thumbnails
Click image for larger version

Name:	Untitled_Combined_Top.png
Views:	80
Size:	539.8 KB
ID:	59871  
Attached Files
File Type: zip A501b6 Gerber Mousebites.zip (366.1 KB, 23 views)
patzik is offline  
Old 19 September 2018, 18:28   #409
katarakt
Registered User

 
Join Date: Jul 2017
Location: Germany
Posts: 71
This is geat patzik! If you remove the jumper traces so it all can be jumpered this would be your next step to make it better
katarakt is offline  
Old 19 September 2018, 22:59   #410
patzik
Registered User

 
Join Date: Sep 2017
Location: Haarlem/Netherlands
Posts: 10
Jumper version on request...

I deleted the jumper connections, also the clock jumper, and the solder jumper on the backside. I this the way you want it?
Attached Thumbnails
Click image for larger version

Name:	Untitled_Combined_Top.png
Views:	53
Size:	539.7 KB
ID:	59892   Click image for larger version

Name:	Untitled_Combined_Bottom.png
Views:	49
Size:	488.1 KB
ID:	59893  
Attached Files
File Type: zip A501b6 Gerber Mousebites Jumpers.zip (365.6 KB, 18 views)
patzik is offline  
Old 20 September 2018, 21:12   #411
katarakt
Registered User

 
Join Date: Jul 2017
Location: Germany
Posts: 71
Excellent, i've some more improvements. Goal is the perfect version which can be pinned to page one in this topic. I'll send you pm.
katarakt is offline  
Old 21 September 2018, 16:53   #412
Clamshell
Registered User
 
Join Date: Nov 2017
Location: CGN
Posts: 13
Hey katarakt, sounds interesting. Go forward
Clamshell is offline  
Old 21 September 2018, 18:18   #413
majinga
Registered User

majinga's Avatar
 
Join Date: Aug 2018
Location: Italy
Posts: 15
JP4 on the GA still have the jumper trace.

To be honest, there is no need to remove the traces on RASU1, RASU3 and RASU4.
But have a trace where is supposed to be a jumper can be a little confusing.

Anyway, great job, everyone!
majinga is offline  
Old 21 September 2018, 19:44   #414
katarakt
Registered User

 
Join Date: Jul 2017
Location: Germany
Posts: 71
Oh, yes, JP4 trace has to be removed !!

I've sent him my ideas to make this perfect, have posted these some months ago here in this thread but sadly no one want to do this. Just simple things for the eagle guys. Maybe patzik does the final version

Mainly, it's for the community here. At the moment i have enough ramexpansions but maybe i'll do another collective order with "the final" one if someone makes the gerber

Last edited by katarakt; 21 September 2018 at 19:50.
katarakt is offline  
Old 24 September 2018, 01:03   #415
Chain
A-Collector, repairments

Chain's Avatar
 
Join Date: Jul 2001
Location: Czech Rep.
Age: 44
Posts: 1,525
Send a message via ICQ to Chain
Finally my proof of concept, from uploading free gerbers to make something usable, under 5 bucks



P.S. Extensivelly tested with Hired guns and Settlers up to 7hrs
Chain is offline  
Old 25 September 2018, 00:01   #416
patzik
Registered User

 
Join Date: Sep 2017
Location: Haarlem/Netherlands
Posts: 10
I'll have a look at it when I have some time, not sure if I understand all you wanted in the PM, so I'll get back to you on that...

Can't find JP4, where is that? (edit, never mind.... found it)

What do you guys think about replacing the jumpers with solder pads? This way you can configure it with a 'blob' of solder, and change it if necessary (which I don't think will be needed often, if at all...)

Also I don't want to change the design completely, how, do the original designers of this project look at these changes?

Last edited by patzik; 25 September 2018 at 00:15.
patzik is offline  
Old 25 September 2018, 19:38   #417
katarakt
Registered User

 
Join Date: Jul 2017
Location: Germany
Posts: 71
Nooo, never ever solder pads! Stick with jumper, this will be fine. The orignal designers are happy with every changes who makes it better, so go for it
katarakt is offline  
Old 25 September 2018, 22:54   #418
Chain
A-Collector, repairments

Chain's Avatar
 
Join Date: Jul 2001
Location: Czech Rep.
Age: 44
Posts: 1,525
Send a message via ICQ to Chain
Im with him, please finish dat gerbers for maximal variability if possible, no cuts etc
Chain is offline  
Old 26 September 2018, 21:16   #419
katarakt
Registered User

 
Join Date: Jul 2017
Location: Germany
Posts: 71
Can someone please confirm:

If LED is soldered and ramexpansion is jumpered/switched to disabled the LED is off and on if ramexpansion is jumpered/switched enabled ? I haven't tested this yet and can test this earliest at the weekend.

Patzig is going to finish the final optimized version Thanks a lot in advance
katarakt is offline  
Old 26 September 2018, 22:26   #420
SukkoPera
Mighty Pirate

 
Join Date: Dec 2017
Location: Torino, Italy
Age: 38
Posts: 22
No, I think the led will always be on when the expansion is plugged in, regardless of whether it's enabled or not.
SukkoPera is offline  
 


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Modern Trapdoor RAM killed my A500 Silwuff New to Emulation or Amiga scene 10 15 August 2016 09:29
Homemade A500 trapdoor expansion? cabal Hardware mods 5 01 December 2014 21:44
WTB: two(2) A500 trapdoor slot covers papa_november MarketPlace 0 25 December 2008 09:17
Trapdoor expansion options for A500 Impakt support.Hardware 7 20 March 2008 06:05
A500 Plus Trapdoor Expansion TheCorfiot support.Hardware 10 14 March 2008 16:42

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +2. The time now is 17:23.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Page generated in 0.09251 seconds with 14 queries