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Patches and discussion for Ensoniq VFX family

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Cases for EEPROMs

Cases for EEPROMs

2011-06-09 by john bluhm

That's interesting, but what do they charge to make the injuction mold? I used to work for
a keyboard company, and they wanted to make their own plastic keys (we were using
ones imported from Italy at the time). We contacted a number of injection mold companies,
in Milwaukee, and they all wanted $75,000 to $80,000 dollars to make the molds, and that
was in 1980!
I'm just wondering.

Re: [Ensoniq-VFX-SD] Cases for EEPROMs

2011-06-09 by jammie.emma@blueyonder.co.uk

link51 is a small batch firm they make molds for al sourts of boxes to containers to childrens toys in small all large quantities
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----- Original Message -----
From: john bluhm
Sent: Thursday, June 09, 2011 3:36 PM
Subject: [Ensoniq-VFX-SD] Cases for EEPROMs

That's interesting, but what do they charge to make the injuction mold? I used to work for
a keyboard company, and they wanted to make their own plastic keys (we were using
ones imported from Italy at the time). We contacted a number of injection mold companies,
in Milwaukee, and they all wanted $75,000 to $80,000 dollars to make the molds, and that
was in 1980!
I'm just wondering.


No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.901 / Virus Database: 271.1.1/3688 - Release Date: 06/08/11 07:34:00

Re: [Ensoniq-VFX-SD] Cases for EEPROMs

2011-06-09 by ron amundson

Injection mold design and fabrication has dropped multifold over the years... 
short of uber high volume complex shapes where in a multi-cavity tool steel mold 
with multiple side pulls is required. Today, its often cheaper to injection mold 
enclosures in low volume rather than paying for secondary machining ops on COTS 
enclosures, albeit complexity is the driving force. I've had injection molds 
made for under $5K, albeit they were aluminum, they shared a MUDset and did not 
require any side pulls. http://www.dme.net/dme/products/quick_change_sys.html
 
The VFX cartridge case was injection molded as the volumes were high, so labor 
was a concern, as likewise would be the cost of any type of fastener. Ie, its a 
snap together case, where in the board standoffs are slightly offset, such that 
they locate and secure the board and at the same time serve to hold the case 
halves together. I'm thinking the 2 case halves would be pretty cheap if one 
dispensed with the snap together assembly and used mounting screws. It might 
even be possible to thermoform the case halves for even less NRE.




________________________________
Show quoted textHide quoted text
From: john bluhm <falconjohnney@...>
To: Ensoniq-VFX-SD@yahoogroups.com
Sent: Thu, June 9, 2011 9:36:08 AM
Subject: [Ensoniq-VFX-SD] Cases for EEPROMs

  


That's interesting, but what do they charge to make the injuction mold? I used 
to work for
a keyboard company, and they wanted to make their own plastic keys (we were 
using 

ones imported from Italy at the time). We contacted a number of injection mold 
companies,
in Milwaukee, and they all wanted $75,000 to $80,000 dollars to make the molds, 
and that
was in 1980!
 
I'm just wondering.

Re: [Ensoniq-VFX-SD] Cases for EEPROMs

2011-06-10 by peter@pcains.freeserve.co.uk

If only a few cases are needed for personal use, then DIY ingenuity will provide. Several things spring to mind
1) Cut from 1/8" sheet acrylic or polyethlene in 2 superglued halves. Glue or screw. Wood is possible.
2)Make a modelling plaster mould of a vfx cart. Cut into halves. Hand carve plaster buttresses for screws to be drilled
later. Use fibreglass matt and resin to form the casings in the mould.


Re: [Ensoniq-VFX-SD] Cases for EEPROMs

2011-06-10 by jammie.emma@blueyonder.co.uk

could do a slight desidgn modification where you have 2 sets holes made in each side top and botom and have a metal strip that spans the holes with counter sunk screws to hold together
with with the original pc holders as are
this way you could just have schells made once the mold is made its just a matter of remaking the schells when demand is needed
i payed a little more for my molds between £40-60 for the mold but like i said you pass this on to the customers in the selling of the device that is if you get enough demand
also them eproms you could use a flash card system when you could have a compactflash card socket out of the top of the card and a fpga design where you could take the eprom signal from the vfx and ytransfer it and wright to a compact flash card or a swithching eprom circuit which has the ability to adress certain size blocks
its been done with the sy85 where a 1mb eprom was used to adress 64k blocks so that it could switch between
Original Message -----
Show quoted textHide quoted text
Sent: Thursday, June 09, 2011 4:33 PM
Subject: Re: [Ensoniq-VFX-SD] Cases for EEPROMs


Injection mold design and fabrication has dropped multifold over the years... short of uber high volume complex shapes where in a multi-cavity tool steel mold with multiple side pulls is required. Today, its often cheaper to injection mold enclosures in low volume rather than paying for secondary machining ops on COTS enclosures, albeit complexity is the driving force. I've had injection molds made for under $5K, albeit they were aluminum, they shared a MUDset and did not require any side pulls. http://www.dme.net/dme/products/quick_change_sys.html
The VFX cartridge case was injection molded as the volumes were high, so labor was a concern, as likewise would be the cost of any type of fastener. Ie, its a snap together case, where in the board standoffs are slightly offset, such that they locate and secure the board and at the same time serve to hold the case halves together. I'm thinking the 2 case halves would be pretty cheap if one dispensed with the snap together assembly and used mounting screws. It might even be possible to thermoform the case halves for even less NRE.


From: john bluhm
To: Ensoniq-VFX-SD@yahoogroups.com
Sent: Thu, June 9, 2011 9:36:08 AM
Subject: [Ensoniq-VFX-SD] Cases for EEPROMs



That's interesting, but what do they charge to make the injuction mold? I used to work for
a keyboard company, and they wanted to make their own plastic keys (we were using
ones imported from Italy at the time). We contacted a number of injection mold companies,
in Milwaukee, and they all wanted $75,000 to $80,000 dollars to make the molds, and that
was in 1980!
I'm just wondering.



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.901 / Virus Database: 271.1.1/3690 - Release Date: 06/09/11 07:34:00

Re: [Ensoniq-VFX-SD] Cases for EEPROMs

2011-06-10 by Jon Carroll

There was a EEPROM for the VFX that was two seperate banks and a switch to 
flip between them...
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----- Original Message ----- 
From: <jammie.emma@...>
To: <Ensoniq-VFX-SD@yahoogroups.com>
Sent: Friday, June 10, 2011 9:54 AM
Subject: Re: [Ensoniq-VFX-SD] Cases for EEPROMs
its been done with the sy85 where a 1mb eprom was used to adress 64k blocks 
so that it could switch between

Re: [Ensoniq-VFX-SD] Cases for EEPROMs

2011-06-10 by jammie.emma@blueyonder.co.uk

yes there was and you can get eeproms with a little bit more cicuitry to address more banks head over to the sweet sixteen project for sy85 he has 16 64k banks on a 1mb eeprom
----- Original Message -----
Show quoted textHide quoted text
Sent: Friday, June 10, 2011 10:00 PM
Subject: Re: [Ensoniq-VFX-SD] Cases for EEPROMs

There was a EEPROM for the VFX that was two seperate banks and a switch to
flip between them...

----- Original Message -----
From: <jammie.emma@blueyonder.co.uk>
To: <Ensoniq-VFX-SD@yahoogroups.com>
Sent: Friday, June 10, 2011 9:54 AM
Subject: Re: [Ensoniq-VFX-SD] Cases for EEPROMs
its been done with the sy85 where a 1mb eprom was used to adress 64k blocks
so that it could switch between



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.901 / Virus Database: 271.1.1/3692 - Release Date: 06/10/11 07:34:00

Re: [Ensoniq-VFX-SD] Cases for EEPROMs

2011-06-10 by Jon Carroll

yes, but i dont have the skills to do something like that yet... cloning the 
original is about my speed.
Show quoted textHide quoted text
----- Original Message ----- 
From: <jammie.emma@...>
To: <Ensoniq-VFX-SD@yahoogroups.com>
Sent: Friday, June 10, 2011 2:12 PM
Subject: Re: [Ensoniq-VFX-SD] Cases for EEPROMs


yes there was and you can get eeproms with a little bit more cicuitry to 
address more banks head over to the sweet sixteen project for sy85 he has 16 
64k banks on a 1mb eeprom
  ----- Original Message ----- 
  From: Jon Carroll
  To: Ensoniq-VFX-SD@yahoogroups.com
  Sent: Friday, June 10, 2011 10:00 PM
  Subject: Re: [Ensoniq-VFX-SD] Cases for EEPROMs



  There was a EEPROM for the VFX that was two seperate banks and a switch to
  flip between them...

  ----- Original Message ----- 
  From: <jammie.emma@...>
  To: <Ensoniq-VFX-SD@yahoogroups.com>
  Sent: Friday, June 10, 2011 9:54 AM
  Subject: Re: [Ensoniq-VFX-SD] Cases for EEPROMs
  its been done with the sy85 where a 1mb eprom was used to adress 64k 
blocks
  so that it could switch between







------------------------------------------------------------------------------



  No virus found in this incoming message.
  Checked by AVG - www.avg.com
  Version: 9.0.901 / Virus Database: 271.1.1/3692 - Release Date: 06/10/11 
07:34:00

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