RE: CMD HD mechanism failure?

Yes, the HD-100 does use a standard 3.5” drive with a 10 cm actual width, but the SCSI2SD is only 9 cm across. Also, the SCSI2SD doesn’t have any side mounting holes.

 

It’s been a looooong time since I had my HD-100 assembled but I recall that there was some weird arrangement of spacers to mount the SCSI HD.  Unfortunately I don’t have a 3D printer.

I do see that they do sell a 3.5” adapter on the Inertial Computing site… maybe that coupled with some spacers could do the trick.

 

/Raj

 

From: Justin <shadow_at_darksideresearch.com> 
Sent: Sunday, January 31, 2021 6:41 PM
To: cbm-hackers_at_musoftware.de hackers <cbm-hackers_at_musoftware.de>
Subject: Re: CMD HD mechanism failure?

 

There are all kinds of 3d printable brackets you can use to mount them in standard drive bays.  Doesn’t the CMD-HD use a standard 3.5” drive?  IIRC I mounted mine in a 5.25” slot behind a drive bezel for a Zip drive in my 9600 so that I could access the SD card slot without cracking the case.

 

Justin





On Jan 31, 2021, at 16:54, Raj Wurttemberg <rajaw_at_c64.us <mailto:rajaw_at_c64.us> > wrote:

 

Now if I could only find a mount for the SCSI2SD card in the CMD HD-100.  The CMD HD-100 is only 5 inches (12.5 cm) across. 

 

/Raj

 

From: Justin Cordesman <shadow_at_darksideresearch.com <mailto:shadow_at_darksideresearch.com> > 
Sent: Saturday, January 30, 2021 6:00 PM
To: cbm-hackers_at_musoftware.de <mailto:cbm-hackers_at_musoftware.de> 
Subject: Re: CMD HD mechanism failure?

 

Two things:

 

1. Try turning the drive upside down if you need to recover anything from it. Sometimes if they are having trouble getting to target speed switching the load to the top bearing gets you there.

 

2. https://store.inertialcomputing.com/SCSI2SD-s/100.htm

 

I use one on my Powermac 9600 since it sits on the edge with the last support for the 400k floppies but has modern Ethernet support. There are newer ones since mine with higher performance. Use good media, genuine sandisk extreme or the like (there are a LOT of forgeries of SD and microSD media so shop carefully). Write endurance and I/O performance, especially random writes, is very different as you go up the quality scale.

Justin