HP-85A tape drive conversion

Dave dfnr2 at yahoo.com
Tue Mar 31 14:35:50 CDT 2015

I'm not good with mills and lathes, but here in Dallas, there is a local Makerspace that does have these tools, and people willing to teach neophytes how to use them.  It may be worth checking to see if you have some such local resource.
I've used a service called Emachineshop.com to make parts in the past, and while they are not exactly cheap, the prices are reasonable in quantities.  They have a piece of software that you can download, design the part, choose a material, click a button, and get a quote.  Another click, a credit card payment, 2-3 weeks, and you have the part. 
I'm sure there are other machine shops out there that would take a solidworks file.  Perhaps someone with some Solidworks savvy could produce a design file, and we could organize a group buy?  I could go for at least 10 parts.

     On Tuesday, March 31, 2015 2:20 PM, "Smith, Wayne" <Wayne.Smith at warnerbros.com> wrote:

 > Date: Tue, 31 Mar 2015 06:20:04 -0500
> From: "Jay West" <jwest at classiccmp.org>
> So. two questions: What SHOULD the outer diameter of a good capstan roller
> be on that drive, and does anyone have other suggestions for how to make the
> capstan roller "taller"?

I would try gluing an extender piece on the end of the existing capstan roller, perhaps
using wood which is easy to shape.  Once you wrap it with a piece or two of heat
shrink tubing, I would think that it would all stay in place.


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