Re: [CAD_CAM_EDM_DRO] FW: supertech failure analysis info

Maybe a serious letter from your attorney to Supertech will get some
results.

There is an implied warranty that if you buy something that is
advertized to do a certain job and it doesn't that is a breach and is
actionable.

Hugh



lurch9 wrote:

> So, I laid out a line, with coordinates 1.6, 1.6 and
> 1.6,-1.6, -1.6,-1.6, -1.6,1.6, and 1.6,1.6.
>
> Then I used the 'fill' command to fill it at .031 increments. Making a
> pocket, you know? What happens, is it decrements all the way across on the
> x axis, decrements y by the fill increment amount, increments back across on
> x, and THEN the y-axis motor makes noise but nothing moves, then it
> decrements x ok, then decrements y, then increments x, then screams with no
> movement on y...etc.
>
> I'm not a software guy, but I'll make a semi-educated guess...as I've
> observed this, it appears that every Nth decrement-y move [where N is
> possibly a random variable, different for each session I mean] it's like
> only outputting one of the two quadrature signals to the motor.
>
> As a check, I manually laid out to machine the same pocket, in a spiral
> pattern:
> 1.6,1.6
> 1.6,-1.6
> -1.6,-1.6
> -1.6,1.6
> 1.6,1.6
> 1.57,1.57
> 1.57,-1.57
> -1.57,-1.57
> -1.57,1.57
> 1.57,1.57
> 1.54,1.54
> 1.54,-1.54
> and so on. I got the values entered all the way down to 1.39,1.39 etc, and
> it stepped right through the whole operation without a problem.
>
> All that having been said, I'm thinking this is somehow software-related.
> It fits with the prior history of occasionally [unpredictably] dropping
> steps or omitting entire moves and scrapping a workpiece.
>
> I'm going to have to find a solution one way or another...these issues have
> been there to varying degrees all along, and I'm getting up against the wall
> pretty hard here...as it stands now, until I can have confidence the machine
> will work as intended I can't take in any more orders for product...that's
> an issue. I'm in my 3rd year of being one of Super-Tech's unpaid beta
> testers...actually I'm a "paid" beta tester--as in "I paid over $3000 for
> the privilege."
>
> I've communicated this failure info to Super-Tech and how they respond,
> whether they will ontinue to support a product I haven't had satisfactory
> results with from day one, will determine whether I ever even consider
> buying another Super-Tech mill when this one wears out. Will keep everyone
> posted...
>
> Lurch
>
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@..., timg@...
> Moderator: pentam@... indigo_red@... davemucha@... [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
> Yahoo! Groups Links
>
>
>
>
>