John,
If you place a < at the start of a link and a > at the end it won't matter if there is wrap around of your link and it will load without an error!
Thanks Wonk
--- In gingery_machines@yahoogroups.com, "John Dammeyer" <johnd@...> wrote:
>
> Hi Rick,
>
> My shaft was machined well enough that I could extend the backing plate.
> But if it made any difference I don't know.
>
> I have accumulated a number of different 'pulley' patterns over the years
> that lend themselves well to this sort of project. The sprue placed on
> the back then gives me what I need. In this case I think I too removed a
> bit of metal all told.
>
> With the furnace and the ability (and enjoyment) of making patterns I have
> a tendency to look at everything as a nail. If you recall the expression:
> "When all you have is a hammer everything begins to look like a nail". So
> I tend to design and build patterns for things and then cast. Partly
> because $1.50 worth of propane is far less expensive compared with $20
> worth of 6061 plate. But it comes at the price of projects taking far
> longer than needed.
>
> That's why it took so long to mount the stepper motor on my mill knee.
> But when I finally did cast the motor mount plate it's true my costs were
> minimal if labour isn't factored into it. And now I can use an ELS to
> move the knee up and down. When I get around to having enough Tormach
> tooling to identify them with a tool # and Z offset I'll be able to lower
> the knee, insert a new tool and have the knee move automatically back up
> so the tip of the tool is a known distance from the work.
>
> Photos of the casting and the end product here:
> http://groups.yahoo.com/group/gingery_machines/photos/album/1572960416/pic
> /list
>
> But first, patterns to make for the X and Y axis motor and bearing mounts
> along with some way of cleanly moving the mill quill down with a motor.
> There will be lots more castings.
>
> John
>
> >
> > John,
> >
> > My design is almost identical to yours. I just didn't extend
> > the backing washer beyond the step on the spindle because the
> > metal was poorly machined in that area.
> >
> > On a related note, being able to turn out small, quick
> > castings like this sounds really great. Hopefully I will be
> > starting to build a little furnace soon based on CT2's
> > advice. It really bugged me to hog out so much metal to go
> > from 2" OD down to 1" OD.
> >
>
http://groups.yahoo.com/group/gingery_machines/app/peoplemap/view/map
No comments:
Post a Comment