Re: [multimachine] Re: Drawing progress update and questions.
- Thanks DennisAlignment would still be a problem since this will have to be a 1 chuck system if it is going to be cheap. What I am trying to avoid is the cost of extra machines, vises and chucks. I think a $300 machine that can do the Mazak piece is a very worthy goal.I have attached a draft of the first 6 pages. They are not in the format for Instructables as they should be.
- It's surprising how similar designs can come from different sources.
My bed is also going to be cement based, but I'm using two I-beams for the ways. It appears that the round ways have a decent distance between them as does my design and the leadscrew is run through the center of the machine instead of down one side. I've taken my design tips from the giant yet portable machines as they are always "too slender" for high quality work, yet the designers have figured out ways to make machines that are "too light" work with excellent tolerances.
I imagine something like a full length boring bar could be used to align the ways in addition to a few identical lengths of bar stock.
I'm also going to see if I still have plans for an "incidence" gauge and see if it can be adapted as an alignment device.
--- In email@example.com, Pat Delany <rigmatch@...> wrote:
> Thanks Dennis
> Alignment would still be a problem since this will have to be a 1 chuck system
> if it is going to be cheap. What I am trying to avoid is the cost of extra
> machines, vises and chucks. I think a $300 machine that can do the Mazak piece
> is a very worthy goal.
> I have attached a draft of the first 6 pages. They are not in the format for
> Instructables as they should be.
> From: Dennis <nojoeco@...>
> To: firstname.lastname@example.org
> Sent: Wed, April 6, 2011 12:25:15 PM
> Subject: [multimachine] Re: Drawing progress update and questions.
> Ah! thanks for answering my questions.
> Now I know in my head what I'm looking at.
> I recently watched the Mazak video and was very impressed with the two headstock
> system. I have had many occaisions to need to do similar two sided work and had
> to make fixtures to insure that everything lined up when the part was flipped.
> --- In email@example.com, Pat Delany <rigmatch@> wrote:
> > This is wonderful! Dennis
> > I wish I had never started with Sketchup but when I did, $5 was pretty
> > around here and free was great! I just bought Alibre for $100 but I cannot
> > presently afford the $150 tutorial videos that I REALLY need to make it work.
> > Let me try to answer your questions.
> > This is about a Yeomans style concrete lathe that can (if built with a wide and
> > low carriage) have a powered aux. spindle added. As such it should be able to
> > turn out the Mazak workpiece (links). It is a combination of everything we have
> > learned about the original MM combined with Yeomans technology. It should be
> > cheaper to build than a MM because it will not require engine blocks or the
> > large pieces of plate.
> > It could also be built as a large (even CNC) milling machine.
> > I plan to heavily publicize it (Wired, Make, Instructables etc.) so I would
> > to have the drawings look consistent.
> > (I am 75 and in poor health, This is probably my last shot at making the world
> > better place so I want this to be the best job I (WE) can do).
> > Turbocad drawings would be fine if I could send you Sketchup drawings of
> > that you could then redraw in Turbocad with dimensions added.
> > ________________________________
> > From: Dennis <nojoeco@>
> > To: firstname.lastname@example.org
> > Sent: Wed, April 6, 2011 9:07:43 AM
> > Subject: [multimachine] Drawing progress update and questions.
> > An update on my progress and a few questions.
> > Firstly google sketchup is driving me crazy, but I will be able to use it
> > eventually. Secondly turbo cad does work well in combination with sketchup so
> > I'll probably do things in one and then tranfer over as I can. The reason for
> > that is so that anyone can freely view the entire planset with a free
> > downloadable.
> > Now for the questions.
> > 1. Drawings are needed for the build process of the machine from beginning to
> > end?
> > 2. We are discussing updates and processes for the one/two block lathe
> > horizontal milling type machine?
> > 3. Current work is towards a shop built carriage/saddle assembly and an aux
> > spindle?
> > 4. I can work from the first book and build photos?
> > I'm just making sure that somewhere along the line we didn't start designing an
> > all new machine.
> > Just for those curious about my machine progress. It's a different design as my
> > main need is vertical milling. Everything is from tubing and I-beams so far.
> > I'll be doing drawings of both machines at the same time, so I'm pretty much
> > available full time for drawings.