Date   

Re: Metal Spinning.

lance
 

Did you anneal it first?
Gotta use a light touch, too hard and it will tear.

Sent via SatComm II

On May 11, 2015, at 3:05 AM, 'John Dammeyer' johnd@autoartisans.com [SOUTHBENDLATHE] <SOUTHBENDLATHE@yahoogroups.com> wrote:

I did try spinning flashing aluminium but did something wrong and it disintegrated. Definitely some practice is in order.


Re: Metal Spinning.

John Dammeyer
 

The cone is made with tin foil spray glued onto a sheet of white paper to make the paper completely opaque. The white side is facing down. The cone has an angle of 18.5 degrees and 5” diameter.  The inside of the clear lamp lens is lined with white paper to give it a more translucent look than the sharp spectral image.  The top is still clear.

 

http://www.autoartisans.com/GardenLights/BollardLight.jpg

 

If you draw a line straight up from near the center you can see that it bounces back down into the fixture.    I think this is where it should probably taper with an exponential curve to bounce the light across the cone so it’s then bounced the second time in the downward direction past the edge of the lamp fixture.

 

I’ll try and draw this out in Alibre (Sorry Geomagic) and then use the lathe to cut the curve using steps that I can smooth off with a file.  The way some people cut ball ends on the end of handles.

 

Or just pick an angle and use the my 10L Taper attachment to create a tapered point to reflect across and then down when it hits the broad surface.

 

John Dammeyer

 

From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...]
Sent: May-11-15 11:05 AM
To: SOUTHBENDLATHE@...
Subject: RE: [SOUTHBENDLATHE] Re: Metal Spinning.

 



With completely separate R/G/B LEDs, you're definitely going to want some diffusion in the mix.  I'd been imagining separate colored LEDs all on the same physical substrate, where at least you'd have some expectation that the narrow beams from each color LED were pointed in the same direction.  But with discrete devices it'd be amazing, when bounced off of a highly specular diverging surface, if you didn't end up with little separately-projected R/G/B "spots" of light shining on your path.

 

I do like the roll, or brake-formed linear-reflector idea, though really you probably need two separate axes of curvature (think bar-of-soap shaped), so that you get spread along the path, as well as across the path.

 

Maybe it's as easy as a diagonally-aligned, inverted pyramid?

 

White paint will make for a good diffuser, and, reflect more light back to your path, than polished metal will.

 

Enjoying seeing where this goes!

Will

 

 

 





Re: Metal Spinning.

William Ray
 

With completely separate R/G/B LEDs, you're definitely going to want some diffusion in the mix.  I'd been imagining separate colored LEDs all on the same physical substrate, where at least you'd have some expectation that the narrow beams from each color LED were pointed in the same direction.  But with discrete devices it'd be amazing, when bounced off of a highly specular diverging surface, if you didn't end up with little separately-projected R/G/B "spots" of light shining on your path.

I do like the roll, or brake-formed linear-reflector idea, though really you probably need two separate axes of curvature (think bar-of-soap shaped), so that you get spread along the path, as well as across the path.

Maybe it's as easy as a diagonally-aligned, inverted pyramid?

White paint will make for a good diffuser, and, reflect more light back to your path, than polished metal will.

Enjoying seeing where this goes!
Will




Re: Metal Spinning.

m. allan noah
 

I suggest you try pointing the lights downward instead. you would only need a long thin cone then. And you might find less light lost into the sky that way, which is a concern for things like night vision and light pollution.

allan

On Mon, May 11, 2015 at 4:20 AM, 'John Dammeyer' johnd@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:
 

Couple more pictures of the LED panels without the lens assembly.

http://www.autoartisans.com/rings/WhiteLEDPanel.jpg

 

http://www.autoartisans.com/rings/WhiteLEDs.jpg

If all I want is path lights on either side of the fence then two rolled/formed metal pieces might be better than a round spun cone.

 

John Dammeyer

 




--
"well, I stand up next to a mountain- and I chop it down with the edge of my hand"


Re: Metal Spinning.

John Dammeyer
 

Couple more pictures of the LED panels without the lens assembly.

http://www.autoartisans.com/rings/WhiteLEDPanel.jpg

 

http://www.autoartisans.com/rings/WhiteLEDs.jpg

If all I want is path lights on either side of the fence then two rolled/formed metal pieces might be better than a round spun cone.

 

John Dammeyer

 


Re: Metal Spinning.

John Dammeyer
 

I think I have a handle on the basic shape to redirect the LED lights and it may well be suitable for metal spinning.

 

Here’s the challenge.  A round panel with RGBW LEDs that is 4” diameter in a 5” diameter plastic housing.  Unlike the common surface mount LEDs these have a very narrow angle of 10 to 15 degrees off axis.  So most of the light goes straight out the front of the LED.

 

The fixtures are going at the top of fence posts to act as bollard and path lights.  So the light going up has to be reflect downwards and outwards.

 

A little trigonometry tracing incident angles of light and I came out a basic angle of 18.5 degrees off horizontal (71.5 from vertical). 

 

Extrapolating that into a cone gives me cone with a 5” base and height of 0.836”  The point of the cone points down towards the fixture.

 

That should give a 3’ diameter circle of light 4’ from the ground.  Empirical tests with tin foil glued to a sheet of paper shaped into a cone works when the tip of the cone is 4” from the top of LEDs.

 

I suspect if I add an exponential shape near the center of the cone to receive light from the center LEDs and bounce it across and down I’ll get even more light where I want it.

 

The light fixtures are from this project:

http://www.autoartisans.com/rings/YVR-ORings.jpg

A close up of the fixtures is here:

http://www.autoartisans.com/rings/TestBoard.jpg

Clearly most of the light goes straight out and off axis it’s there and lights up the plastic but nothing like having coloured LEDs in your retinas for a while after looking at them straight on.

 

The fence posts every 6’ and bi-laws limit height to 4’.  A night they will be white and very dim.  Like far easy solar lights.  Until someone is sensed walking along the path at which point they will ripple on to bright white for the length of time to walk the path and then ripple back to dim or off behind them.

 

Of course on Valentine’s day they’d be red, St. Patrick’s Day Green, Easter pink and pale blue. Canada Day alternating red/white, Halloween orange and of course Christmas all the course twinkling.

 

I’ll try a cone first since I can easily make that from sheet metal with a point on the cone.  If I want to add some curve then metal spinning seems a better choice.  Alternatively a casting project with a decorative cap and the custom reflector.

 

More pictures as I get there.  I did try spinning flashing aluminium but did something wrong and it disintegrated.  Definitely some practice is in order.

 

John Dammeyer

 

 

 

From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...]
Sent: May-09-15 8:00 AM
To: SOUTHBENDLATHE@...
Subject: Re: [SOUTHBENDLATHE] Re: Metal Spinning.

 



Of course - the only thing that's particularly handy about the graphical construction, is that it's easy to fit and adjust to the shape one wants for a particular real object, at the workbench.  The conic-section math is a bit harder for most people to intuitively see how to adjust, to produce exactly what they want.



Re: MoI CAD tutorial in the FILES section

Gregg Eshelman
 

On 5/10/2015 9:13 PM, Nelson Collar nel2lar@yahoo.com [SOUTHBENDLATHE] wrote:


Gregg
My system is newer than XP and I do not have any such program. I wish I had.
Nelson Collar
It's built into Windows Explorer. It opens ZIP files like folders.


Re: MoI CAD tutorial in the FILES section

Nelson Collar
 

Gregg
My system is newer than XP and I do not have any such program. I wish I had.
Nelson Collar



From: "Gregg Eshelman g_alan_e@... [SOUTHBENDLATHE]"
To: SOUTHBENDLATHE@...
Sent: Sunday, May 10, 2015 10:22 PM
Subject: Re: [SOUTHBENDLATHE] MoI CAD tutorial in the FILES section

 
On 5/10/2015 6:54 PM, 'Jim B. ' btdtrf@... [SOUTHBENDLATHE] wrote:
>
>
> Many members may not have ZIP.
> PDF is easier for them

Windows XP and later have built in ZIP extraction.

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This email has been checked for viruses by Avast antivirus software.
http://www.avast.com




Re: MoI CAD tutorial in the FILES section

Nelson Collar
 

Jim and Kerry
Thank you for all you have done to enlighten us. I have three different cad programs and just find them difficult. Maybe doing the find all the info I can and figure it out during the trial maybe I can get a grip on it.
Thanks
Nelson Collar



From: "'Jim B. ' btdtrf@... [SOUTHBENDLATHE]"
To: "SOUTHBENDLATHE@..."
Sent: Sunday, May 10, 2015 8:54 PM
Subject: Re: [SOUTHBENDLATHE] MoI CAD tutorial in the FILES section

 
Many members may not have ZIP. 
PDF is easier for them

Jim B,

On May 10, 2015, at 8:46 PM, Kerri Duncan silverforgestudio@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:

 
Sorry guys- its THREE files- part one, two and three (thanks for unpacking the .zip Jim!) for the MoI tutorial!




Re: MoI CAD tutorial in the FILES section

Gregg Eshelman
 

On 5/10/2015 6:54 PM, 'Jim B. ' btdtrf@verizon.net [SOUTHBENDLATHE] wrote:


Many members may not have ZIP.
PDF is easier for them
Windows XP and later have built in ZIP extraction.


Re: MoI CAD tutorial in the FILES section

Jim B. <btdtrf@...>
 

Many members may not have ZIP. 
PDF is easier for them

Jim B,

On May 10, 2015, at 8:46 PM, Kerri Duncan silverforgestudio@... [SOUTHBENDLATHE] <SOUTHBENDLATHE@...> wrote:

 

Sorry guys- its THREE files- part one, two and three (thanks for unpacking the .zip Jim!) for the MoI tutorial!


Re: MoI CAD tutorial in the FILES section

Kerri Duncan <silverforgestudio@...>
 

Sorry guys- its THREE files- part one, two and three (thanks for unpacking the .zip Jim!) for the MoI tutorial!

 

From: "silverforgestudio@... [SOUTHBENDLATHE]"
To: SOUTHBENDLATHE@...
Sent: Sunday, May 10, 2015 8:43 PM
Subject: [SOUTHBENDLATHE] MoI CAD tutorial in the FILES section

 
For anyone who wants to try MoI (Moment of Inspiration) CAD program Jim has uploaded a .zip to the FILES section- Moi Tut_OvalCabRing

It introduces a few concepts to how to make rings and shapes as well as navigate a bit.

Hope it helps- I know it did me- and yes- its a small jewelry ring- but like anything else- size is a function of the project!

Kerri



MoI CAD tutorial in the FILES section

silverforgestudio@...
 

For anyone who wants to try MoI (Moment of Inspiration) CAD program Jim has uploaded a .zip to the FILES section- Moi Tut_OvalCabRing


It introduces a few concepts to how to make rings and shapes as well as navigate a bit.


Hope it helps- I know it did me- and yes- its a small jewelry ring- but like anything else- size is a function of the project!


Kerri


New file uploaded to SOUTHBENDLATHE

SOUTHBENDLATHE@...
 

Hello,


This email message is a notification to let you know that
a file has been uploaded to the Files area of the SOUTHBENDLATHE
group.


File : /CAD/Oval Cab Tutorial-3-MoI.pdf
Uploaded by : eeengineer1 <btdtrf@verizon.net>
Description : MOI Cad ring example 3


You can access this file at the URL:
https://groups.yahoo.com/neo/groups/SOUTHBENDLATHE/files/CAD/Oval%20Cab%20Tutorial-3-MoI.pdf


To learn more about file sharing for your group, please visit:
https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398


Regards,


eeengineer1 <btdtrf@verizon.net>


New file uploaded to SOUTHBENDLATHE

SOUTHBENDLATHE@...
 

Hello,


This email message is a notification to let you know that
a file has been uploaded to the Files area of the SOUTHBENDLATHE
group.


File : /CAD/Oval Cab Tutorial-2-MoI.pdf
Uploaded by : eeengineer1 <btdtrf@verizon.net>
Description : MOI cad ring example 2


You can access this file at the URL:
https://groups.yahoo.com/neo/groups/SOUTHBENDLATHE/files/CAD/Oval%20Cab%20Tutorial-2-MoI.pdf


To learn more about file sharing for your group, please visit:
https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398


Regards,


eeengineer1 <btdtrf@verizon.net>


New file uploaded to SOUTHBENDLATHE

SOUTHBENDLATHE@...
 

Hello,


This email message is a notification to let you know that
a file has been uploaded to the Files area of the SOUTHBENDLATHE
group.


File : /CAD/Oval Cab Tutorial-1-MoI.pdf
Uploaded by : eeengineer1 <btdtrf@verizon.net>
Description : MOI -Cad ring example 1


You can access this file at the URL:
https://groups.yahoo.com/neo/groups/SOUTHBENDLATHE/files/CAD/Oval%20Cab%20Tutorial-1-MoI.pdf


To learn more about file sharing for your group, please visit:
https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398


Regards,


eeengineer1 <btdtrf@verizon.net>


Re: Would like to post a file in the files section

Jim B. <btdtrf@...>
 

The “Files” section is open only to moderators.

You can forward the information to a moderator and he (or she if we had a she-moderator) will handle it.

 

Jim B. 


From: SOUTHBENDLATHE@... [mailto:SOUTHBENDLATHE@...]
Sent: Sunday, May 10, 2015 8:53 AM
To: SOUTHBENDLATHE@...
Subject: [SOUTHBENDLATHE] Would like to post a file in the files section

 

 

Hey guys- trying to post a file for anyone who would like to try MoI- Its a tutorial for doing a ring with a stone setting- small I know- but it covers a lot of the basics of how to communicate and navigate with MoI.

 

Went to the files section- did not see an "upload" so Im asking what is the procedure?

 

Kerri


Would like to post a file in the files section

silverforgestudio@...
 

Hey guys- trying to post a file for anyone who would like to try MoI- Its a tutorial for doing a ring with a stone setting- small I know- but it covers a lot of the basics of how to communicate and navigate with MoI.


Went to the files section- did not see an "upload" so Im asking what is the procedure?


Kerri


Re: Sketching Software

Kerri Duncan <silverforgestudio@...>
 

Sorry for the long-winded reply- Just figured if I'm gonna explain it- I will explain my thought process and the help I received as well!

I agree Nelson- MOI has a free trial and I would encourage anyone to try... I don't think anyone can learn CAD in a day for sure (Heck- Im going on 8+months of piddling with it due to time constraints!) but there are some pretty simple tutorials. Also I was given some very good pointers to adjust my thought process: <>

One thing that was a "go" for MOI is their simplistic interface- its not 10 toolbars or pallets or tool windows crowding the screen- and it exports in all the formats I needed.

I would say give it a try- the trail is free anyway- Do yourself a favor- go to the forums and spend a couple of days searching tutorials and getting a feel for how the user-group reacts and communicates- THEN download the trial- then all you have to concentrate on is learning and not understanding the tutorials figuring out the forums and searching for simple answers... I know it helped me to "learn" the community and WHERE the resources were BEFORE I got into it and needed help.


Here is a brief comment that is a bit of info for users of RHINO or anyone looking at MOI I lifted from another forum I belong to (Thanks Colwax!)
< ...it was NEVER created to be a direct "replacement" for Rhino.

MoI is still just a "one man show" with Michael Gibson doing everything from programing, bug hunting, creating scripts, problem solving for New Users & replying to questions on the MoI Forum.
For one man, that's a fairly amazing feat by anyone's standards.
Michael has been quite clear that MoI's main goal was to free up Designers from having to search across a myriad of Tools & not have to directly use a Command line.

Rhino itself was originally designed as a Plug-in for AutoCAD Users, hence why there's a Command line, so when Rhino became a "stand alone" program, Users wanted everything similar to AutoCAD.
Of course with those Users that now come from Rhino & NEED a Command line, MoI already has that capability as one of the many "hidden features" available.
The use of Scripts is also a big thing within MoI, with many available just for those wanting to do a specific task>>
Personally, I find MoI to be much easier to be creative within because I don't have to stop & think about "command line" names or their various setting entries.
MoI's simple Toolset is quite deceiving, it's actually very powerful.

MoI is designed to work with NURBS, same thing with Rhino, so ANYTHING you create in MoI is usable in Rhino...
If your intention is to be working directly with "mesh data" like STL, OBJ etc & NURBS, then you'd go straight into Rhino as that's capable of displaying & utilizing both.
MoI will eventually have those features, but if you're needing them now, then you'll be needing Rhino.>>



Mike Maynard has a few tutorials on his website for MOI and is active in following up on questions:


Hope this can help.

Kerri

 

From: "Nelson Collar nel2lar@... [SOUTHBENDLATHE]"
To: "SOUTHBENDLATHE@..."
Sent: Saturday, May 9, 2015 6:43 PM
Subject: Re: [SOUTHBENDLATHE] Sketching Software

 
Kerri
I want to learn to draw in cad but I find that most are over my head and hard to understand. When it comes to the illustration and how to's they leave me confused.
Nelson Collar

 




From: "Kerri Duncan silverforgestudio@... [SOUTHBENDLATHE]"
To: "SOUTHBENDLATHE@..."
Sent: Saturday, May 9, 2015 6:28 PM
Subject: Re: [SOUTHBENDLATHE] Sketching Software

 
Gary- depending on how far you are looking to take it and what your "learning style" is you may want to try MOI (Moment of Inspiration). It is an "artists' CAD" style program that has some really good functionality at a lower price point.

If you intend on moving on later to higher functionality program then MOI is a good start point as its creator helped design RhinoCAD and the Rhino NURBS suite of products... MOI has a lot of the parallels and same command functions in their UI as Rhino- so converting from one to another is more intuitive and less of a learning curve. Good user base and interactive forums as well.

Just my .02- Im not any sort of a power user or pro level... but for tinkering around and knowing I want to go further- it was an easier choice knowing my end-goal was Rhino... So making my transition to Rhino was a deciding factor.

Kerri

On 05/04/2015 01:46 PM, gmjar@... [SOUTHBENDLATHE] wrote:
 
I am looking for some simple drawing - drafting software that I can sketch up my projects prior to starting on them. Now I am using just normal 1/4x1/4 ruled paper and sometimes do not even use a straight edge. I would like to be able to think it out and draw it out a little neater. Free is always good but for something simple to use, I would be willing to pay for it.

Thanks for your thoughts
Gary
AE5VO
In the Beautiful Ozark Mountains








Re: Sketching Software

Nelson Collar
 

Kerri
I want to learn to draw in cad but I find that most are over my head and hard to understand. When it comes to the illustration and how to's they leave me confused.
Nelson Collar

 



From: "Kerri Duncan silverforgestudio@... [SOUTHBENDLATHE]"
To: "SOUTHBENDLATHE@..."
Sent: Saturday, May 9, 2015 6:28 PM
Subject: Re: [SOUTHBENDLATHE] Sketching Software

 
Gary- depending on how far you are looking to take it and what your "learning style" is you may want to try MOI (Moment of Inspiration). It is an "artists' CAD" style program that has some really good functionality at a lower price point.

If you intend on moving on later to higher functionality program then MOI is a good start point as its creator helped design RhinoCAD and the Rhino NURBS suite of products... MOI has a lot of the parallels and same command functions in their UI as Rhino- so converting from one to another is more intuitive and less of a learning curve. Good user base and interactive forums as well.

Just my .02- Im not any sort of a power user or pro level... but for tinkering around and knowing I want to go further- it was an easier choice knowing my end-goal was Rhino... So making my transition to Rhino was a deciding factor.

Kerri

On 05/04/2015 01:46 PM, gmjar@... [SOUTHBENDLATHE] wrote:
 
I am looking for some simple drawing - drafting software that I can sketch up my projects prior to starting on them. Now I am using just normal 1/4x1/4 ruled paper and sometimes do not even use a straight edge. I would like to be able to think it out and draw it out a little neater. Free is always good but for something simple to use, I would be willing to pay for it.

Thanks for your thoughts
Gary
AE5VO
In the Beautiful Ozark Mountains





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