[Dprglist] Idea - Line following practice courses

Mon Nov 19 13:38:54 PST 2018

My original response is stuck in moderator approval - here's a version
intended to skate in under the attachment size limit...

Nice find at FedEx - would be cool to compare prices..

Note that source files for club courses, as well as instructions we used to
print can be found in our GitHub repo:

https://github.com/dprg/Contests/tree/master/Line%20Following

In terms of creating smaller sample courses.  I like Power Point, but then
you'd need to recreate each of the core elements.

If you start with the GitHub repo, you can easily manipulate the SVG source
files using Inkscape. The club course files already have versions of all
the key elements already snapped to a grid.  That makes it relatively easy
to copy / paste and rotate as you wish.  Plus, Inkscape makes it easy to
export in whatever ppi and format that you need.

Another alternative is the course creator tool that Ron Grant started in
Processing.  It's very cool and quite usable. Ping me or Ron if
you're interested...

For a small version of the challenge course, I've attached source file and
a small screenshot for the 7x9 practice version I made and use at my house.

[image: image.png]

Alternatively, feel free to use the attached 'airplane friendly' version.
It takes just $42 to print via stickers & banners, then you have to cut one
strip in two.  At that point, you have a course with all the key elements
of the challenge course, but in a form factor that fit's into a 2 foot
roll, which easily fits in a checked luggage bag...  And, as the course is
already in strips, you can overlay the strips to combine elements and
explore 'corner' cases...

[image: image.png]

I won't make it to RBNO this week, but look forward to catching up after
Thanksgiving...

- Enjoy!
Carl

On Mon, Nov 19, 2018 at 1:40 PM jsampson--- via DPRGlist <
dprglist at lists.dprg.org> wrote:

> Hi Clay,
>
> Just a few thoughts.
>
> I don't know how the current maze is constructed. Maybe you have
> considered all of what I have to say...
>
> The large sheets of paper are easiest transported by rolling them up. But
> then it may be difficult to get them to lay down flat. You could glue them
> to poster board. But then the size gets unwieldy (assuming you go with the
> 36" x 48").
>
> Assuming the prints will be white paper, consider how long it will take to
> get them dirty enough that they are not usable.You really can't clean the
> paper with a damp cloth.
>
> Also check what the printing technology is. If it is ink jet then check to
> see if it is waterproof. A small drop of water can quickly mess up an ink
> jet print. Maybe spray it with a drafting spray matte. Or a spray
> polyurethane. But check a sample before commiting to a full size project
> because those may mess up the print also. If they are sprayed with a
> coating then maybe they will be washable.
>
> But in general it seems like a good idea.
>
> Jeff Sampson
>
>
> Message: 1
> Date: Mon, 19 Nov 2018 17:49:48 +0000
> From: Clay Timmons <clay-timmons at outlook.com>
> To: "dprglist at dprg.org" <dprglist at dprg.org>
> Subject: [Dprglist] Idea - Line following practice courses
> Message-ID:
>     <
> CY1PR15MB07951BC915D79A1B3067AC0489D80 at CY1PR15MB0795.namprd15.prod.outlook.com
> >
>
> Content-Type: text/plain; charset="us-ascii"
>
>
> I was at FedEx dropping off a package and I noticed they have a large
> format printer.    Aha!  An idea popped into my brain.  Print a small scale
> test course on the wide paper.  The prices are very reasonable.
>
>
> I've been working on the line following courses and have tried a couple
> options for testing at home.    First I make some test courses out of white
> posterboard and black electrical tape.    I found that electrical tape is
> difficult to get to nice 6" radius curve and it is very shiny and can
> easily have bright glare from reflected background lights.    I also
> borrowed the official club course.    While this is the best for testing it
> had  a couple drawbacks.  The challenge course is very large and fun to fit
> that  large cardboard tube into my tiny car.  I also only had one place in
> my house where I could get the 7'x13' course on a wood floor.
>
> FedEx, Staples,  Office Depot all  offer  "blueprints" /  "architectural"
> prints in color or black and white in standard sizes including 24"x26" and
> 36" x 48".    Here are some links.
>
> Staples
> https://www.staples.com/sbd/content/copyandprint/engineering-prints.html
> Office Depot
> https://www.officedepot.com/configurator/pod/#/product/blueprints<
> https://www.officedepot.com/configurator/pod/>
>
>
>
> I plan to design and print some test course on paper.  My idea is not to
> reproduce the exact DPRG course layout but to print smaller simplified
> versions for testing purposes.
>
> For the beginner / novice  I'm thinking a simple oval.    If your robot
> can follow a straight line and a curve with the 6" radius it "should" be
> able to complete the DPRG course.
>
>
> [cid:image001.png at 01D47FFC.2F30F210]
>
>
> For the advanced course I came up with this layout which has all the
> "elements" of complexity as described in the DPRG line following rules.
> Offset,  90 degree,  Gap S,  6" Gap,  Notch.
>
> [cid:image002.png at 01D47FFD.47D9DA60]
> I'm working on my idea for a simplified version of the challenge course.
> The challenge course has many complexities and it will be tricky to get
> them all into a 36" x 48" course.  For me personally I know where my robot
> struggles so that is what I really want in a test course.
>
>
>
> I just wanted to share my thoughts for any feedback.  I plan to be at RBNO
> tomorrow evening and would love to have some help on a working out a
> simplified challenge test course.
> I could also use some help laying out the course to get a PDF file for
> printing.    I used PowerPoint to cobble together my ideas but really need
> a drawing package like inkscape or adobe.  I have an artist friend who is a
> whiz with adobe and could knock this out easily but if anyone in the club
> can help with this let me know.
>
>
> Cheers,
>
> -Clay Timmons-
>
> _______________________________________________
> DPRGlist mailing list
> DPRGlist at lists.dprg.org
> http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.dprg.org/pipermail/dprglist-dprg.org/attachments/20181119/53fac6ad/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 109549 bytes
Desc: not available
URL: <http://lists.dprg.org/pipermail/dprglist-dprg.org/attachments/20181119/53fac6ad/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 79718 bytes
Desc: not available
URL: <http://lists.dprg.org/pipermail/dprglist-dprg.org/attachments/20181119/53fac6ad/attachment-0003.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Airline Friendly Course v4.svg
Type: image/svg+xml
Size: 207794 bytes
Desc: not available
URL: <http://lists.dprg.org/pipermail/dprglist-dprg.org/attachments/20181119/53fac6ad/attachment-0002.svg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Challenge_course_layout-version_5 - 7x9 -co.svg
Type: image/svg+xml
Size: 201026 bytes
Desc: not available
URL: <http://lists.dprg.org/pipermail/dprglist-dprg.org/attachments/20181119/53fac6ad/attachment-0003.svg>