<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">So are you saying make it all fit onto a single piece, ie for a tabletop setup, or use multiple pieces? Also, is the 6” spacing arbitrary or significant?<div><br><div dir="ltr">Chris</div><div dir="ltr"><br>On Jan 17, 2021, at 7:35 PM, Ralph Hipps via DPRGlist <dprglist@lists.dprg.org> wrote:<br><br></div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div>one new idea I had for a line maze is to use 6" spacing and blank masking tape on these white foldable cardboard presentation boards:</div><div><br></div><div><a href="https://www.staples.com/Elmer-s-White-Corrugated-Display-Board/product_302919?ci_src=17588969&ci_sku=302919&KPID=302919&cid=PS:GS:SBD:PLA:OF&gclid=Cj0KCQiAtqL-BRC0ARIsAF4K3WF_jGRi2HCteqMEhZIXlTuSshVE2DmYSLGaS1rP-mFlLDvPe_WZlggaAvr7EALw_wcB">https://www.staples.com/Elmer-s-White-Corrugated-Display-Board/product_302919?ci_src=17588969&ci_sku=302919&KPID=302919&cid=PS:GS:SBD:PLA:OF&gclid=Cj0KCQiAtqL-BRC0ARIsAF4K3WF_jGRi2HCteqMEhZIXlTuSshVE2DmYSLGaS1rP-mFlLDvPe_WZlggaAvr7EALw_wcB</a><br></div><div dir="ltr"><br></div>tape:</div><div dir="ltr"><br></div><div dir="ltr"><a href="https://smile.amazon.com/dp/B00DVAWA7M/?coliid=IFPL4VSVSO3LQ&colid=2NDVLRDKF1ORA&psc=0&ref_=lv_ov_lig_dp_it">https://smile.amazon.com/dp/B00DVAWA7M/?coliid=IFPL4VSVSO3LQ&colid=2NDVLRDKF1ORA&psc=0&ref_=lv_ov_lig_dp_it</a><br></div><div dir="ltr"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><span style="font-size:12.8px"><font face="arial, sans-serif"><br></font></span></div><div><font face="arial, sans-serif"><span style="font-size:12.8px">Ralph</span><br></font></div><br>>+<<br><div><span style="font-family:monospace,monospace"> | /\<br> |___/ \<br> [_@_] `<<br> O O O </span><span style="font-family:arial,helvetica,sans-serif"> </span><font face="arial, sans-serif">DL Robotics!<br></font></div><div><font face="arial, sans-serif">------------------------------------------------------------------------<br>In the twenty-first century, the robot will take the place</font></div><div><span style="font-family:arial,sans-serif">which slave labor occupied in ancient civilization.</span><br></div><div><font face="arial, sans-serif"> -- Nikola Tesla<br>------------------------------------------------------------------------<br></font><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Jan 17, 2021 at 2:04 PM <<a href="mailto:dprglist-request@lists.dprg.org">dprglist-request@lists.dprg.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Send DPRGlist mailing list submissions to<br>
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Today's Topics:<br>
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1. Re: Creating a line following course with tape on wood floor<br>
- safe for the floor? (Patrick R. Michaud)<br>
<br>
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<br>
Message: 1<br>
Date: Sun, 17 Jan 2021 10:23:57 -0600<br>
From: "Patrick R. Michaud" <<a href="mailto:pmichaud@pobox.com" target="_blank">pmichaud@pobox.com</a>><br>
To: Murray Altheim <<a href="mailto:murray18@altheim.com" target="_blank">murray18@altheim.com</a>><br>
Cc: <a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a><br>
Subject: Re: [Dprglist] Creating a line following course with tape on<br>
wood floor - safe for the floor?<br>
Message-ID: <<a href="mailto:20210117162357.GA16438@pmichaud.com" target="_blank">20210117162357.GA16438@pmichaud.com</a>><br>
Content-Type: text/plain; charset=us-ascii<br>
<br>
FWIW, my robotics team purchased a set of these foam tiles to use in their "pit area" at the World Championship in 2019:<br>
<br>
<a href="https://www.amazon.com/gp/product/B0752RB9X8" rel="noreferrer" target="_blank">https://www.amazon.com/gp/product/B0752RB9X8</a><br>
<br>
$86 for 48 sq-ft (12 tiles), or about $7 per tile.<br>
<br>
We got the "light bamboo" color. It improved the look of our pit area considerably, plus after 2-3 days of standing/walking on hard concrete floors it was really nice to have a cushion-y area to stand on. <br>
<br>
The underside is just the foam -- no printing -- so would likely work well for a robotics course. There are 3/8" and 1/2" thickness tiles available also, which are considerably less heavy and less bulky but don't stand up to heavy traffic as well. <br>
<br>
More importantly for our case, we were able to get them with Prime shipping (free!) in time for the event. We had looked for local sources of these -- there's even an outlet of sorts near Frisco that I visited, but they couldn't get them to us any faster/cheaper than Amazon.<br>
<br>
Pm<br>
<br>
<br>
On Sat, Jan 16, 2021 at 10:36:27AM +1300, Murray Altheim via DPRGlist wrote:<br>
> On 16/01/21 9:10 am, Patrick R. Michaud via DPRGlist wrote:<br>
> > [...] So to echo Karim, I always use gaffers tape in these floor-taping<br>
> > situations, but it's not a perfect solution. I'd be reluctant to tape<br>
> > my hardwood floor directly, but I also have other options (foam tiles<br>
> > etc) that I can use to create a robot playing surface.<br>
> <br>
> An expensive fix to a damaged wood floor due to tape seems like an<br>
> avoidable situation.<br>
> <br>
> On the subject of foam tiles, I just checked our local hardware store and<br>
> they sell black, interlocking 24" square foam tiles for about NZ$9/US$6<br>
> per square meter. It looks like KMart sells a four-pack of them in four<br>
> colors for $12, a four pack of the black ones for $11. You pay extra for<br>
> color.<br>
> <br>
> In the US, where everything is more available, I checked <a href="http://foamtiles.com" rel="noreferrer" target="_blank">foamtiles.com</a><br>
> (flooring geeks!) in Meza, AZ, and they sell tiles with rubber tops,<br>
> carpet tops, wood patterns, and martial arts mats (e.g., 2x2' US$7.56,<br>
> 3'x3' US17 per tile). Male or female beveled edge, beveled corners, lots<br>
> of options. It looks like the low end of their line of interlocking tiles<br>
> runs about US$1.20/sq. ft, e./g.<br>
> <br>
> <a href="https://www.foamtiles.com/interlocking-tile/foam/12-eco-soft-tile.html" rel="noreferrer" target="_blank">https://www.foamtiles.com/interlocking-tile/foam/12-eco-soft-tile.html</a><br>
> <br>
> They're don't ship outside of the US so I'd have to find a different<br>
> supplier, but it seems these foam tiles are not hard to source.<br>
> <br>
> So maybe the easiest solution is to use these interlocking foam tiles.<br>
> They'd provide good traction and could be taken apart and stored when not<br>
> in use. White tape on black tile would do fine. Or black tape on pink. It<br>
> would even be possible to print out the DPRG line following course, spray<br>
> glue it to a set of tiles, then laboriously cut the zig zags with an xacto<br>
> knife. But I'm not suggesting anyone tackle that -- it seems a particular<br>
> sort of torture. But there's a solution to that too, though I have no idea<br>
> what it'd cost: custom mats from SoftTiles.com:<br>
> <br>
> <a href="https://softtiles.com/pages/corporate-projects" rel="noreferrer" target="_blank">https://softtiles.com/pages/corporate-projects</a><br>
> <a href="https://i.shgcdn.com/23d74f3e-4e97-4830-a95a-c01c83aefcc6/-/format/auto/-/preview/3000x3000/-/quality/lighter/" rel="noreferrer" target="_blank">https://i.shgcdn.com/23d74f3e-4e97-4830-a95a-c01c83aefcc6/-/format/auto/-/preview/3000x3000/-/quality/lighter/</a><br>
> <br>
> [Legal Notice: I hold no fiduciary interest in <a href="http://foamtiles.com" rel="noreferrer" target="_blank">foamtiles.com</a> or any other<br>
> foam tile wholesale or retail establishment.]<br>
> <br>
> I might see if they sell these at the local KMart here in NZ. Two four<br>
> packs would be the size of a sheet of plywood and cost about $22.<br>
> <br>
> Nice solution.<br>
> <br>
> Cheers,<br>
> <br>
> Murray<br>
> <br>
> ...........................................................................<br>
> Murray Altheim <murray18 at altheim dot com> = = ===<br>
> <a href="http://www.altheim.com/murray/" rel="noreferrer" target="_blank">http://www.altheim.com/murray/</a> === ===<br>
> = = ===<br>
> In the evening<br>
> The rice leaves in the garden<br>
> Rustle in the autumn wind<br>
> That blows through my reed hut.<br>
> -- Minamoto no Tsunenobu<br>
> <br>
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