| chimchimm5 | 12-19-2006 05:36 PM |
Sliding cup holder or other ghetto G-meters
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I want something that visually demonstrates a crude degree of G's (in all horizontal directions) so that my rear seat mounted in-car camera mount can see it. This is so in the video, it can be seen what kind of forces were being experienced as the video doesn't always convey this well. This just a crude visual reference and is intended to be inexpensive; I know data loggers and a G-meter will do the trick but that's too expensive for me right now.
One idea: the dash mount cup holder
I think about 15 years ago, I saw a friend have a cup holder that mounts on top of the dash. This holder was different; it had a base which was mounted, and a top that mated to the base like a half ball in a bowl, and slided easily in all directions. This supposedly was a "no spill" cup holder that kept the cup level as the car moved. I have no idea what these things are called or where to get them and ebay/google/amazon have not turned up anything. Anybody have any info on these things?
Or any alternative suggestions how to achieve this visual reference?
I thought about the "graduation tassle on the rear view mirror" but it's too swingy.
One idea: the dash mount cup holder
I think about 15 years ago, I saw a friend have a cup holder that mounts on top of the dash. This holder was different; it had a base which was mounted, and a top that mated to the base like a half ball in a bowl, and slided easily in all directions. This supposedly was a "no spill" cup holder that kept the cup level as the car moved. I have no idea what these things are called or where to get them and ebay/google/amazon have not turned up anything. Anybody have any info on these things?
Or any alternative suggestions how to achieve this visual reference?
I thought about the "graduation tassle on the rear view mirror" but it's too swingy.
| benw | 12-19-2006 05:45 PM |
take a passenger. their heads always flop around. :D
| Kostamojen | 12-19-2006 05:48 PM |
Clear plastic cup half filed with cola and covered with clear seran wrap.
| chimchimm5 | 12-19-2006 06:03 PM |
[quote=Kostamojen;16380592]Clear plastic cup half filed with cola and covered with clear seran wrap.[/quote]
Hmmm... ok, Bunta, father of Ryo. ;)
Hmmm... ok, Bunta, father of Ryo. ;)
| leecea | 12-19-2006 06:14 PM |
Similar to the cup idea, what about a length of clear plastic tube in an arc shape and partially filled with colored liquid. I think that would work. It would be hard to calibrate.
I think a pendulum of some type is easiest. Maybe something more rigid than a tassle would be OK.
I think a pendulum of some type is easiest. Maybe something more rigid than a tassle would be OK.
| lummer shawn | 12-19-2006 06:18 PM |
There is a little meter you can run that measures everything from G's, to gears, to RPMs to everything, and places it in to the video
I saw it on some of the clips that Randy Zimmer has on his site
[url]www.RandyZimmer.com[/url]
I saw it on some of the clips that Randy Zimmer has on his site
[url]www.RandyZimmer.com[/url]
| chimchimm5 | 12-19-2006 06:32 PM |
[quote=lummer shawn;16380960]There is a little meter you can run that measures everything from G's, to gears, to RPMs to everything, and places it in to the video
I saw it on some of the clips that Randy Zimmer has on his site
[URL="http://www.RandyZimmer.com"]www.RandyZimmer.com[/URL][/quote]
that's a lot of clips... any one in particular?
I saw it on some of the clips that Randy Zimmer has on his site
[URL="http://www.RandyZimmer.com"]www.RandyZimmer.com[/URL][/quote]
that's a lot of clips... any one in particular?
| chimchimm5 | 12-19-2006 06:35 PM |
BTW, are things hanging from your mirror not going to pass tech inspection?
| Danny Boy | 12-19-2006 06:36 PM |
Hang something from your rear view mirror. I use a cross on a short piece of twine that was given to me a while back.
Danny
Danny
| Clavo | 12-19-2006 06:48 PM |
Your cupholder mount I think is called a " gimbel " type mount. Like they have on gyroscopes etc.
And the string thing from the rearview also works good.
And the string thing from the rearview also works good.
| chimchimm5 | 12-19-2006 06:55 PM |
[quote=ClavoWRX;16381346]Your cupholder mount I think is called a " gimbel " type mount. Like they have on gyroscopes etc.[/quote]
THANKS! That's the word I was looking for.
THANKS! That's the word I was looking for.
| lummer shawn | 12-19-2006 07:12 PM |
[QUOTE=chimchimm5;16381143]that's a lot of clips... any one in particular?[/QUOTE]
he has it running on his "passing bruno" clip from the ice races
ive seen some higher res footage that makes it alot easier to see the stats
but its a pretty cool system none the less
im pretty sure he posts on here "randyzimmer" is probably his screen name
if not, email him if you have any question
REMEMBER FOLKS - ALWAYS BE NICE WITH INTERNET DOWNLOADS -> Right Click + Save As
[url]http://www.randyzimmer.com/video/sherbrooke/2006/passingbruno.avi[/url]
he has it running on his "passing bruno" clip from the ice races
ive seen some higher res footage that makes it alot easier to see the stats
but its a pretty cool system none the less
im pretty sure he posts on here "randyzimmer" is probably his screen name
if not, email him if you have any question
REMEMBER FOLKS - ALWAYS BE NICE WITH INTERNET DOWNLOADS -> Right Click + Save As
[url]http://www.randyzimmer.com/video/sherbrooke/2006/passingbruno.avi[/url]
| gregr01 | 12-19-2006 07:49 PM |
[URL="http://cgi.ebay.com/ebaymotors/Escort-G-Timer-2-GT2-Performance-Computer-SALE_W0QQcmdZViewItemQQcategoryZ38654QQihZ018QQitemZ280059594241QQrdZ1QQsspagenameZWDVW"]Escort G-Timer GT2 on eBay for $68.[/URL]
[IMG]http://www.escortradar.com/images/GT2.gif[/IMG]
[IMG]http://www.escortradar.com/images/GT2.gif[/IMG]
| Mykl | 12-19-2006 08:52 PM |
[QUOTE=gregr01;16382078][URL="http://cgi.ebay.com/ebaymotors/Escort-G-Timer-2-GT2-Performance-Computer-SALE_W0QQcmdZViewItemQQcategoryZ38654QQihZ018QQitemZ280059594241QQrdZ1QQsspagenameZWDVW"]Escort G-Timer GT2 on eBay for $68.[/URL]
[IMG]http://www.escortradar.com/images/GT2.gif[/IMG][/QUOTE]
I might have to get one of those just for giggles.
[IMG]http://www.escortradar.com/images/GT2.gif[/IMG][/QUOTE]
I might have to get one of those just for giggles.
| chimchimm5 | 12-19-2006 09:29 PM |
Aw man... after reading up on these things it looks like I'm just gonna end up splurging on a G-tech pro RR. However, I think Gtech needs to make it use a USB cable instead of serial.
I wonder if I could use it when I go go-karting too (if I bring a 12v power source) I know it won't get RPM, but it could measure G's and time.
I wonder if I could use it when I go go-karting too (if I bring a 12v power source) I know it won't get RPM, but it could measure G's and time.
| cooleyjb | 12-19-2006 09:49 PM |
Just make sure you understand what the data actually means and what the limits are if you use it.
Peaks mean very little, sustained is what you should be looking at. Many people with these things look at the peaks and give that out as the info resulting in inflated numbers.
There are also other things that come into play that the g-tech machines don't take into account like body roll. For every degree the car rolls off of level you need to subtract .011 from the lateral G loading.
Yes Gtech states that the reading are very accurate and tehy are, however they only give accurate real life readings when used in a very controlled setting where all the variables can be accounted for.
Peaks mean very little, sustained is what you should be looking at. Many people with these things look at the peaks and give that out as the info resulting in inflated numbers.
There are also other things that come into play that the g-tech machines don't take into account like body roll. For every degree the car rolls off of level you need to subtract .011 from the lateral G loading.
Yes Gtech states that the reading are very accurate and tehy are, however they only give accurate real life readings when used in a very controlled setting where all the variables can be accounted for.
| IronMonkeyL255 | 12-19-2006 10:06 PM |
[QUOTE=chimchimm5;16380780]Hmmm... ok, Bunta, father of Ryo. ;)[/QUOTE]
Actually, it would be Bunta, father of Tak.
Ryo is the driver of the white FC.......
Actually, it would be Bunta, father of Tak.
Ryo is the driver of the white FC.......
| Butt Dyno | 12-19-2006 11:22 PM |
[QUOTE=IronMonkeyL255;16383493]Actually, it would be Bunta, father of Tak.
Ryo is the driver of the white FC.......[/QUOTE]
"Tak"? "Ryo"? Ohnoes.
Ryo is the driver of the white FC.......[/QUOTE]
"Tak"? "Ryo"? Ohnoes.
| kotaro | 12-19-2006 11:26 PM |
If you don't want to spend any money you could just look at your ignition key's keychain movement, it's a bit meh but it works if accelerations are strong enough. :lol:
| nhluhr | 12-19-2006 11:52 PM |
[QUOTE=chimchimm5;16380433]I thought about the "graduation tassle on the rear view mirror" but it's too swingy.[/QUOTE]How about something lighter weight and more 'air-catching' so that it slows itself down?
Like a cotton ball on a string?
Like a cotton ball on a string?
| grippgoat | 12-19-2006 11:59 PM |
This guy looks like he'd love to help:
[img]http://www.tein.com/goods_photo/keycase_pachi.jpg[/img]
-Mike
[img]http://www.tein.com/goods_photo/keycase_pachi.jpg[/img]
-Mike
| crystalhelix | 12-20-2006 12:06 AM |
how about syrup instead of cola - or olive oil with die in it so it doesn't readily slosh around...borrow somebody's meter and graduate a clear solo cup...this could be a cool project for sustained G's
| Mind | 12-20-2006 07:51 AM |
I remember from a high school physics field trip to an amusement park that we crafter some crude vertical and lateral g-meters. The lateral one was a protracter held with the straight-side up, the a weight was hanging from a string at the center of the straight section. Then, the weight would pull the string to a certain angle on the protractor and from that you could determine the lateral g. And some poor kids had to try to read these things while on the rollercoaster.
Anyway, I think the string would be swining around too much in all directions, so itwould probably be near-impossible to read the angle... but maybe hanging a little something from the rear-view would give some kind of relative reference...
Anyway, I think the string would be swining around too much in all directions, so itwould probably be near-impossible to read the angle... but maybe hanging a little something from the rear-view would give some kind of relative reference...
| JamesWilson | 12-20-2006 10:20 AM |
Certain video systems now have on-board 3-axis accellerometers that overlay data directly onto the video in real-time. Moderators prevent me from talking about it, but my company manufactures them. :)
-James
-James
| goto_racing | 12-20-2006 10:49 AM |
I kept my class of 96 tassel hanging from my rear view mirror in my first DE car. Seemed to work rather well. 45 degrees = approx. 1G. Trying to keep it from flying all over the place was a nice excercise in smoothness too :)
Chris Lock
Chris Lock
| afpdl | 12-20-2006 11:00 AM |
How about that g-meter from the mini commercials awhile back (yes its a real product)
| REX8 | 12-20-2006 11:09 AM |
You can get an ORIGINAL G-Tech pro for under $30 on ebay.
Got mine for $40, NEW about 4 years ago.
Got mine for $40, NEW about 4 years ago.
| orbit03 | 12-20-2006 12:16 PM |
put one of these on your dash:
[img]http://www.wahasurfshop.com/Product%20Images/hula%20girl%20uke%20green%20large.jpg[/img]
That is what we have in one of our rally cars. :)
[img]http://www.wahasurfshop.com/Product%20Images/hula%20girl%20uke%20green%20large.jpg[/img]
That is what we have in one of our rally cars. :)
| digitalseance | 12-20-2006 12:48 PM |
[QUOTE=benw;16380554]take a passenger. their heads always flop around. :D[/QUOTE]
As demonstrated [URL="http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=1073284130"]here[/URL]. The part I'm refering to is towards the end of the run. The passenger's helmet covers almost the entire viewing angle. :lol:
Btw, I was showing this person what auto-x is about. She couldn't find her way around the course and she was going like 15mph the whole time. That's why you hear some comments that you do.
As demonstrated [URL="http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=1073284130"]here[/URL]. The part I'm refering to is towards the end of the run. The passenger's helmet covers almost the entire viewing angle. :lol:
Btw, I was showing this person what auto-x is about. She couldn't find her way around the course and she was going like 15mph the whole time. That's why you hear some comments that you do.
| TyrannoSullyRex | 12-21-2006 12:09 PM |
Get yourself a big gulp of orange drink, undercover brother style.
[img]http://www.polarblairsden.com/superheroundercoverbrother01.jpg[/img]
[img]http://www.polarblairsden.com/superheroundercoverbrother01.jpg[/img]
| afpdl | 12-21-2006 12:17 PM |
[QUOTE=afpdl;16388671]How about that g-meter from the mini commercials awhile back (yes its a real product)[/QUOTE]
Found it, Gwhiz [url]http://www.motormate.com/gwhiz/index.php[/url]
Found it, Gwhiz [url]http://www.motormate.com/gwhiz/index.php[/url]
| DankWRX | 12-21-2006 12:34 PM |
[quote=TyrannoSullyRex;16402668]Get yourself a big gulp of orange drink, undercover brother style.
[IMG]http://www.polarblairsden.com/superheroundercoverbrother01.jpg[/IMG][/quote]
thats freakin hilarious. That and denise richards are the only good part about that movie. :disco:
[IMG]http://www.polarblairsden.com/superheroundercoverbrother01.jpg[/IMG][/quote]
thats freakin hilarious. That and denise richards are the only good part about that movie. :disco:
| chimchimm5 | 12-21-2006 01:05 PM |
[quote=afpdl;16402782]Found it, Gwhiz [URL]http://www.motormate.com/gwhiz/index.php[/URL][/quote]
Sold out.
[IMG]http://www.motormate.com/gwhiz/images/main.gif[/IMG]
Sold out.
[IMG]http://www.motormate.com/gwhiz/images/main.gif[/IMG]
| ScottPWRX | 12-21-2006 01:40 PM |
Take a big rubber bands with a fish weight in the middle. put knots in the band to hold the weight in the middle
like this:
I
/\
\/
I
Attach it to a piece of wood with a nail on top and bottom to hook the band to.
Turn it on its side (Band pointing left and right) and hang another weight to it and mark this spot where the original weight is pulled to, I think this would approximate 1 lateral g.
Repeat for the other side and divide equally into 10 segments for 10ths of a g.
Very crude but I think it would be an adequate approximate measure.
Then mount this apparatus vertical within the camera shot...
<--- not a physicist, just thinking out loud...
Scott
like this:
I
/\
\/
I
Attach it to a piece of wood with a nail on top and bottom to hook the band to.
Turn it on its side (Band pointing left and right) and hang another weight to it and mark this spot where the original weight is pulled to, I think this would approximate 1 lateral g.
Repeat for the other side and divide equally into 10 segments for 10ths of a g.
Very crude but I think it would be an adequate approximate measure.
Then mount this apparatus vertical within the camera shot...
<--- not a physicist, just thinking out loud...
Scott
| Calamity Jesus | 12-21-2006 02:53 PM |
[QUOTE=chimchimm5;16381439]THANKS! That's the word I was looking for.[/QUOTE]Actually, the word you were looking for is inclinometer.
[img]http://www.offroadbutikk.com/acatalog/inclinometer.jpg[/img]
[img]http://www.4x4wire.com/mitsubishi/tech/minutemods/inclinometer/inclinometer.jpg[/img]
[img]http://www.offroadbutikk.com/acatalog/inclinometer.jpg[/img]
[img]http://www.4x4wire.com/mitsubishi/tech/minutemods/inclinometer/inclinometer.jpg[/img]
| chimchimm5 | 12-21-2006 03:08 PM |
[quote=Beaverboy;16405345]Actually, the word you were looking for is inclinometer.
[IMG]http://www.offroadbutikk.com/acatalog/inclinometer.jpg[/IMG]
[/quote]
Oh snap is that for real? Where can you get one of these airplane things?
BTW, that gives me a good idea: use a ball compass.
[IMG]http://www.speeding.co.uk/acatalog/SMALLCPCOMPASS.jpg[/IMG]
[IMG]http://www.offroadbutikk.com/acatalog/inclinometer.jpg[/IMG]
[/quote]
Oh snap is that for real? Where can you get one of these airplane things?
BTW, that gives me a good idea: use a ball compass.
[IMG]http://www.speeding.co.uk/acatalog/SMALLCPCOMPASS.jpg[/IMG]
| chimchimm5 | 12-21-2006 03:11 PM |
[quote=ScottPWRX;16404036]Take a big rubber bands with a fish weight in the middle. put knots in the band to hold the weight in the middle
like this:
I
/\
\/
I
Attach it to a piece of wood with a nail on top and bottom to hook the band to.
Turn it on its side (Band pointing left and right) and hang another weight to it and mark this spot where the original weight is pulled to, I think this would approximate 1 lateral g.
Repeat for the other side and divide equally into 10 segments for 10ths of a g.
Very crude but I think it would be an adequate approximate measure.
Then mount this apparatus vertical within the camera shot...
<--- not a physicist, just thinking out loud...
Scott[/quote]
Nice idea... you get the macgeyver award. :D
like this:
I
/\
\/
I
Attach it to a piece of wood with a nail on top and bottom to hook the band to.
Turn it on its side (Band pointing left and right) and hang another weight to it and mark this spot where the original weight is pulled to, I think this would approximate 1 lateral g.
Repeat for the other side and divide equally into 10 segments for 10ths of a g.
Very crude but I think it would be an adequate approximate measure.
Then mount this apparatus vertical within the camera shot...
<--- not a physicist, just thinking out loud...
Scott[/quote]
Nice idea... you get the macgeyver award. :D
| chimchimm5 | 02-02-2007 03:07 PM |
[quote=chimchimm5;16403476]Sold out.
[IMG]http://www.motormate.com/gwhiz/images/main.gif[/IMG][/quote]
This gives me an idea. I'm gonna get some clear tubing, a marble/ball bearing, and some zip ties....
Is this gwhiz measuring actual Gs? If so, why is 1G at about 45 degree angle? Even with friction I'd think that 1G would be closer to 90 degrees. Oh... waitaminute... that's cuz lateral 1G + gravitational 1G = 45 degrees. Ahhhh.
[IMG]http://www.motormate.com/gwhiz/images/main.gif[/IMG][/quote]
This gives me an idea. I'm gonna get some clear tubing, a marble/ball bearing, and some zip ties....
Is this gwhiz measuring actual Gs? If so, why is 1G at about 45 degree angle? Even with friction I'd think that 1G would be closer to 90 degrees. Oh... waitaminute... that's cuz lateral 1G + gravitational 1G = 45 degrees. Ahhhh.
| GarySheehan | 02-02-2007 04:16 PM |
[QUOTE=chimchimm5;16380433]I want something that visually demonstrates a crude degree of G's (in all horizontal directions) so that my rear seat mounted in-car camera mount can see it. This is so in the video, it can be seen what kind of forces were being experienced as the video doesn't always convey this well. This just a crude visual reference and is intended to be inexpensive; I know data loggers and a G-meter will do the trick but that's too expensive for me right now.
[/QUOTE]
What are you trying to accomplish? Is this something to show your friends when they see the video?
I can't see it giving any kind of useful data to perform chassis tuning or driver development.
Gary
Sheehan Motor Racing
[url]www.garysheehan.com[/url]
[/QUOTE]
What are you trying to accomplish? Is this something to show your friends when they see the video?
I can't see it giving any kind of useful data to perform chassis tuning or driver development.
Gary
Sheehan Motor Racing
[url]www.garysheehan.com[/url]
| chimchimm5 | 02-02-2007 05:32 PM |
[quote=GarySheehan;16910346]What are you trying to accomplish? Is this something to show your friends when they see the video?
I can't see it giving any kind of useful data to perform chassis tuning or driver development.
Gary
Sheehan Motor Racing
[URL="http://www.garysheehan.com"]www.garysheehan.com[/URL][/quote]
This is definitely NOT for chassis tuning or driver development as it would be too inaccurate.
This is for the video, for me. Nice for my friends, but mostly for me.
BTW.. forget making my own. I found this one which does the job: clinometer
[IMG]http://i4.ebayimg.com/02/i/06/9a/28/3c_1_b.JPG[/IMG]
[url]http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&sspagename=STRK%3AMEWN%3AIT&viewitem=&item=8049133212&rd=1,1[/url]
I can't see it giving any kind of useful data to perform chassis tuning or driver development.
Gary
Sheehan Motor Racing
[URL="http://www.garysheehan.com"]www.garysheehan.com[/URL][/quote]
This is definitely NOT for chassis tuning or driver development as it would be too inaccurate.
This is for the video, for me. Nice for my friends, but mostly for me.
BTW.. forget making my own. I found this one which does the job: clinometer
[IMG]http://i4.ebayimg.com/02/i/06/9a/28/3c_1_b.JPG[/IMG]
[url]http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&sspagename=STRK%3AMEWN%3AIT&viewitem=&item=8049133212&rd=1,1[/url]
| chimchimm5 | 02-23-2007 01:49 PM |
Can it get more ghetto than this? haha
[IMG]http://farm1.static.flickr.com/135/399980740_61c7b1368b.jpg[/IMG]
[IMG]http://farm1.static.flickr.com/135/399980740_61c7b1368b.jpg[/IMG]
| Kostamojen | 02-23-2007 06:30 PM |
That works. Hopefully the tape holds under all those massive G-forces :lol:
| Web Foot STi | 02-24-2007 12:19 AM |
I like it.
Wish I could find my G Analyst.
Wish I could find my G Analyst.
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