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Old 09-28-2006, 07:58 AM   #15841
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Old 09-28-2006, 09:26 AM   #15842
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Quote:
Originally Posted by HarshGuy
Print yourself up the Toe Blocks spreadsheet at tryhard's site: http://www.thard.co.uk/excel.html ...it kind of explains them all and what toe/width combination you get when you put differnt blocks on the car.
harsh,

I looked at the chart and was curious, Aren't the Neg. signs in the wrong place. Usually Neg. means toe in and if the narrower is the front block would you have neg. toe rather than pos. toe?

Just curious though the the chart is still very helpful for a quick guide knowing that you just have to switch the neg. and pos. sign.

Thanks
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Old 09-28-2006, 12:40 PM   #15843
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Quote:
Originally Posted by f1larry
harsh,

I looked at the chart and was curious, Aren't the Neg. signs in the wrong place. Usually Neg. means toe in and if the narrower is the front block would you have neg. toe rather than pos. toe?

Just curious though the the chart is still very helpful for a quick guide knowing that you just have to switch the neg. and pos. sign.

Thanks
No offence (and I do see your point, the setup sheets are labeled that way round), but I've always treated toe out as negative, and in as positive. Hence why thats the way I've labelled it that way when creating the chart.

HiH
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Old 09-28-2006, 02:20 PM   #15844
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Quote:
Originally Posted by TryHard
No offence (and I do see your point, the setup sheets are labeled that way round), but I've always treated toe out as negative, and in as positive. Hence why thats the way I've labelled it that way when creating the chart.

HiH
Ed
TryHard,

Thanks for the answer. I was just asking to make sure I was not crazy. The chart is awesome and I appreciate the effort you took in making it. With your clearification I now know how to use the chart without confusing myself. And I usually don't even talk Neg. or Pos. as when some tells me the Degree of toe I know it usually is toe in unless they are talking about the front.

Thanks Again,
Larry
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Old 09-28-2006, 05:20 PM   #15845
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hey guys,
just some designs of top decks I've been playing around with for the MRE.

Let me know what you think.

Ed
Attached Thumbnails
Tamiya TRF415-top-deck-1a.jpg   Tamiya TRF415-top-deck-1b.jpg   Tamiya TRF415-top-deck-2a.jpg   Tamiya TRF415-top-deck-2b.jpg   Tamiya TRF415-top-deck-2c.jpg  

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Old 09-29-2006, 02:53 AM   #15846
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Help

I run 48dp on my tamiya cars.. Im confused on how i work out a ratio cus a 25 tooth 48dp pinion is bigger than a 25 tooth 64dp pinion so even though the calculation is the same the ratio must be different. Im struggling a bit to put this into words...... Can you understand what im asking
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Old 09-29-2006, 02:54 AM   #15847
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Default TRF 415 MSX MARC RHEINARD ON SALE!!

Hey,

I have put my brand new TRF415 MSX Marc Rheinard Edition, on sale. Used once.

Check out the On sale forum: http://www.rctech.net/forum/showthread.php?t=131075

Thanks..

Chami
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Old 09-29-2006, 03:40 AM   #15848
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Quote:
Originally Posted by jnrtin
Help

I run 48dp on my tamiya cars.. Im confused on how i work out a ratio cus a 25 tooth 48dp pinion is bigger than a 25 tooth 64dp pinion so even though the calculation is the same the ratio must be different. Im struggling a bit to put this into words...... Can you understand what im asking
Right let start with the basics 64 dpi mean 64 teeth per and inch 48 dpi mean 48 teeth per inch

Also don't run 48 dp with 64 dp it won't work!!

With the gears the size doesn't matter but the ratio does 25 tooth on 102 tooth spur at if both gears 64 or both are 48 will work out the same. But you can't fit a 102 tooth 48 dp spur in a 415 as it too big. So ratio will pinion divided by the spur * internal ratio of the drive trian 2.187 for orignal drive train and 2.25 for the new tao5 drivetrain.

Arguements for coarser 48 pitch is it stronger and easier to mesh
Arguements for a fine 64pitch is it's more efficient than 48 and quieter too .
i hope I have explained it in as simple terms as possible, as i am mechanical engineer i can over complicate it.
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Old 09-29-2006, 03:43 AM   #15849
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Quote:
Originally Posted by TryHard
hey guys,
just some designs of top decks I've been playing around with for the MRE.

Let me know what you think.

Ed
Can you stress them first on Cosmo and post the results then I can comment.
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Old 09-29-2006, 04:28 AM   #15850
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I'll have to "obtain" the software and let you know.

It's still pretty easy to see which will be stiffer than the others... If you consider how that mount on the car, and some basic mechanical thoery.
I sometimes think we rely a little too much on software, when a little thought goes a long way
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Last edited by TryHard; 09-29-2006 at 09:21 AM.
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Old 09-29-2006, 08:45 AM   #15851
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How come you have not got cosmo? it built into solid works. Using software utilises the strength of the componet in the right places and removes weight where you don't want it or you can make a thicker cf top deck of the original optimised design.


You want the top deck to be stiff but not too stiff to cause the car to tweak when hit things so you want the design to cope with a little flex when you hit things i.e boards or pit walls......
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Old 09-29-2006, 08:59 AM   #15852
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what makes you think he's using solidworks ?
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Old 09-29-2006, 09:29 AM   #15853
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Quote:
Originally Posted by Smoking motor..
..or you can make a thicker cf top deck of the original optimised design.
what makes you belive the original design is optimised?
I would highly doubt that the design of the current top deck has been anywhere near any computer modelling... (same for the chassis plate).

And I'm using SolidEdge v14, not Solid works, hence why I don't have Cosmos. BTW,it's all self taught, I enjoy playing around with designs and stuff. Would be interesting to run the designs through the software... but how much difference it would make over all is negliable.
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Old 09-29-2006, 10:20 AM   #15854
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tryhard:
countersunk would be nice
also
how about trying something like the xray adj top deck..make the same size cut outs and use the xray parts for the stiffener...

maybe you could even leave the screw hole on the batt side off..the one that holds the antenna mount on the electronics side
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Old 09-29-2006, 11:17 AM   #15855
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Default What pinion gear to use w/ novak 5.5 motor

Hi guys,

I just got a MRE and I put the novak 5.5 BL system. what pinion should I run? I am using the stock 104 gear. Thanks in advance.
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