Toy Fair 2010 – Shepherd
Shepherd were showing off a number of new parts on their stand including this new chassis plate for the Velox V8. Made from a different material, it is identical in design to the standard part but is much stiffer making it ideal for racing on high traction surfaces. Other new items include a new radio box for the V10, answering requests by customers that have been looking for this to protect their receiver from crashes and splashes. As we announced before the show, the German company now have their own line of foam on road tires which they had on display and finally for the V10 there is now a complete range of optional springs. We were told that we can expect a set of brass weights for the V10 as well as a oneway axle that can be locked by inserting pins in the coming months.
Categories - Exhibitions, Products, Shepherd
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1. Roy B - February 5th, 2010 at 21:35
Quote:
Made from a different material, it is identical in design to the standard part but is much stiffer
End quote.
Since the design is stil the same, thus the moment of resistence is the same. i dont understand
The material is still aluminum i think, how is it possible that the chassisplate is stiffer, since all aluminums have about the same modules off elasticity…….?
Maybe someone cann explain this to me, maybe i forgot something.
2. Stefan - February 6th, 2010 at 01:12
That depends on the alloy of this aluminium and its crafting.
3. Kitracer - February 6th, 2010 at 04:15
I understand if you use different 7075 from different company, the spec / property are slightly different. Then there is the final surface treatment where you can go softer or harder… My guess!
4. engineer - February 6th, 2010 at 09:12
there are different grades of aluminium available, depending on the alloy a different e-modul is the result
or do you want to say that every steel has the same stiffness?
5. Roy B - February 6th, 2010 at 16:13
Ok, but what is much stiffer, a E-modules of 73000 N/mm2 instead of 70000 N/mm2 ?
If the material is harder it only breaks later? It isn`t stiffer?
6. Roy B - February 6th, 2010 at 16:19
The resistence against bending of steal/alu is always the same,
maybe the alloy changes it for a few percent…. but not much.
Harder material through heat threadment only makes it harder and less tougher, the slope off the law off hook stays the same. (almost)
7. Roy B - February 6th, 2010 at 16:28
But then again, What is MUCH stiffer.
Is this lets say, 1.5% (my guess)
Or something like 20%…
8. engineer - February 7th, 2010 at 07:41
maybe you should get both chassis plates in your hand and try it by yourself, you will feel the difference
9. Roy B - February 7th, 2010 at 13:36
Maybe i do,
have to say i really like the technical concepts off both cars,
nice solutions for the breakingssystem.
10. Stefan - February 7th, 2010 at 16:54
I think that in the RC-industry every little improvement is called ‘much’. Sure, a top notch driver could feel that difference I bet. Maybe he could run 10 more consistent laps before tires go or maybe a better turn in or something.
You can make materials hard with a soft core (every crankshaft i.e.) and you can set the depth of the hardening process, too. But I think it’s rather 5% than 20% in this case.
11. Stefan - February 7th, 2010 at 17:04
For the braking system … when Robert Pietsch moved to Mugen Seiki, I wrote that this basic design will be found on the MRX-5, too. And … LOL
Really nice cars from Shepherd. But that golden car with diamonds is at the wrong fair … the millionaires’ fair is in Moscow.
12. Roy B - February 8th, 2010 at 00:33
True, maybe the top drivers really feel the difference,
point is that harder is something different then stiffer.
13. Stefan - February 8th, 2010 at 15:39
Yes, that’s correct. Hardness is not equal to stiffness. Hardness is the characteristic that describes the resistance against irrupting parts or particles while stiffness is the characteristic that describes the resistance against irrupting forces that would cause deflection and/or torsion. If it’s stiffer as written in that article then it’s rather a (slightly) different alloy than a different crafting to its predecessor I think.