dezfan
Posts: 1418
Joined: 2/15/2006 From: Oak Grove,
MO, USA Status: online
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quote:
ORIGINAL: mechanicalbob Hey Dezfan your are testing a chassis right? My question have you ever built a chassis from scratch? and I don't mean from a kit but from raw aluminum stock bar and plate? Or spun your own aluminum rims to be narrower than stock? These are what making a crawler fun starting from nothing and getting a great crawler in the end and knowing that you built it. The majority of electric chassis I see out there have a 4-link setup and not to many 3-link setups do you know why that is? I don't but I can take a guess on it. Someone has not made one to work well but when they do it will be great, because a 3-link will give you more articulation, and a few other lil things. The point is that there is more to a NITRO crawler than just the engine and its lil issues, and I have those worked out now thanks to a Heli friend. Some of the other problems are suspension and how to get the most out your setup and there is the CG factor. Nice thing about a Model engines is that you can lay them flat on your chassis to help get the CG down too. Of course there are other things to work out as well. As for your lil challenge Sure it would be nice to make it there to show off, like I said in another post I should have my Nitro Crawler done in late summer. Providing I can get all the bugs worked out of it and I can find the time I would love to go and Crawl. Also Dez have you ever seen a 1:1 electric crawler? I never have, who knows maybe there will be a 1:1 electric crawler. My point in this is that 1:1 crawlers all are powered by fuel (gas/diesel) and alot of them are street driven as well, (I know the comp vehicles are not.) with the engines they are running are standard type mills. They want the power in a mill. So they look at a the mid range of there engine and do there gear setup from there because that is where the !QUOT!sweet!QUOT! spot of torque is. Steve Actually, I have been the test pilot (for lack of a better word) on a few chassis. I just finished testing the XL4 2.2 TLT chassis by RD 400. It is now available for sale to the public. I an currently testing the XRC 2.2 chassis for Xtreme RC and this is the chasis I will be using at the USRCCA National Invatationals in September. I also have prototype Super chassis that is a a torsion based chassis which uses no shocks. I'm not the alpha tester. More of a beta tester on this one. It's called the Claw and is made by CPE. (Pic of chassis below) Have I ever built a chassis from scratch? Yes, a few of them as a matter of fact. None of which were of the caliper of the Stick, NN, or Claw. I have never spun my own wheels as I don't own a lathe. But I have narrowed many a wheel for crawler use. I will agree that the build is nearly as much of a pleasure as crawling. As for the 3 - 4 link question, I have seen several 3 link set ups. They work well. As for providing more articulation? I'll let you in on a little know secret. ARTICULATION IS WAY OVER RATED! Anything over 60 degrees is a waste. There are a few new designs out that use pan car pivots as their means of articulation w/ out shocks and they have won events (P.A.R.C. 2.2 Champion uses this chassis of his own design and it works awesome!). I can respect your desire to build it from nothing. I can respect the skill it takes to build it. And I hope it works. I think my POV on this matter is misunderstood. My "anti" nitro stance isn't that it can't be done, it has more to do w/ the majority of people w/ nitro not having the skills or determination that you possess and who might try crawling w/ their T Max or Revo and fail, get frustrated, and not look any further into the sport of crawling. As for the 1:1 electric crawler, well you have me there. I havent seen one. That being said. I think it has more to do w/ available battery technology and the weight of those batteries more so than lack of power from electric motors. After all, freight trains use diesel motors (which we all now have TONS of torque), but they use them to power ELECTRIC motors which actually do the work. I've enjoyed discussing this w/ you Steve, good luck! And I look forward to seeing your progress. Dez
< Message edited by dezfan -- 7/9/2006 7:05:40 AM >
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TEAM PANTHER DRIVER / JP CUSTOM RCs / J Concepts 07 CMRCRC 2.2 Champ / 07 KC 2.2 Mid West Champ / 2 Time USRCCA Qualif
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