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Post by AJR on Jul 3, 2020 11:20:43 GMT -7
interesting info about the DC armature. Sgrigg tried 6 lam arms and they were just to thick no matter how thin he sanded the laminates. all of his t-jet outlaws had the underside of the gear plate hollowed out to accommodate the winds. don't remember too much about Galinko arms. I'm not meaning anything bad about the DC armatures. This particular one just didn't work for this build. It looks really good though. I missed out on the heydays of Sgrigs and Galinko, but I love the nostalgia. Those guys are bada$$es! I was lucky to get some of Jim's stuff before he stopped. We are lucky to have a forum member (Eagle) that winds motors. It seems to be a fading art. I would like to do that at some point but I already have too many irons in the fire. |
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Post by dave632 on Jul 3, 2020 11:40:02 GMT -7
Yes that is what I was mentioning but your problem is with the thickness of the windings.
Maybe some removal of material on the motor brush side, then dropping the arm down deeper into the chassis.
Might also take some off the top plate?
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Post by AJR on Jul 3, 2020 11:48:28 GMT -7
Was able to put some power to it today. I did a little air gap work in the magnet area before putting it all together. The motor magnets were not close to the motor in the stock position. I removed some material and the magnets are now right on the arm. Conventional brush setup (Slottech Turbos) and I put a .474 Super Tire stretched onto the DR-1 dbl flange rims which gives me a .555 diameter. Stretching the tire helps to eliminate slinging the tires off. That was just for some test runs....it needs much bigger. Problem is I may not have the room under the body for the tire it needs. But I will deal with all of that later. I know this thing is lighting them up all the way down the track. Needs a silli foam. Anyway.......last two passes were made at 26v. I haven't tuned anything. Bench set up and made the passes. Best run .4770 @ 27mph 1000' scale. Oh and I was running it on a 60ohm Parma controller with no body. That wasn't even on the switch! I'm pretty darned happy with that right out of the box. It has waaaay more in it  .
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Post by AJR on Jul 3, 2020 11:51:00 GMT -7
Yes that is what I was mentioning but your problem is with the thickness of the windings. Maybe some removal of material on the motor brush side, then dropping the arm down deeper into the chassis. Might also take some off the top plate? That would work but I have motors readily available that I don't have to do all of that for. The Eagle motor dropped right in. Like I said, that motor might be better suited for an AFX chassis. |
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Post by skillet on Jul 3, 2020 13:37:06 GMT -7
September race. Im in. I have already started Frankensteining a chassie. I might not be able to keep up with yours but it would be fun to see it make it down the track without grenading . If it does blow up maybe I'll have a shot at a gear or tire making it over the finish line lol. Sam/Skillet
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comet
Pro Stock
Posts: 363
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Post by comet on Jul 3, 2020 14:20:41 GMT -7
COOL VIDEO
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Post by AJR on Jul 3, 2020 18:17:13 GMT -7
September race. Im in. I have already started Frankensteining a chassie. I might not be able to keep up with yours but it would be fun to see it make it down the track without grenading . If it does blow up maybe I'll have a shot at a gear or tire making it over the finish line lol. Sam/Skillet |
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Post by mazda on Jul 4, 2020 0:37:11 GMT -7
That is a great video and truly amazing micro engineering. Absolutely stunning!
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Post by swiftkart on Jul 5, 2020 10:30:16 GMT -7
Awesome video and build!
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Post by swiftkart on Jul 5, 2020 10:33:42 GMT -7
I have notice some AW 4 gear cars have that step or extra material that keeps thicker motors from fitting and some are open like the old AF chassis without the step, which is interesting.
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Post by AJR on Jul 10, 2020 18:20:09 GMT -7
I have notice some AW 4 gear cars have that step or extra material that keeps thicker motors from fitting and some are open like the old AF chassis without the step, which is interesting. I looked at some of my AFX and AW chassis.The non MT AFX chssis does not have a step. The MT AFX has a step. Both of those measured .2400 from the top of the chassis to the brush level. The AW as we know has the step. I measured several of those and got different measurements on every one. Anywhere from .2390 to .2450......quality right there! Nothing I didn't already know and still some of my fastest 4 gears are AW. So I believe the DC motor is just too thick for anything but should still be useable if chassis and/or top plate modifications are done to accommodate it. |
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Post by sjracer on Jul 15, 2020 19:28:50 GMT -7
Jeff, if it's not a trade secret. In the video what color Nacho tjet neo magnets are you running?
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Post by AJR on Jul 16, 2020 7:07:03 GMT -7
Jeff, if it's not a trade secret. In the video what color Nacho tjet neo magnets are you running? I will have to look to confirm when I get home, but I believe they are red. |
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Post by sjracer on Jul 16, 2020 8:48:42 GMT -7
Thanks I believe he sold an assortment of 4-6 pair for around $50 in a tube.
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Post by AJR on Jul 16, 2020 15:11:25 GMT -7
Thanks I believe he sold an assortment of 4-6 pair for around $50 in a tube. I bought a couple of pair several years ago. I also have some Dash neos that are pretty mean as well. At least I think they are Dash. |
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