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smallboregarage Chuck Kraeuter

Home Page: Chuck Kraeuter   USA
Portland, OR, USA

Total Posts: 26 Latest Post: 2018-03-26
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Week 25

Chuck Kraeuter   USA — Posted on The CycleKart Club
Monday March 26, 2018 12:00 AM


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Member Comments on Journal Entry: Week 25   ↵
2018-03-26 05:25:27 # 49312
Comment by Dennis Graham
Chuck, wouldn't say that I am following, more like curious as to just what in the ell it is that you are doing?????It's appears or should I say, it's obvious that you are a machinist or shop owner with access to CNC equipment and CAD software. But......nothing is or has been labeled as to what it is and most of what you are showing us so far is so far out that it's near impossible to tell what it is that you're showing us..I can't even imagine what it's going to look like once all that custom machine work is assembled.Not to say that 'some' of it is self explanatory, such as the axle and spindles but most of it just appears to be the most complicated way of building a.....something that one could possiblyimagine. It is nice looking work but.......???????Denny GrahamSandwich, IL.
2018-03-26 07:36:03 # 49316
Comment by Cas Tuyn
In the video series I posted about building a race car, the professor advised 5 degree king pin inclination and 5-7 degree camber.Can you explain how you got to your choices? I am not criticising, just curious and learning from others.
2018-03-26 08:17:35 # 49317
Comment by Dennis Graham
You must consider in the professors lecture, he's designing an independent suspension car. The karts are more likethe midget, sprint or dirt cars we race here in the states.dg
2018-03-26 13:02:58 # 49326
Comment by Bob Wilcox
With the scrub you've built into your spindle and the over-max of caster you may not be able to turn very easily.
2018-03-26 13:30:38 # 49327
Comment by Chuck Kraeuter
Denny, I am trying to build a cyclekart to the best of my ability. Looking back, I can see that my journal posts do seem a bit obscure (perhaps due to my excitement and manic nature). I hear you asking for a bit more description in my journal narrative. I'll give it a try. This forum is helping me a lot to understand what I am building, and posting a little original content feels right. (P.S. I am a former machinist).
2018-03-26 13:51:04 # 49328
Comment by Chuck Kraeuter
Cas, My choices are not based on any practical experience. They do reflect my uneducated take-aways from this forum as well as the video series that you posted (many belated thanks for that, I really enjoyed watching those). The 12 degrees of kingpin inclination results in a half inch of scrub radius in my kart (I was afraid to design scrub radius neutral for some inexplicable reason). The presence of kingpin inclination with an adjustable caster angle looks like it will allow for tuning the load on the inside front wheel in a corner (may be important?). Full Ackerman was the easiest control arm for me to build first. These arms are exchangeable on the spindles that I built. if I need to go a different way. That's it for now.
2018-03-26 13:56:15 # 49329
Comment by Chuck Kraeuter
Bob, Scrub measures a half an inch. Caster is adjustable at this point. I may be misunderstanding your help though.
2018-03-26 20:34:25 # 49333
Comment by Bob Wilcox
Sorry I misspoke, I assumed the king pin was perpendicular to the axle.

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Week 24

Chuck Kraeuter   USA — Posted on The CycleKart Club
Monday March 19, 2018 12:23 AM


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Member Comments on Journal Entry: Week 24   ↵
2018-03-19 04:04:13 # 49175
Comment by Brian Woods
Must be nice....wish you lived closer!Brian
2018-03-19 09:26:54 # 49182
Comment by Chuck Kraeuter
Feel free to stop in, when you're this far south.

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Week 23

Chuck Kraeuter   USA — Posted on The CycleKart Club
Monday March 12, 2018 12:23 AM


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Member Comments on Journal Entry: Week 23   ↵
2018-03-12 16:51:20 # 49044
Comment by L W
I'm intrigued. There is a science behind wood as structural supports. Ash is certainly a strong choice. I need to find where I squirreled the structural info on wood types. Glued laminated beams were rated higher than any standard wood such as Ash, Oak, or Maple.Quarter Ellipticals ? Beautiful leaf mounts that I need to know where they came from.Your frame is a work of art. FWIW Louisville Slugger museum offers custom monogrammed bats that might be worked into your project.
2018-03-12 23:08:05 # 49049
Comment by Chuck Kraeuter
Thanks. I think that you're right about the strength of laminated beams. If my current rails break, I could try gluing up the same shape from two or more strips. The springs are straight bar, 5160 steel that I plan to harden to about RC48, unless someone suggests otherwise. The mounts I made from 6061; they're painted flat black.

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Week 22

Chuck Kraeuter   USA — Posted on The CycleKart Club
Thursday March 1, 2018 12:59 AM


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Member Comments on Journal Entry: Week 22   ↵

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Week 21

Chuck Kraeuter   USA — Posted on The CycleKart Club
Saturday February 17, 2018 6:42 PM


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Member Comments on Journal Entry: Week 21   ↵

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Week 20

Chuck Kraeuter   USA — Posted on The CycleKart Club
Saturday February 10, 2018 12:49 AM


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