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| Home Made Boards (6188 Posts)
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Home Made Boards |
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Wheel Well Tool
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On 7/4/2007
PaulW
wrote in from
United Kingdom
(80.254.nnn.nnn)
Hey! Nice one... that's just made my week!
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mo bettah...
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On 7/4/2007 shapeshifter
wrote in from
United States
(24.148.nnn.nnn)
a good way to make a board better is by riding it.
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wolfgang
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On 7/4/2007
cam
wrote in from
Australia
(220.233.nnn.nnn)
thats a very general question, got pictures of the board you made? be more specific and we can help.
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homemade boards
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On 7/3/2007
wolfgang
wrote in from
United States
(68.90.nnn.nnn)
ok,I made my own board but I was wondering how I could make a better board out of another board.
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Wheel Well Tool
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On 6/26/2007 The Speaker Guy
wrote in from
United States
(71.131.nnn.nnn)
I read this board this weekend, surprised nobody made a tool to do this. This uses scrap wood, 5/16 all thread, old bearings, and a home made drum glued to the all thread. There's a few warts, but it worked good to create accurate and reproducible wells.
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My First Board (in a Decade or so)
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On 6/26/2007 The Speaker Guy
wrote in from
United States
(71.131.nnn.nnn)
I made a new board this weekend, finished it tonight. The board is 8"x32", meant for straight up riding, no tricks or speed. There is a very slight taper. The deck is 3/4 thick, solid oak and solid pine. I'm hoping that the oak stringers provide enough strength. I liked the appearance of the raw wood so much, I decided to experiment with the finish. First was three coats of Polycrylic, dry over night, sand with 220 grit. I made a stencil out of printer paper spray-mounted to the deck with a hibiscus pattern. Through the stencil I sprayed acrylic, then while the finish was wet I sprinkled blue sand. I let it set for a couple hours, and removed the stencil. Let dry over night, then rub with paint thinner to remove excess spray mount. Refinish with several light vcoats of spray acrylic. Trucks are Randall 180s, wheels are older Kryptonics. 
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6-WHEELER MATH
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On 6/24/2007 Greg Olsen
wrote in from
Canada
(137.186.nnn.nnn)
Interesting. I could feel that middle truck wobbling at about 60 hz as I read that PSR. Nice description! And the crash story too! I was there in my mind as I read it. Nice writing. Maybe I can really imagine the crash because I took a big biff on Friday night showing all my middle aged non skating friends at a dinner party how I could rip down the hill in front of the host's home doing ultrafast TS-like turns. I am hurting. Some dress clothing shredded. Palms and kness too. AND i was sure I had broken a wrist but it bounced back today. My friends call me the 'Wolverine' because I heal so fast. Pretty good for a guy who is going to be 49 in a month-ish. :)
Herbn yeah the reality of two wheelbases working together in harmony is difficult to envision. It is easy to imagine how disharmony could result.
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scrub avoidence
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On 6/24/2007 herbn
wrote in from
United States
(64.12.nnn.nnn)
there's definitely sin/cos, tan math (trigonometry) to figure out EXACTLY (Not yelling just emphasising))how to make, for example) a 32 and a 36 inch wheelbase steer exactly the same. It's probabely smaller wedges than you normally would use,so you'd probabely have to make something, it may just be a washer or two,or some shime stock and a hole punch. If you see chris's six wheeler look for that type of thing closely,he probabely looked up and reviewed the math,that flywheel sticker looks a bit thick and it just happens to go under the baseplate a bit. I'm just making that up but that could be the reality. I don't think exact math is gonna say 3 degree's front truck and an 1/8 riser for the back.
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6-wheel (or more) steering
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On 6/22/2007 PSR
wrote in from
United States
(75.69.nnn.nnn)
Greg, um, YUP.. I've learned that only slight amounts of differential in either height or steering bias with closely spaced double front trucks is the way to get the 'set-up' right. Scrub will slow you, a little, but it's more likely to cause the Wobbles in one truck. I did try the narrower truck idea out, and with the Tracker Extrack/Sixtrack combo (6-track in front) on my sled, I got really good results in ride feel; But, I also lost my 'feel' for where my hand-grab was, and sucked a leather glove off by way of it wrapping around a DirtClod at 45 mph. Maybe not an issue for someone making a stand-up board, but it sure got my attention! That sled had a frame that was kind of an inverted S-Camber shape (look at Airflow or Roe S-camber slalom boards, but go with the low-end up front, and make it a 5-foot luge that's 11" wide), so it tended to lift the front truck set, putting a bias on the middle truck. The solution for traction was simple enough, add height to the rear truck, and a very slight (two faucet washers under the baseplate) negative wedge/lift effect for the front truck.
A friend of mine got that silly warped piece of plywood up to about 70 mph (we had a Baseball Coach's Radar unit) on Rt-4 just west of Rutland (when it was under construction), but forgot about the expansion joints being 1-1/2" higher (last coat of tar wasn't on yet) at the bridge at the bottom of the hill. Took both front trucks clean off, square-cut two of the 80mm Bullets(the back ones), and made him slide on his leathers about 3/4 of the bridge's length. We didn't even try to find the front two trucks/wheels, and the board was splinters. To this day, all I need to say to Dave is 'speed bump', and his eyes still get plenty wide!
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other truck and wheels drags/drifts:brakes
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On 6/22/2007 Greg Olsen
wrote in from
Canada
(137.186.nnn.nnn)
.....whichever truck has the most weight on it will drag/drift the other one. i....
Oh if I read more carefully I would see that Herbn just said that. Duh...
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A brake of sorts
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On 6/21/2007 Greg Olsen
wrote in from
Canada
(137.186.nnn.nnn)
Thank you PSR for your answer on Kwiksplits.
Umm...6 wheeler musing... Standard trucks and wheels: if the two sets of wheels were set up so one set had the dominant amount of traction and the other set scrubbed in the corners by having a VERY different turning radius (wedged differently), it would slow you down...which might be useful on certain hills....or you might have them fighting for traction and have less traction than a single pair.
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mult wheeler
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On 6/21/2007 herbn
wrote in from
United States
(64.12.nnn.nnn)
supposedly,"in theory" the out side truck(longer wheelbase)should be slightly wedged so it turns in the same circle as the inner truck. If you don't whichever truck has the most weight on it will drag/drift the other one. i guess slightly narrower might work also. The way you'd have to figure this out might go like this,if you had a truck with a certain turning angle,45 degrees is easiest. so ,you lean the board 10 degrees , the hangers also steer at ten degrees(the nature of a 45 degree truck),both trucks turn equally,turned ten degrees a 20 inch wheelbase will carve a tighter arc than a 24 inch wheelbase,if you wedge the outer wheelbase to get the same turn radius as the inner,well... it's sort of a mess...trying to visualize, i'm not sure if you can ever get the wheels to follow each other exactly,when you wedge you're going to raise that truck so the other trucks gotta go up the exact amount, gog's ,i think don;t vary ride height when you alter the angle,but i don't think the wheels are gonna follow each other"exactly" but probabely good enough for a skateboard.
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6 wheeler
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On 6/20/2007
munchh
wrote in from
United Kingdom
(217.44.nnn.nnn)
I read that the second truck (inside the rear) has to be slightly narrower than the outside one, as it is turning a tighter circle and isnt always in contact with the ground (on a cambered deck) only the deeper you turn?
Not sure if thats much help, but worth thinking about?
I think PSR is on the right track though.
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Dropped dualie?
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On 6/19/2007 PSR
wrote in from
United States
(75.69.nnn.nnn)
Arbi, doing a drop-thru with extra trucks would be kinda risky, as you're putting the stresses of both axles out along two relatively thin beams of wood. It might work with a deep-layered deck, or with glass or carbon or metal reinforcement, but be wary of the area where the deck goes narrow by the inboard truck, it's the weak spot. Moreover, I'd think you'd get some lateral twist from the outboard truck? Depends on materials, I guess. Wheelwells or an 'outrigger' brace could help keep the stiffness intact.
Front-truck dualie is usually a Luge configuration, as that's where the rider's body mass is concentrated (2/3rds Front, 1/3 rear), but in Standup, it'd provide a lot more speed in straights, but leave the tail 'loose' in traction in corners. That's why Payaso (Roadie Racer wheels,Propeller boards) maker Tim Oates used dualies at the rear, more traction at the tail, better sliding control, and less wobbles. C.C. used the dualie up front at Maryhill, as it's a wide-open kind of 'sweeper' turn road, so carrying speed was more important than controlling it thru tight corners or steeps.
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4 wheels to an axle...
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On 6/19/2007 PSR
wrote in from
United States
(75.69.nnn.nnn)
Greg, I don't know if any info is still floating around in the ether, but a KwikSplit-like truck assembly was out before Kwiksplit, the MOE Racing tandem wheel axle kit, designed for Luges 8-9 years back. SoulBoards longboard store had a few really long longboard decks featuring these even as late as this winter, but they're rare, even amoungst DH/Luge enthusiasts.
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Kwiksplit adapter-like thingies
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On 6/19/2007
Greg Olsen
wrote in from
Canada
(209.205.nnn.nnn)
How well do these Kwiksplits work? I know they use Rollerblade wheels ...but what if you made something similar that used regular skateboard wheels? That way you would only still need one truck per end and the wheel movements would be synchronized. You could experiment with variations that didn't rotate on the truck axle or didn't rotate independently one side to the other. How would these variations work you think?
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6 wheels down
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On 6/17/2007 herbn
wrote in from
United States
(64.12.nnn.nnn)
i think i remember chris' method, or maybe i thought of this, read something into a chaput post. He would add the truck i guess behind the first front truck(no wheels), you could probabely measure how high the axle is(while you're standing on the board) with a caliper's depth gauge, you could put a level on the front of the board so you can see it's straight while measuring. Let's say the top of the axle is 41 mm off the ground (left and right averaged),subtract half an axle(4mm) you get 37,so you either use 74 mm wheels ,or add a 1 mm riser under the front truck.something like this.
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6 wheels
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On 6/16/2007
arbi
wrote in from
Australia
(220.237.nnn.nnn)
What I got is a 54" plank thats pretty stiff and I want to add an extra set of trucks to the front drop through...not even sure what truck would be best, what distance apart... pretty sure its gotta go on the front though???
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thanks munchh
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On 6/10/2007
cam
wrote in from
Australia
(220.233.nnn.nnn)
thanks man, that was the pic i was looking for, for some reason it didnt com up when i searched for it.
Arbi, what kind of 6 wheeler are you setting up ie trucks, dropthrough,etc...? i know that chaput uses 4 wheels in front for some reason, but it seams to work well for him. i always thought that the extra two whels would go in the back to add to the grip, i know adrain from creative sk8 has a 6wheeled gs board with tfour wheels in the back. i think you would want a pretty stiff board with no flex so that all wheels are always in contact with the ground. those are my thoughts on the subject
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6wheels
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On 6/9/2007
Arbi
wrote in from
Australia
(220.237.nnn.nnn)
Anyone got any tips on putting together a 6 wheel dh standup board???
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cut down randals
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On 6/9/2007
Munchh
wrote in from
United Kingdom
(86.149.nnn.nnn)
Think this is what your after, Mr.Caput posted the pic a while back.
I think this one i a Geezer X one aswell, i could be wrong, but i was wondering about doing it as a front slalom truck, has anyone done it?
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boards
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On 5/29/2007 Sven
wrote in from
United States
(75.68.nnn.nnn)
Ok, so the board i made snapped in half in a ditch.
I need to drop way more cash if this is going to work.
And that isn't going to happen. Oh well.
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randals
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On 5/26/2007
cam
wrote in from
Australia
(220.233.nnn.nnn)
thanks PSR and daniel m. i saw a cutdown randal on hugh r's homepage, but that has been shutdown for some reason. anyway i might just have to do a little experiment.
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Randal cut-down
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On 5/26/2007 PSR
wrote in from
United States
(75.69.nnn.nnn)
Cam , there's been a few posts on this here, and Hugh's boardpage (I think?) had a pair (maybe Silverfish?) shown in-the-process of being made. My take on it has been that the Randal's big sticky pivot has mitigated the rewards of a narrower/quicker-leverage truck. If you try this, be sure to use 8mm axles and look into getting that pivot working with less friction.
Here's C.C.'s take on Dave's Randal offsets, which were made by Geezer-X a few years back. In the cut+paste, I don't think the photos will transfer, so you may need to use "Search" + Entire Archive + 'randal offset' again to see what all was done.
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Search for randal offset found 2 entries
Truck Reviews
Truck Review
Dave's randal offset On 6/6/2005 Chris Chaput wrote in from 66.116.xxx.xxx:
Dave, I hear what you're saying but you may have come to a false conclusion about that setup. You've changed three (or more) things about the setup at the same time.
1. The hanger width has been decreased by over an inch
2. The new position of the axle trails more and is lower
3. The wheelbase has also shrunk
The narrower hanger and shorter wheelbase could account for more quickness than the trail's stabilizing effect. It's hard to say. The better test would have been to keep the hanger width at 150mm, to have moved the front truck up the length of the offset, and to see how it worked as a front truck, and then as a back truck. The other issue is that the 50 degree baseplate turns very quickly (more steer than lean).
What I am suggesting is that we take the 35 degree rear truck and flip the swingarms OR that we put the rear hanger on a front 50 degree baseplate and keep the swingarms in the stock position. We'd want to maaintain the same hanger width and axle-to-axle wheelbase for real A/B testing. Changing only one thing (axle position as it relates to the kingpin/pivot cup) is the only way to compare the result.
randal offseted On 6/6/2005 DAve G wrote in from 207.69.xxx.xxx:
Guriously..I had Geezer modify a Randal 4or5 years ago. He cut it down to 108mm and flanged offsets onto it, in a "sweeping/trailing fashion,so that the axles are in alignment w/ the base of the kingpin..to this day it is the quickest turning front truck I've ridden..only bummer is it was for 8mm hubs only.
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cutting down trucks
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On 5/26/2007 daniel m.
wrote in from
United States
(68.11.nnn.nnn)
hey cam, i'm sure Herbn knows all about cutting down trucks.
(that's your cue)
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