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| Home Made Boards (6188 Posts)
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Home Made Boards |
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internal threads
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On 1/12/2006 herbn
wrote in from
United States
(64.12.nnn.nnn)
i'm making the bolts long enough to run into the tapering ends of the threads,maybe i'll even clean off a bit of the threads off the end of the bolt,i'm using m5 bolts,regular socket allen,4mm wrench, not a domed 10/32 with a little 1/8 inch wrench.wow, today i was checking it out if keep the board at about 5/16 thick over the baseplates my griptape will be even with the top of 83mm flywheels. I think the first board will be 3/8 birch,with beams next to the baseplates,nothing fancy ,well perhaps a bit of carbon fiber.
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internal threads=ouch
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On 1/12/2006 duane
wrote in from
United States
(68.15.nnn.nnn)
man just be careful with those internal threads. I made that style for a couple years. I did everthing "right", i.e. cleaned off oil after machining, replaced thread locker every time, 1/2"+ of engagement etc.
still I took a hell of a slam from out of nowhere. slalom seems to provide just the right type of side loading to somehow spin that fastener right out, and I had checked everything at that start of the session. the coefficient of sliding friction of a wheel-less axle is pretty damn low, I found out
it would be trick to use left-hand threads on the left side, but hard to find the supplies
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Ti axles done
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On 1/12/2006 herbn
wrote in from
United States
(64.12.nnn.nnn)
trucks done,machined from 3/8,pretty close to perfect 8mm diameter ,m5 internal threads,just about perfect . Hollwoed out the 3/8 part ,then gave it an internal plug,because i alway put a set screw in there just to be certain about axle fit. It never fails, when i do a number of supposedly equal fits , there's always just a bit of variety. One axle fit tighter half way into the hanger, it seemed as though it wasn't gonna go to bottom,in a blind hole(can't just knock it out),i managed to slowly pry it out by clamping it close in the lathe chuck and with a pair of screw drives pry it out ,about .020 at a time. Then sand and file it down for a long time,it ended up being the loosest fit but stil quite tight at the very bottom. Although these ti axles are replacable, the fit it quite tight on all of them,removing the set screws and pulling them out is not a very likely possibility, clamping the hanger in the lathe a drilling out the axle is a more likely and very unattractive situation,drilling out ti is a major hassle,i glowed out a very expensive,special,drill while hollowing out one of the axles.335 grams,is the weight of each truck,a little more than one old style flywheel with bearings,the new ones have a smaller core they might be heavier.
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ideal construct
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On 1/11/2006 herbn
wrote in from
United States
(64.12.nnn.nnn)
42/43 inch length, tapered balsa core,.375 or so to .550 or so back to .350 slight camber slightly front of center thickest spot at top of camber. carbon skins ending .375 from edge, edge of board in ash or maple,thin birch skins top and bottom,truck pockets with built in shock pads.
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foams
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On 1/11/2006 duane
wrote in from
United States
(68.15.nnn.nnn)
I like the Last-a-foam for building molds and plugs and making big 3D shapes because it sands beautifully, and comes in ridiculously huge pieces if you want to pay for it. But for building boards I recommend a tougher foam like Klegecell which has much higher shear strength. That helps keep the carbon or glass from tearing off the surface after flexing a few hundred times.
Balsa is much better than any foam however.
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1st vacuum pressed deck
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On 1/10/2006
Munchh
wrote in from
United Kingdom
(86.137.nnn.nnn)
Hey you lot,
its all getting very technical over here,
i've just posted some picks on the 'pumping' forum of the roarokit kit i finnished, reshaped, extra oak veneer on the bottom to make it look sweet, set up for the 'trap', that is getting alot of attention at the moment, Tracker race tracks, wedged, with my favorite 70's flashbacks.
Thought i'd let you all know, so you can have a look, didn't want to post them twice,
Cheers,
Munchh.
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foaming at the mouth
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On 1/10/2006 shapeshifter
wrote in from
United States
(198.160.nnn.nnn)
glenn:
wicksaircrft.com has a list of different densities available. i have used the F400-085 in the past with good results.
lately though i've been using thee 10 gallons of two part 15 lb. that i can mix up and blow into a mold.
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ti axles
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On 1/9/2006 herbn
wrote in from
United States
(205.188.nnn.nnn)
they're almost done , the ti part mostly. 8mm bearing .375 in the hanger with just a speed rings worth of the larger od sticking out , .250 id on the hollowness inside the hanger, m5 threads inside the 8mm part, .750 deep, this leaves solid ti from about the inner bearing to about an inch into the hanger.gram weenie be me,just under 20 grams per axle ,2 per truck.when you are making a foam board the "stuff" is a rigid polyurithane foam, the other "stuff" might be the glue, epoxy,slow curing(3hr+) might be considered the best. Styro foam , from the box your new tv came in and polyester resin won't work.
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makeing a foam core board
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On 1/8/2006
glenn
wrote in from
United States
(72.192.nnn.nnn)
hey when u make a foam core board with fiberglass and stuff what kind of foam do you use
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WOW!
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On 1/6/2006
Munchh
wrote in from
United Kingdom
(86.137.nnn.nnn)
Herbn,
Big WOW.
Looking real good man.
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different concepts
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On 1/5/2006 herbn
wrote in from
United States
(152.163.nnn.nnn)
hanger 1, on the left has a longer cylindrical area that actually involves rounding over the middle block, and blending it to the same diameter as the round extension piece. This makes the middle piece a bit weaker (maybe lighter) but it lets me clamp both pieces in my lathe chuck, the jaws cross the seam between the two pieces. This makes for a stronger less flexing hanger during the final machining of the ends of the hanger,including drilling for the axle. I kind of like the look of hanger 2 just a bit better,it's a bit stronger. Neither hanger is even close to being minimally strong,i don't know if any trucks can be clamped on one side and be machined smoothly on the other. and these trucks will probabely weigh in at about 320 grams a piece, about the weight of a venture feather lite 5.0 and 100 grams less than a randal r2.
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my trucks
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On 1/3/2006 herbn
wrote in from
United States
(205.188.nnn.nnn)
hhmmm,cool,seeing my trucks up on this page. I reworked out a couple of details on them today. The pivot posts,actually interlocking seperate pieces from the main hanger piece,were crazy thin walled, the bolt head of the bolt that holds them in their recesses on the main hanger piece, was the main source of strength.The sleeve just provided a sliding surface,today i machined down the boltheads just a bit more so that a new different pivot post could be made and it would have a slightly thicker sidewall and while i was at it the countersink for the bolt was made a bit shallower, just for a bit more strength. i wrote svarteld, these trucks are slightly different from each other. I take weeks to make them( i don't work on them continuously)and think about them(a lot,too much?) so while i'm not working on them i redesign them and get new idea's, some can be used right away, but i have a some fairly sigificant changes in mind already,for the next few pairs.
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herbn's trucks
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On 1/3/2006
svarteld
wrote in from
Sweden
(83.250.nnn.nnn)
Hello folks,
I just have to share some of the pictures I've got from herbn of his truck project - sweet looking. I'll leave the words to you, herb.
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swvil board
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On 12/28/2005
glenn
wrote in from
United States
(72.192.nnn.nnn)
http://flyingaces.com/snake_board.html
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swevil board
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On 12/27/2005
dan
wrote in from
United States
(71.36.nnn.nnn)
i saw a kid at this skateboard park with this weird
board. his feet were locked into the board and the ends of the board
swiveled. it was sweet i need to help to find a board like this?
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correction!
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On 12/24/2005 Liam
wrote in from
United Kingdom
(81.171.nnn.nnn)
...probably much easier!
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Interesting stuff..
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On 12/24/2005
Liam Fourie
wrote in from
United Kingdom
(81.171.nnn.nnn)
Very interesting forum guys keep it up,i have never analysed my skating to such an extent though but i find that sliding board fascinating!
I learnt to slide on my race set up going fast this is probably
i met two Swedish guys that drove us back from the Dalby forest race this November forgot your names though!(sory)
If you know who i am talking about please could you put me in contact as i would like to get some photos that they took at the event.
Many thanks liamsk8er4life@hotmail.com
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interesting slider board
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On 12/21/2005 herbn
wrote in from
United States
(152.163.nnn.nnn)
but i think i like a nose and tail on slider boards. I've done tail slide berts on slider boards and noseslide laybacks might still be on my todo list. It could be a dropped board like that, i guess.That would be interesting.
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Paul,
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On 12/20/2005
svarteld
wrote in from
Sweden
(83.250.nnn.nnn)
no worries mate. Do skin it if you give it a try, to make it stiffer. An added spine won't work well in this case for stiffness, since there's not much ground clearance. This is the easiest sliding deck I've tried - low, wide, light, turny, symetrical, nice foot lock etc - even I can slide on this :-)
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thanks!
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On 12/19/2005
Paul Steuri
wrote in from
United States
(207.200.nnn.nnn)
Thanks alot for the pic those are great! That board looks like fun, I'm anxious to give it a try!
Thanks again!
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...
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On 12/17/2005
svarteld
wrote in from
Sweden
(83.250.nnn.nnn)
...forgot to mention: the truck cutouts were first made for DH bases, that's why they're too long. The wheels have worn down a little too much for enough belly-clearance (once 65 mm, now about 47), use something like 70 mm sidesets (Flashbacks, Hawaii). /P
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picture, svarteld
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On 12/16/2005
paul steuri
wrote in from
United States
(207.200.nnn.nnn)
Svarteld, do you think you could send me a pic of your seismic drop deck? that would be very helpful!, if not its fine!
thanks!
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long double kicks
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On 12/13/2005 herbn
wrote in from
United States
(152.163.nnn.nnn)
they may be a bit expensive to modify(eh what the hell) but arn't some of those longer than average double kick ,kind of popsickle stick boards made out of thicker heavier wood(8 ply), if you did this type of mod to a pocket pistol or one of those others maybe a jay smith or similar,you could mount a truck on a spoon nose and a tail,tail would be the front,hhhmmm.
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Kick flip conversion
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On 12/13/2005
svarteld
wrote in from
Sweden
(83.250.nnn.nnn)
Yup, I have the 30 deg baseplates on the kicks, works out to be about right with the angles of the kicks if you want "normal" steering. Cutout is needed for the wheels, but not much if you use the 180 mm hangers and sideset wheels. To get the flex right I reckon it needs to be skinned with glass or carbon /P
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