Yeh, ha ha, the "21 inch Beach Racers" made a huge difference over the original ones I had on the buggy. I have even had two sessions riding over the Wylie bay dunes and they have fantastic flotation on the deep powdery sand.
Well the 30 replacement bushes turned up and your on the money Paul, they are the thicker ones to take 6004 bearings.
I turned 1.25mm long by 2.5mm deep off the inside shoulder and they seat up against the face of the rims spot on. They are far more snug than the 6204 bushes, with a new measurement of 106mm.
I'm a very happy chappy now.
This has finally allowed me to drill the front axles.
I made a jig to get the wheel lined up with the centre of the steering shaft.
For a final check before drilling, I take the jig off the axle, flip the jig 180 degrees and put it back on to make sure it is the true centre.
It's knocked up from the centers of a couple of old 6204 bearings, some pipe cut to the correct length and some 6mm rod with a point on the end, threaded into the nut that's welded on.
It made it easy, to work out how much to file off the inside face to get the wheel centered. Just add the outside washer and you can mark the hole for the clip.
Unscrew the rod and use it to mark the rear axles as well.
I'm nearly bold enough to say the frames and seats for the 5, LLmini's are completed.
I took me ages to recut my first sail (making your template etc) but it's on a mast ready to fit a boom.
It's no princess, but should work, I hope.
Chook
Hi Chook 2
What was the exact size of those Fallshaw's stacked up against your wall?
I've been looking in the catalogue and cannot decide which ones to go for...yours look about right though.
Those cable ties have worked well.....initially we were just going to use them to sort out positions for mounting brackets.....but they seemed to have stayed and done the job. We judge the crash by how many you break
Cheers Nick
Hi, the wheels have a 4.80/4.00x8 4ply rating tire fitted.
The wheel stands exactly 16" high (I have a bit of an angle on the phone camera) and the tire is, exactly 4" wide.
I finally got the last of the 6004 bearings today, so at long last I can assemble them.
Cheers
Well it worked out that the wheels cost $63.80 including GST each, landed here in Esperance. This is with 2 x 6004 high speed bearings and 2 of the SP 6004 adapters fitted.
They are fantastic quallity, run very true and are well balanced.
finished one wheel (finally)
so clem can have his 19" imac wheel back (thanks clem)
newbie alert.... again, sorry guys uve probably answerd these questions before ive been looking for wheelbarrow wheels and found all sorts of different types.
1. what tyres r most suitable? - pnumatic, semi-pnumatic/PE foam or solid rubber
2. is it important to have an angled axle (leaning in) if so why - i have seen both on here
3. with the steering assembly, what are the pros and cons between vertical forks, horizontal forks and anywhere inbetween - also seen both
also something completely off topic that was jumping round in my head, has anyone tried or witnessed a spinning disk mounted on the undercarriage? - basicly a gyroscopic keel in escence. is it possible and would it work?
Some basics of wheels for land yachts are...
The larger the diameter the less rolling resistance...Wheels are like "flywheels" if they are heavy they take a long time to get rolling and up to speed.
Tyres... the most ideal is a radial tread [with groves around the tyre and no cross treads] chunky or block treads add to drag and slow a yacht down.
Bicycle wheels are NOT strong enough for land yachts they wont take the side forces.
Wheels are often have a slight "camber" to assist in the tyre / working better [it doesn't twist the tyre as much], to much camber will load up the bearings and will actually add drag and slow the yacht down.
The rake on the front forks, "caster" is often about 30 deg. this gives a layover type steering that works better than being more upright. Layover steering is like a motorbike or a bicycle turning at speed. [the tyre contact point needs to be slightly behind a line drawn from the steering column bearings to the ground]
The idea of a gyroscope is interesting but to get the wheel spinning would to add to drag and have no beneficial benefit.
Now that is one smart wheel, very professional build. Any reason for the Hook Worm rather than the Miracle Tire??
The only reason I could see for using a Gyroscope is to assist in keeping the up wind wheel on the ground? Better to use outboard weights and what is more a Gyro can affect some pretty heavy forces on the frame therefore you'd have to make the mounts strong and what Gizmo said but I like your thinking. That is how improvements are made otherwise we'd be still using a bent Log and Oxen to Plow our paddocks. Nah! Let us go further back than that. We'd be still dragging out knuckles Crikey! We haven't improved one Iota since the beginning.
Ron
PS; What are you guys using as wheel Centers/Hubs????
Just another thing to keep in mind with land yachts is that most classes have limitations and sizes on wheels.
While its often interesting to use non standard wheels and perhaps create a rocket of a yacht, one day you will want to race another person and its even better if you are sailing one of similar class specs.
Or even worse you go to a championship and your yacht doesn't meet specs and you have to sit on the sideline.
Here is another choice for someone who likes to tinker a bit. They are 300 - 8" motor scooter tires. They are approx 14+" in diameter, so they will have more rolling resistance than the standard wheelbarrow tires. I am hoping they will last longer than W.B tires, as they are street legal.
They also happen to look quite cool on the LLM, eh?
They also feel sort of soft, like a quality car tire, so they might grip like glue on asphalt...
Dy, They look suspiciously like AZUSA Rims??
The Red Terror over the back
Now there is a good Name for a Land Yacht Now where was I? Ah! Yes the Rad Terror over the back does look good BUTT Sounds like my Girl Friend (Big BUTT) But those bits of metal rod sticking out offer some very nice places for Impaling your self on..
Ron
Now there is a good Name for a Land Yacht Now where was I? Ah! Yes the Rad Terror over the back does look good BUTT Sounds like my Girl Friend (Big BUTT) But those bits of metal rod sticking out offer some very nice places for Impaling your self on..
You gotsta be Sh**tin' me Dy Cheaper in Oz?? I can buy them in the States and ship that sort of thing a couple of bucks cheaper than I can get them here. Generally you ask some Schmuck here for them and they will tell you they aren't in stock but they can have them for you in a couple of weeks... Why the Hell would I pay someone else to do that which I can do myself. Call me Willy, not Silly.
Ron
