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Hey all, this is the new Land Board i have from Ground Industries. I am wondering how i attach the base. There are those 4 holes there that don't fit the trucks so I can't help but to think they must be for a base of some kind. What do you guys think??
Besides the obvious way of drilling a hole in there.
Cheers,
on my landboard you had to drill a hole. looking at yours i think you will have to as well.i dont see how a base could be attached with that four hole configuration. 
SuperGlue, because its SUPER!
seriously thou, maybe bolt a plate to the board using the four holes, then the mastbase would attach to the plate? or maybe just drill 4 holes in your mastbase? i dunno if oyu can take the middle bolt out :o
just get a bit of scrap wood like 20mil thick and cut it so it lines up with those holes. countersink a around 10 mill with a spade bit and than drill a hole for the u/j bold to fit through, put a nutt on than you just need to line up the bit of wood with the 4 holes and bolt it on, no mods to the board, but a little bit of work, 15 mins max. ill post a image of what i meen, coz it hink none of that makes sence
maybe you could use one of those kite things to pull you around.
be a ground clown 
Have been looking to get a land board myself . Did you import this or are they available in Aus.
Looks like you're going to have to either redesign the strap mounts, or get really good at riding switch-stance...
Easiest way to mount the mast base will be to drill through, and use a decent sized washer on the bottom. Not so easy, but no mods to the board would be to bend up a piece of ali or stainless to make a kind of a bridge _--_ so that you could bolt the ends of the bridge through the existing holes, and mount the mastbase on top. You'd need to leave enough clearance for the spare mastbase bolt to hang out between the 'bridge' and the deck. You could do something similar with a piece of timber (which is what Jord was suggesting) Or, if you want to be able to take your mastbase off easily to use on your real windsurfer, you find a fitting, and make something like this:
On my other board, I decided to just drill a hole and put the threaded fitting in directly:
The fittings I used look like this:
They have a big coarse thread on the outside to bite into the timber deck, and a thread on the inside which takes the mastbase bolt. I only used them because there is no way to access a nut under the deck of my boards due to a steel frame which would be in the way.
I think you're onto something Mr 555, I did think about thread thingos but i didnt know if you could buy them easily. Do you reckon bunnings would sell them???
Jordo, thanks for taking the time to draw the diagram, i did also think about the wood like you explained it.
Hinch, A co-worker ordered them in from SHQ Boardsports me thinks, they are over in eastern states....somewhere
cheeers
Mr FiveFiftyFive, what type of board is that in your picture?
The trucks mechanism looks interesting.
oh no that diagram took me hours, haha i dont know what i was thinking about,, and to think im doing a design for indusrty (industrail design) coarse and came out with that piece of art
give me a break guys, just coz i dont spell gud an stuf...
but... yes i should double check my spelling if thats what your getting at
gonna make one of these bad boys i reckon! when sailing these do you hook in? concerned with going endo and smahing my face (and the rest of me) to bits in the sand
I haven't hooked in yet.. but I'd feel reasonably comfortable doing it now that I have a feel for the local wind effects at the beach. I never fully realised how consistent the wind was until I spent an hour riding back and forward through the same piece of beach at speed - it had alway felt gusty, but it turns out that it just consistently blows harder at some points of the beach.
The biggest problem with my current set up is that my board doesn't let me get far enough back relative to the mast foot. To match up with my wave board, I'd need to get my back foot back another 120mm. Obviously this does bad things to your stance, and the balance of things.
On the plus side though, having weight a bit further forward keeps some traction on the front wheels - the same would probably happen with hooking in though, pushing weight down through the mast foot.
I haven't endo'd(yet!). Speed wobbles are an issue to start with, especially with a nasty old flat sail in gusty conditions. Gear carnage isn't too bad - most of the time when I've come off it's been slow, and it's easy enough to jump off and hold on to the boom or mast on the way. Failing that, it's just a case of figuring out how to 'drop' the rig so it lands on the boom rather than diving straight in mast first. Bodily carnage so far includes a smashed toe (mate had a go without wearing shoes, and smashed his toe into the sand mid-crash), a strained ankle from my best wipeout (parachute landing roll is handy!), and a few bruised achile's from stepping off in front of the back wheel, and having it run into the back of my ankle.
If I was going to make a board, I'd use an overgrown skateboard style truck (like the ones on Mike's board) on the back end, and some castoring wheels on the front as well as making the deck longer, and a bit wider around the front straps (currently I don't have a front strap, but mainly because the deck is so short that it's just as effective to push against the mast foot). I'd also try to get the rear strap in line with the rear wheels which would make it feel more like a balanced 'fin'.
I've looked into making something a bit more custom, but the challenge has been finding decent castoring wheels of a suitable size. Castoring front wheels would allow more freestyle style tricks, and also means that the rear wheels don't need as much 'lock' when turning. Dropping the deck down closer to the ground would be good too, but you have to compromise somewhere!
