Search found 184 matches
- Wed Mar 30, 2011 2:53 pm
- Forum: Ski/Snowboard Design and Layup
- Topic: Vacuum infusion for ski building, Core Matters and Cold Cure
- Replies: 17
- Views: 6199
polyurethane in ski's
I am close to doing my first build of ski's, these are prototypes mainly to test construction methods not on hill performance. My decision was made early on to use Polyurethane sidewalls, rather than UHMWPE. Polyurethane sticks like the proverbial, and also is easily machinable and I believe bonds w...
- Fri Mar 04, 2011 9:37 pm
- Forum: Journals: Log Your Ski Building Progress
- Topic: Getting started!
- Replies: 323
- Views: 190999
nice one Tim!
Hey mate well done, you're getting the rewards for all the hard work. Post more vids of your trip please so I can be envious!!! Cheers, Rich
- Fri Feb 18, 2011 11:11 am
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: Grounding the press/cassettes
- Replies: 43
- Views: 16484
we actually agree I think
Hi, yep sliding is exactly the reason I want to gently squeeze out first, I'm talking 10 minutes, possibly shorter. I don't see it as a biggie, regardless of whether its 5 or 10 however long it takes to get any excess resin moving to avoid any sliding - I did say I am using some registration pegs et...
- Fri Feb 18, 2011 2:37 am
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: Grounding the press/cassettes
- Replies: 43
- Views: 16484
good question!
Well the heat goes on last, so the pressure is ramped up over say 10 minutes in 10 psi increments, so the pressure still comes on before the resin has a chance to cure (unless its really hot day???) then the heat will go on once full pressure and squeeze out is achieved. Turn that around the other w...
- Thu Feb 17, 2011 4:24 pm
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: Grounding the press/cassettes
- Replies: 43
- Views: 16484
router profiler
Hi, yep I'm using a variable speed 2000W router with a nice 40mm straight cut 2 flute 1/2" chuck, it cuts beautifully. The router will be on some linear bearings in the z axis and maybe on the shorter y axis too, the x axis will be 2 metre long angle iron with bearings and uhmwpe guides. Quite ...
- Thu Feb 17, 2011 12:31 pm
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: Grounding the press/cassettes
- Replies: 43
- Views: 16484
how will I know if the pressure control helps or not?
Good question fellas, I hope its just not an over complicated and expensive option thats for sure, its been fun building it at least! As suggested I will weigh them and I will be accurately measuring how much resin goes in also. Obviously building snowboards I won't care as much but for ski's yes I'...
- Wed Feb 16, 2011 5:21 pm
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: Grounding the press/cassettes
- Replies: 43
- Views: 16484
Vinman - good idea mate!
Hi, yes good point, get a sparkie to help you out if in doubt, might save you or a buddies life eh! cheers
- Wed Feb 16, 2011 5:12 pm
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: Grounding the press/cassettes
- Replies: 43
- Views: 16484
earthing cont.....
Hi Rich, Well the electronics should hopefully have some good isolation from the mains through whatever low voltage power supply is in between, if you're worried about protecting your electronics from mains spikes? Any stray voltages generated within the press need to be nailed or you may have all k...
- Tue Feb 15, 2011 2:32 pm
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: Grounding the press/cassettes
- Replies: 43
- Views: 16484
earth wired spec?
Hi, I would use similar or only slightly heavier than phase/neutral wires so you know it is not the weakest link. It does not need to be super heavy as its only carrying the same fault current that flows through phase/neutral and for long enough to blow the breaker which should be the weakest link e...
- Tue Feb 15, 2011 2:18 pm
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: Grounding the press/cassettes
- Replies: 43
- Views: 16484
RCD - residual current device
Hi, Glad I could help. RCD = residial current device. It compares the phase and neutral for any current difference, if there is then it must be leaking to earth. In a safe circuit phase and neutral should have the same current flowing of course. I'm not sure if RCD are used in the US or not. Serious...
- Tue Feb 15, 2011 12:40 pm
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: Grounding the press/cassettes
- Replies: 43
- Views: 16484
getting zapped? hope not
Hi guys, thought I'd throw my thoughts in here for what its worth. I do have an electrical background experience and industry qualifcations so I can talk reasonably well on this. My advice applies to NZ scenario, and any other country that follows the similar MEN multiple earth neutral system. Typic...
- Mon Jan 17, 2011 12:40 am
- Forum: Journals: Log Your Ski Building Progress
- Topic: More Monkey business
- Replies: 122
- Views: 74112
cool!
hey nice work Rich what number ski pair is that? looking pro! hows the heat controller going now? Did you work out the RCD problem? cheers, Richie
- Thu Dec 02, 2010 12:06 pm
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: DIY Silicone Heat Blanket
- Replies: 332
- Views: 205376
electrical safety
Hi guys, I'm from an elecrtical background so can offer some advise here. First of all your blankets and controller should have some form of electrical protection. In NZ we use earthing to provide a fault path for current to blow a circuit breaker, so in the event of a burn out heater touching your ...
- Thu Dec 02, 2010 12:53 am
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: Finally finished this press, can I go be sick now?
- Replies: 15
- Views: 11001
wow, thats a workshop brother!
mate, thats wicked, nice press, nice workshop, nice rocker/camber templates, nice everything you're all set! well done!
- Wed Dec 01, 2010 5:51 pm
- Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
- Topic: My press almost complete and some pics finally!
- Replies: 2
- Views: 2144
My press almost complete and some pics finally!
Hi Guys, finally I have a few pics of my press construction online, on a gallery , check them out! its been a mission but I am winning slowly, heat blanket and controller to build next.....cheers, Rich my gallery is under my username "richie" http://www.skibuilders.com/cpg/index.php?cat=10...