Search found 70 matches

by chrislandy
Mon Apr 25, 2016 7:08 am
Forum: Ski/Snowboard Design and Layup
Topic: Pressing Skis with Titanal
Replies: 17
Views: 9065

My gut is telling me that there won't be significant springback with 0.6mm ali, I'm swaying towards differential expansion of the top and btm layers or ali. My thinking behind this? With only 30mins cure time, the heat will not have permeated through the base at the same speed as the topsheet. Might...
by chrislandy
Mon Apr 11, 2016 12:45 am
Forum: Aprés Ski Building
Topic: The kids learning to ski
Replies: 6
Views: 4034

To follow up on this, just got back from the last week of the season in Bagneres-de-Luchon, France, in the Pyrenees. https://farm2.staticflickr.com/1646/26092353640_94eac62a1a.jpg I also tried skiing for the 1st time in 20+ years (been boarding since), I can't understand why I kept boarding for so l...
by chrislandy
Tue Mar 15, 2016 5:10 am
Forum: Aprés Ski Building
Topic: The kids learning to ski
Replies: 6
Views: 4034

No snowdome around here unfortunately :(

I learnt to ski at the same place 25 years ago!
by chrislandy
Mon Mar 14, 2016 5:16 am
Forum: Aprés Ski Building
Topic: The kids learning to ski
Replies: 6
Views: 4034

The kids learning to ski

I thought I'd share this, I don't usually do the proud dad showing off thing but the kids did so well this weekend on their second ski lesson I couldn't contain myself! 4 & 5, they even went up the button lift by themselves! https://farm2.staticflickr.com/1684/25152974234_3b42f2e8fb.jpg https://farm...
by chrislandy
Fri Feb 26, 2016 2:23 am
Forum: Journals: Log Your Ski Building Progress
Topic: Snowsferatu - adventures in seduction and darkness
Replies: 9
Views: 4593

That's very cool!

Have you seen the ETT video of a "sound" snowboard? MP3 & sound generator linked up to a phone to use the G and gyro sensors
by chrislandy
Thu Feb 25, 2016 5:43 am
Forum: Journals: Log Your Ski Building Progress
Topic: Snowsferatu - adventures in seduction and darkness
Replies: 9
Views: 4593

why not use a linear or rosette strain gauge rather than an accelerometer? that way you can just have a direct reaction to the varying resistance

edit: forgot so say, frikin cool idea!!!! Now you've got me thinking about a LEW, light emitting wakeboard
by chrislandy
Thu Feb 25, 2016 5:40 am
Forum: Journals: Log Your Ski Building Progress
Topic: New project on the way
Replies: 5
Views: 3204

Re: You

Thank you for reply. The I-beams are so massive and big that they can not deflect. The press weight more than 800 kg (1700 pounds). Greetings. Deflection and buckling are two very different things. I think knightsofnii is meaning local buckling of the C-section column webs at the points where you h...
by chrislandy
Fri Feb 19, 2016 2:54 am
Forum: Ski/Snowboard Design and Layup
Topic: Intermediate Womens skis (For an 80 year old)
Replies: 22
Views: 7851

Id try and keep it a surprise but get her into a conversation where she tells you what she likes in a ski i.e. did she take her own or rent some at the slopes? If she rented them, did she like them, what didn't she like, were they heavy, which ones were they if she can remember etc...
by chrislandy
Wed Feb 10, 2016 4:34 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Vacuum Pump advice
Replies: 15
Views: 8063

heke, that's similar to the pump I have. Overall I would consider them OK, I have run it continuously for 24hrs without issue. You can tell if you get a leak as the pump tone changes. It is quite quiet when running, mine came with a thick foam mat for noise isolation which helped considerably. You d...
by chrislandy
Thu Jan 21, 2016 4:58 am
Forum: Aprés Ski Building
Topic: Completely OT but CAD graphics card thoughts?
Replies: 2
Views: 2460

I've been guided towards the AMD W5100 and the NVIDIA GTX970 cards, the AMD is a certified workstation card but the other is a gaming card which gives me a little apprehension. according to autodesk it now runs on directX-11 and shader 5.0 and have been told this is what the gaming cards run on so t...
by chrislandy
Wed Jan 20, 2016 2:01 am
Forum: Aprés Ski Building
Topic: Completely OT but CAD graphics card thoughts?
Replies: 2
Views: 2460

Completely OT but CAD graphics card thoughts?

Being a Structural Engineer I'm pretty graphics heavy on the graphics cards, so the time has come to upgrade the graphics card on my workstation. I know there are a few people who use 3D modelling on here so maybe I can tap the grey matter? I've currently got an AMD Firepro V5700 which has been grea...
by chrislandy
Fri Jan 15, 2016 7:48 am
Forum: Journals: Log Your Ski Building Progress
Topic: Heksu
Replies: 79
Views: 26824

heke wrote: I think in Europe we don't use 6k, 12k etc. I have not heard this before.
it's the number of fibres per tow so you'll often find them designated 200gsm 6k or 675gsm 12k etc
by chrislandy
Wed Dec 23, 2015 3:29 am
Forum: Ski/Snowboard Design and Layup
Topic: Wood topsheet - best way to protect from the elements
Replies: 27
Views: 16103

Linky to german site http://www.maritimusboote.de/epages/289397.sf/en_GB/?ObjectPath=/Shops/289397/Products/DURC-4 you will need hardener / catalyst plus if spraying the thinners too. I approached a local automotive spray shop and they came up with a good rate for doing them - as it was a time charg...
by chrislandy
Tue Dec 22, 2015 2:59 am
Forum: Materials and Supplies
Topic: Vinyl tape printing
Replies: 9
Views: 4045

Re: Vinyl tape printing

Hi, a little concerned about my topsheet printing. I have no white inks and I really need them. I would like to print on some white thin film. I have heard about vinyl film but have never printed on it and the only one I have found on the market is called Oracal. Probably it is just a brand name. O...
by chrislandy
Mon Dec 21, 2015 3:21 am
Forum: Ski/Snowboard Design and Layup
Topic: Wood topsheet - best way to protect from the elements
Replies: 27
Views: 16103

Durepox clear 2k polyurethane topcoat. It's a special marine finish. Flexible, durable, only downside really is that it's reasonably expensive and you need a proper spray booth and protective equipment etc to use it. You may be able to apply it by brush so that would get past a lot of the issues. I ...