Search found 439 matches

by pmg
Sat Jun 27, 2020 12:24 pm
Forum: Journals: Log Your Ski Building Progress
Topic: In the press today - as Swiss as it gets :)
Replies: 36
Views: 12411

Re: In the press today - as Swiss as it gets :)

Hi, I cant recall the exact numbers, but the last one I built is pretty much this way: 130-88-118 2.5mm - 14mm - 2.5mm; mix of Poplar and Ash 0.? Wood veneer 300g/m² Uni Flax 300g/m² Triax Carbon Wood Core 300g/m² triax Carbon Definitely more than stiff enough with this setup, but I like em rather s...
by pmg
Wed May 06, 2020 10:59 am
Forum: Journals: Log Your Ski Building Progress
Topic: In the press today - as Swiss as it gets :)
Replies: 36
Views: 12411

Re: In the press today - as Swiss as it gets :)

Hi,

yes, 300g/m² on top is superior to the 120g/m² on top and bottom. also way easier to work with. The 120g/m² is a PITA to lay up, the thicker one is much better to handle.
by pmg
Tue May 05, 2020 1:58 am
Forum: Journals: Log Your Ski Building Progress
Topic: In the press today - as Swiss as it gets :)
Replies: 36
Views: 12411

Re: In the press today - as Swiss as it gets :)

Hi, just saw your questions. I re-built that ski since. 1) I didnt use any glass 2) I only used 300g/m² uni flax on top (right below the wooden veneer) as bcomp states 3) 300g/m² triax carbon as before Result: Perfect! The single layer of flax on top is great, better dampening the very springy carbo...
by pmg
Mon Jan 27, 2020 3:25 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Festool vacuumpump
Replies: 4
Views: 1530

Re: Festool vacuumpump

Hi, you could give it a try, the maximum vacuum is enough. What might be more of a problem is the little flow the pump has: only 2.7m³ per Hour. That means that your vacuum press really needs to be airtight, a little leakage anywhere would be a problem probably as the pump isnt able to "pull" enough...
by pmg
Wed Jan 15, 2020 10:39 am
Forum: Ski/Snowboard Design and Layup
Topic: Methods to keep core/ base still during press.
Replies: 34
Views: 18566

Re: Methods to keep core/ base still during press.

Sounds sensible. Different positions on left/right side will only be important in skis, not in boards.
by pmg
Wed Jan 15, 2020 10:29 am
Forum: Ski/Snowboard Design and Layup
Topic: Need help with kid snowboard
Replies: 25
Views: 4809

Re: Need help with kid snowboard

Wow, that board is really really cute! Cant wait till my dauthers are old enough to sensibly build Skis or Boards for them :)
by pmg
Thu Dec 19, 2019 3:33 pm
Forum: Ski/Snowboard Design and Layup
Topic: Methods to keep core/ base still during press.
Replies: 34
Views: 18566

Re: Methods to keep core/ base still during press.

HI fred, I have been using this method for the last 5 pairs of Skis I built and it works fine. I am on a vacuum press however, but that shouldnt change much. I screwed the spare base parts to my wooden mould, never have any base movement this way. What to think about: as the tape is on the bottom of...
by pmg
Sun Feb 04, 2018 3:55 pm
Forum: Journals: Log Your Ski Building Progress
Topic: HB (Hansen Boards) 2018
Replies: 5
Views: 3517

awesome, really love the design!
by pmg
Mon Jan 22, 2018 11:26 am
Forum: Journals: Log Your Ski Building Progress
Topic: Perennial Skis
Replies: 22
Views: 10610

Nice, if you are around we can have a GS ski day if you like!
by pmg
Mon Oct 02, 2017 9:33 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Differential heating
Replies: 8
Views: 4069

I build nearly only carbon skis (or carbon/flax mix now) and never had that issue - about 50% of the mold's camber is in the final ski. But I use a very slow curing resin to ensure even temperature when resin cures. Regarding your temperature thing: IMO the bottom should be heated more to get less c...
by pmg
Thu Aug 17, 2017 11:34 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: help choosing a vacuum for a table press
Replies: 21
Views: 8630

silicon is more than stretchy enough! Made my hollow tips with a silicone sheet, the silicone membrane moves around every uneventy easily.
by pmg
Mon Aug 14, 2017 10:16 am
Forum: Ski/Snowboard Design and Layup
Topic: Carbon and Flax Fiber Layup
Replies: 8
Views: 5007

AFAIK flax has great dampening properties, and I think dampening along the length of the ski is more important than torsional dampening, hence I use thin Uni flax and normal triax/biax carbon. I love riding the results!
by pmg
Thu Jul 20, 2017 7:34 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: help choosing a vacuum for a table press
Replies: 21
Views: 8630

Hi, post some photos of your setup and your results, that will help us help you :)
by pmg
Tue Jun 27, 2017 3:39 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Ski design mold
Replies: 2
Views: 2838

IMO this only makes sense if you build a lot of different shapes, as building this mold will take a lot of time.
by pmg
Sun May 07, 2017 6:53 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Base grinding methods?
Replies: 1
Views: 2612

Hi, 1) you will never get the base perfectly flat with a belt grinder (only possible with a stone grinder), but you can achieve very good results nevertheless. 2) The more pressure you apply, the more uneven your base will get. So I am a supporter of little pressure. Of course some pressure is neede...