Blackmore

Document your personal work here. Show photos, movies, and share your secrets.

Moderators: Head Monkey, kelvin, bigKam, skidesmond, chrismp

bishop119
Posts: 15
Joined: Mon Feb 03, 2020 2:46 pm
Location: Bozeman, MT

Re: Blackmore

Post by bishop119 »

image15.jpeg
image15.jpeg (94.92 KiB) Viewed 294 times
image16.jpeg
image16.jpeg (66.8 KiB) Viewed 294 times
image17.jpeg
image17.jpeg (93.38 KiB) Viewed 294 times
image18.jpeg
image18.jpeg (92.08 KiB) Viewed 294 times

BS Tech
Posts: 5
Joined: Wed Nov 06, 2019 12:41 pm

Re: Blackmore

Post by BS Tech »

Maybe its just the picture... but that base looks really shiny! Is that the abraded side?

bishop119
Posts: 15
Joined: Mon Feb 03, 2020 2:46 pm
Location: Bozeman, MT

Re: Blackmore

Post by bishop119 »

BS Tech wrote:
Mon Jun 01, 2020 8:19 am
Maybe its just the picture... but that base looks really shiny! Is that the abraded side?
Yeeeaaaaah so we messed that part up, the guy who has been helping me works in a ski shop is used to the more abrasive side being down for the wax and such. Either way, I didn't do enough research on base preparation so next time we are going to be better about the base prep and flame both sides.

bishop119
Posts: 15
Joined: Mon Feb 03, 2020 2:46 pm
Location: Bozeman, MT

Re: Blackmore

Post by bishop119 »

We finished our first ski today and it is obviously the first time we have done this but, we learned a lot from it. there are a few things to fix to get ready for our next layup. I'm pretty happy with the results of the first ski but its not going to last. so for our next set up we are going to change a few things.
1) We need to make the waist of the core a little slimmer so the cap can get come down to the edge better, this last one had some sections where the cap didn't come all the way down and left some core exposed when the ski was cut out of the flash. we will make a temp fix with some fast set epoxy to seal it for now.
2) I missed some steps on my base prep, I got a little complacent and thought that having the base flamed before shipment would be fine and not need more work. Our skis currently are showing signs of base delamination but that is how it goes.
3) We are going to moving to a 3/4 wrap for the edges because getting the full wrap was a bit of a pain.
4) We also need to use more mold release and might put vinyl on the bottom of the base to protect the base more from the epoxy.
5) We lost some of our camber and tip rise out of the mold, we will exaggerate the amount next time and hope we can get a system to keep what we need
This was a learning experience for sure but I am happy with the shape and flex. I think there are a lot of things we can improve upon in the next layup which is all we could ask for out of our first layup.

User avatar
vinman
Posts: 1357
Joined: Fri Nov 09, 2007 4:16 pm
Location: The tin foil isle
Contact:

Re: Blackmore

Post by vinman »

Your base delam is likely due to attaching your edges to the smooth side of the base if you did not fix that before layup. Attach your edges to abraded and flamed side of the base. Flame treating the smooth side will not work.
Fighting gravity on a daily basis
www.Whiteroomcustomskis.com

bishop119
Posts: 15
Joined: Mon Feb 03, 2020 2:46 pm
Location: Bozeman, MT

Re: Blackmore

Post by bishop119 »

vinman wrote:
Wed Jun 03, 2020 4:09 am
Your base delam is likely due to attaching your edges to the smooth side of the base if you did not fix that before layup. Attach your edges to abraded and flamed side of the base. Flame treating the smooth side will not work.
Yeah, we got that messed up for sure but I will be more mindful of which side I am attaching my edges too and I will still flame before layup and attaching the edges.

bishop119
Posts: 15
Joined: Mon Feb 03, 2020 2:46 pm
Location: Bozeman, MT

Re: Blackmore

Post by bishop119 »

With all things considered we were able to fix some of the base delam and take the skis out for a summer ski session at Beartooth Basin. They turned out better than I could of ever expected and it was alot of fun to get ride them for a day.
image0.jpeg
image0.jpeg (111.09 KiB) Viewed 186 times
IMG_0516.jpg
IMG_0516.jpg (83.32 KiB) Viewed 186 times

User avatar
Dr. Delam
Posts: 408
Joined: Thu Feb 01, 2007 10:07 am
Location: Truckee

Re: Blackmore

Post by Dr. Delam »

Nice work. Any skiing on your own skis, in June, in one of the worst years in history, is a good thing. FWIW, I have had base material wrapped up in a bag for a few years without reflaming and never had an issue with bonding.

User avatar
vinman
Posts: 1357
Joined: Fri Nov 09, 2007 4:16 pm
Location: The tin foil isle
Contact:

Re: Blackmore

Post by vinman »

I always re-flame base ands tip spacer. It may not be necessary but it is something that I have always done and will always continue to do.

If you are using UHMWPE sidewall its is absolutely necessary to abrade with an 80 grit sanding drum and flame both the top and bottom until a water drop does not bead when dropped onto the sidewall.
Fighting gravity on a daily basis
www.Whiteroomcustomskis.com

BS Tech
Posts: 5
Joined: Wed Nov 06, 2019 12:41 pm

Re: Blackmore

Post by BS Tech »

Im with the DR. on this one.
Ive never had to reflame uhmw base or tip fill either, just a good alcohol cleaning. Never had any delam issues.
But beware!!... the white polyester (without fleece backing) or clear topsheet thats been corona treated... thats got a shelf life of only about a year!
I used some that was a couple years old, no bueno!! Delam city!!

Post Reply