Ski Builders Forum

I GOT THIS SHIT!

Are you noticing the dimples AFTER you clean and tap the inserts? If so, you are getting too aggressive with the tap. Do it finger tight only, then STOP. i did this an embarassing number of times before i figured it out, and was the source of many screams of rage and tears (of frustration).

If this is the case, you are not using a blind tap, or maybe you just need to grind off the nose off your exisitng tap to be extra safe.

I really hope this is it. let usk now.

...er...do you mean dimples or pimples? if dimples, ignore my ealrier post.

I;ll leave it up in case it helps someone.......

I think they mean dimples where the base gets sucked in, but yes I've tapped too far and poked through the bottom of my inserts before too

Just a follow up question. I have tapped one insert too far also. Just not thinking it through. My question is this. Why are you tapping the inserts? I had to tap mine because there were no threads in the insert to begin with. Couldn't tell because of the seal in place. So are you having the same problem or are your inserts blank to begin with?
Thanks,
ra

The ones I buy (from the SkiBuilders store) are already tapped. Only reason I was running a tap through mine was to clean up the threads. I drilled them open through the top sheet, and then used a counter-sink bit to put a chamfer around the hole, but went a bit too far with the counter-sink bit and chewed up some threads. Normally if I'm easy with drilling them open, just a quick blast of compressed air to clean out the fiberglass dust and they're good to go.

It's just QC.

we use taps because sometimes epoxy will seep thru the insert caps.
This happens to us because of heat and the caps start curling and lifting, though the chinese insert caps seem to hold better than the camax ones.

Anyway what was said about tapping is right on.

Best is to check it on a known good insert on your ski/board... one that's already clean. Put the tap in and count how many turns/half turns whatever, and dont go beyond how much you had to turn it into your reference insert.

Even self bottoming taps will dent a base if you push too hard. They'll also snap, get a good tap extractor!!

But no this is not binding suck, its kind of the opposite.

Nice one nii.

I've not being using inserts, but I suspect the following is true? It's not the just about the fibre reinforcement, but the core material too. Compare aspen and bamboo and the same insert is going to compress the softer material more. The fibre won't stop the insert being pulled through softer material, it will slow its progress and raise the level of the load needed to avoid catastrophic failure.

Heat treatment of the core is likely to slow the progress of the t-nut. A t-nut with a larger base is always going to help when using softer core materials.