Clamping core material down in router jig.

[PowderKing]

Hey,

I've been having some problems lately with my new router jig.
The jig it self is working completely fine, but the problem is that I can't think of a good way to make sure the core blank is completely laying flat.
Screws are no option, as they would create holes in my core.
How do you guys clamp your core blanks down in your router jig?

Cheers!

[sammer]

Lots of hot glue around the perimeter of your core.

Hold your core or clamp it until the glue sets.
Use lots around the tip and tails
It should come off pretty easy when your done.
I use a sharp chisel to cut the glue (and core) from the bench, use a bit of caution when working around thin tip and tail and you should be alright.

sam

[threeninethree]

You could leave some extra on each end that does not get shaped with threaded inserts in the jig that you could screw down the core with.

or use nylon screws into inserts in the jig that can be routed.

or make some shopvac vacuum jerry rig.

[skidesmond]

I use 4-5 spring clamps and move them when I need to run the router in that spot then put the clamp back.

[rsotak]

I use strong double sided carpet tape for my planer set-up. Its strong enough to not get any chattering at the tips/tails but you can pry it off with a scraper blade afterwards. Its pretty cheap as well

[mikic1]

I vacuum it.

I took a MDF slightly larger then the ski.

Drill a hole thru in the midle, or several palces, and here you connect the vacuum cleaner/pump. If vacuum cleaner, make sure there is a hole somewhere so it does not get overloaded.

Then rout channels on the top of the mdf under the ski area. these are used as suction channels and keep it down rather nicely and is very simple.

Cheers

[twizzstyle]

What I've been doing lately on my CNC router when I can't clamp using my normal machinist clamps, is I put masking tape (or more recently I got a wide roll of vinyl application tape) on the bottom of whatever I'm machining (cores, sidewalls, or bases for the drag knife), and then I use spray glue to glue it to a flat piece of MDF (in this case your jig).

The application tape ensures I don't get the nasty spray glue on the core/base at all.

[gerryrig]

OK, what am I doing wrong. My photo won't post.

[troublemaker]

[gerryrig]

I'm not seeing this.
https://picasaweb.google.com/lh/photo/W ... directlink

https://picasaweb.google.com/lh/photo/u ... directlink

Ok now it is working.

So these are links to my profile table with vacume set up.

[troublemaker]

Not seeing how to do a clickable link or not seeing the picture when you click on the link?

Put a space after "IMG" then copy and paste the link.

[gerryrig]

How about now?

[twizzstyle]

Your link has to end in ".jpg"



Right click on the picture, and go to properties, or copy image address, etc. Depends on your browser, but you need the direct image link, not just the site with the picture on it.

[gerryrig]

Twizzzstyle, Troublemaker,

Thanks for the help.

So, two photos of my profile table with vacume setup.

[sammer]

A little hint if I may ...
before you "submit" your post, "preview" it, then you can check to see if your links, pics, spelling, etc. work or not.
Saves you a bit of time and in trying to get it to work you'll learn how the whole system works.



sam