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Weinig "CombiHead" or equivalent

5/11/16       
David Waldmann  Member

Website: vermonthardwoods.com

We've been doing more items with a beaded edge, some with a bead on both edges. One edge is easy to make multiple sizes, but to do both sides we've been making specific corrugated back sets of knives for each size.

With a new batch of items coming in I've been thinking about the CombiHead idea. It would be a little more expensive than getting individual knives made for this order, but we'd be able to do just about any width in the future, as well as having the ability to do other bead shapes/sizes and other details with very little additional expense.

My question is, has anyone used one of these types of heads and how well do they work? Mostly related to aligning the inserts so they are in line with each other and the right distance apart in the same slot. We do have an OptiControl measuring stand which I could envision using for that, but not sure how well it would work.

Any feedback? Or suggestions for other maker's similar product? I'm guessing maybe Weinig doesn't actually make the head, but maybe they do.


View larger image

Weinig Combi-Head

5/12/16       #2: Weinig "CombiHead" or equ ...
Russ

Website: http://www.mr-moulding-knives.com

Dave
Here are a couple of drawings of the the profile I was talking about over the phone.
This design was made for a six spindle two top head moulder to save on knife steel.
The key is to have the same height of both the templates, the blend area on the detail only knife is taken from the standard 60mm layout line.
You would take the detail only knife, flip it over and referance left on your grinder making just the detail only.
You can make the entire profile (whatever size maximum is needed).
In two pockets of a four wing cutter head place the whole profile.
In the other two pockets place just the detail only with a piece of filler stock and adjust to whatever width you desire simply by sliding the detail only knife into position.
You have to grind both sets at the same time using the height of the template to ensure you have identical tool dimensions when finished.
Just a thought, a little more work but solves the issue at hand.
All the best Dave
Love all your post!
Russ


Click the link below to download the file included with this post.

BASE_6P000_107.pdf



Click the link below to download the file included with this post.

BASE_6P000_107a.pdf

5/12/16       #3: Weinig "CombiHead" or equ ...
David Waldmann  Member

Website: vermonthardwoods.com

Russ,

Thanks - I appreciate the info. Pretty much the same concept as the CombiHead without the additional expense. Like you said, a little more work but for our application I think it will be worth it. Will discuss with my moulder guy and see what we can do.

Best,

5/12/16       #4: Weinig "CombiHead" or equ ...
Russ

Dave
Glad I could offer a solution without spending more money.

One thing I forgot that is important, the hook angles should probably be the same in all four pockets on the cutter head for accuracy in the way the knife cuts the wood (I know you knew that, just for others who may try a similar solution).

Russ

5/14/16       #5: Weinig "CombiHead" or equ ...
Joe Calhoon

David,
We have a Martin T90 that uses a similar system. This machine is a different animal in that it has fixed Tersa heads with inserts for moulding cutters. Its more of a S4S machine with some moulding capacity.
It is less than a 5 minute setup for any beading, T&G, rounding, back out etc.

The horizontal head uses a simple magnetized setting gauge for the inserts shown in the pictures. The vertical head uses a similar device with a vernier scale. (not shown)

I have heard Leitz now makes a similar head for molders.


View higher quality, full size image (1224 X 1632)


View higher quality, full size image (1224 X 1632)


View higher quality, full size image (1224 X 1632)

5/14/16       #6: Weinig "CombiHead" or equ ...
David Waldmann

Thanks Joe. Looks interesting. For both the Combi and the one you show I can them being really applicable when doing a lot of that type of stuff. I think for our much more limited needs that the idea Russ suggested may be more in line.
Thanks again.


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