finger joint jig

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Project by BrokenArrow posted 08-08-2014 01:31 AM 2631 views 2 times favorited 4 comments Add to Favorites Watch

Saw this jig on a post from horky. First attempt on the fingers was not as successful has i hoped. I made them from mdf and could not keep them from flexing. Had a machinist friend make a set from aluminum. Have yet to try the new fingers. Rest of the jig was made similar to horky’s. Mostly mdf with a piece of t track.

-- To each his own.......

4 comments so far

View robscastle's profile


7194 posts in 2974 days

#1 posted 08-09-2014 05:43 AM

An interesting piece of engineering.

I took a look at horky’s design after reading that you were experiencing finger flexing with your MDF.

From what I can see it looks like horky built his with HDF, High Density Fiberboard not MDF.( Mediun)

All my templates if I use a composition material are HDF simply because of its higher density characteristic and it is more stable.

Harder to work but does not produce the characteristic fur of MDF.

So as I did not see your original template this may be the cause of result you got.

You certainly will not have any problems with the template now.

-- Regards Rob

View BrokenArrow's profile


41 posts in 2213 days

#2 posted 08-10-2014 12:31 AM

I went back and looked at his a little closer and see what you are talking about. Never knew that there was a hdf. That was probably why the other fingers didn’t work out so well. Thanks for the info. Will put that to good use the next time around.

-- To each his own.......

View htl's profile


5118 posts in 1930 days

#3 posted 03-04-2016 04:02 PM

Can you say HEAVY DUTY, if that won’t get er done nothing will.
Great work.

-- An Index Of My Model making Blogs

View helluvawreck's profile


32122 posts in 3637 days

#4 posted 08-17-2017 03:26 PM

That should make a nice jig. It should be a very nice addition to your shop.

helluvawreck aka Charles

-- helluvawreck aka Charles,

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