Wolf,
Yes, a limited number are again available.
13 and 18 mm mandrels included.
$500 plus $20 shipping.
I expect a limited number of 24 mm mandrels should be available shortly for an additional $45.
If you are interested PM me through here.
From the Facebook post:
A limited number of Harrison Competition Fin Jigs are again available and Dan has added even more improvements to this version. Because of the expense and difficulty making these it is unlikely that more will be made after this batch.
Simply put, the Harrison Fin Jig is the very best model rocketry fin jig you can buy. Nothing else on the market even comes close. Although you can put fins on an Estes Alpha with it, that is not what it was designed for. This fin jig is a piece of ultra-high-precision equipment for completely controlling all degrees of fin placement. It allows for very simple, precise, absolutely repeatable fin placement capable of allowing world class competition modelers to compete with the best in the world.
This jig is expensive, and most of you do not need it. But for those who do it is worth every penny. It is simply not possible to achieve this degree of completely repeatable precision fin placement with anything else.
For many years world class competition fliers used a fin jig designed and built by Art Rose :
http://www.hightechrocketry.com/FinJig.html
Art was a U.S. and International medal winning competitor who also happened to be a really talented machinist. For years Art made his fin jigs available and they were highly prized by U.S. and International competitors. In fact, they are so highly prized that you never see one offered for sale on eBay or anywhere else.
But when Art passed away years ago his fin jigs became completely unavailable.
Then Dan Harrison's son started competing and Dan is a machinist. So Dan borrowed one of Art’s fin jigs and created his own version.
These competition level fin jigs are very similar to the original with some new features added. Art’s original jigs had preset hole locations for 3-finned rockets. Dan added additional holes to allow absolutely precise fin placement for 4-finned rockets as well. There is also a dial on the end of the rotation wheel to allow precise fin placement for any number of fins to within 1 degree of whatever you desire. In addition, Dan had all the aluminum hardware anodized blue (both for part protection and because it just really looks cool, LOL).
Dan's latest version includes even more precise platen placement for different fin thicknesses. A single revolution of the platen adjustment knob, now with a rotation marker, results in exactly 1/32" movement of the platen.
As I said at the outset, this is simply the highest precision model rocketry fin placement jig that you can buy. Nothing else on the market even comes close.
The current version of the Harrison Fin Jig comes with mandrels for 13mm and 18mm tube sizes (BT-5, BT-20). If you would like, for an extra fee, Dan may also be able to make other sized mandrels for you.
It also comes with Allen keys for the mandrels and platen lock adjustment.
A great rocketeer once said “straight fins are good. Straighter fins are better. Straightest fins are best. For sport rockets fin placement is important. For competition rockets, fin placement is crucial.”
Even if you are not a competition flier, if you want the very best fin placement possible, this is the tool you need to own.
The price for the current version is $500 plus $20 shipping. If you are interested, or have questions, please PM here.