Protected: Redfield Scope

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Yakima – Reverse engineering of 15mm Fork Adapter

I reverse engineered this product by Yakima when I finished building my new mountain bike and realized the 15mm thru axle front fork was not compatible with the existing 9mm quick release based Yakima Viper car roof rack.  I promptly ordered the Yakima HighRoller off Promotive but in the meantime I used my prototype that I made based off caliper measurements of my viper rack and pictures I found on Yakima’s website.

Here's the Yakima 15mm Fork Adapter (MSRP $49)

Here is my prototype. This was designed in SolidWorks and created with an Objet. This prototype withstood highway forces with a 30Lb mountain bike for 50-60 miles during the week my HighRoller was on order.

Protected: MCR – Prototype I

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Protected: MCR – Reverse engineering of existing design

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Protected: Leupold – VXSS 12-40x60mm Spotter

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Leupold – UltimateSlam 2-7x33mm Riflescope

This was my 3rd project I worked on at Leupold; the UltimateSlam rifle scopes in both 2-7x33mm and 3-9x40mm; matte and silver (MSRP $250).  This product contained the trademark SA.B.R reticle (SAbot Ballistics Reticle) which provides precise and distinct hold points for 50, 100, 150, 200, 250, and 300 yards, accurately with sabots containing 2-pellet or 3-pellet loads and 12 guage or 20 gauge shotgun loads.  The center ring and each aiming point subtends 3″ at the intended range.

This is my SolidWorks model of the silver 2-7x33mm with the SA.B.R. reticle depicted.

Accuracy comparison against competitor.

Leupold – Rifleman 3-9x40mm Riflescope

Rifleman 3-9x40mm riflescope (MSRP $200).  1/2-MOA incremental adjustment.  Duplex reticle.  Also did the 2-7x33mm model.  Model shown below is the QDMA version (you can see the QDMA logo lased on the turret)

This is my SolidWorks model of the matte 3-9x40mm.