New Project - Lokbox to Probox Retrofit

I have a 7’5 Wayne Lynch Evolution that I’ve decided to modify from the current 2+1 setup with Lokbox side bites to a Quad using the Probox system without compromising the current 2+1 setup. I am going to document the process as this project progresses.

First we have the board:

Here is the fin setup with the fins installed:

Then with the fins removed and getting ready to determine how the retrofit is going to happen:



It was determined that the Probox will basically fit inside of the Lokbox. The plan then was to route out part of the Lokbox and install the Probox directly into the Lokbox. The added bonus is the entire Lokbox does not have to be removed and the existing hole filled before installing the Probox.

Then the Lokbox is made ready for routing:

Next, the threaded screw hole in the Lokbox was drilled out:



After the screw hole was drilled, then its time to go to town with the router:

Once both Lokboxes are routed to fit the Probox, the boxes are prepped for the installation of the Probox directly into the Lokbox:

All that is left is to pour the resin and install. Once these two Proboxes are installed they will form the two rear fins of the quad setup. Then two more Proboxes will be installed forward of the newly married Pro-Lokboxes


Cool.

You can name your new boxes LokPro…or Prolok.

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All that is left is to pour the resin and install. Once these two Proboxes are installed they will form the two rear fins of the quad setup. Then two more Proboxes will be installed forward of the newly married Pro-Lokboxes

More forward?? you mean backward?

Or do you want a bonzer? (not a quad)

I really like your use of putty to keep a good seal on the inserts.

More forward?? you mean backward?

Or do you want a bonzer? (not a quad)

That’s what conventional wisdom would probably think. However, the fins that will be used allow for a more forward placement.

Putting the rear fins way back on the tail makes it too much like a thruster.

Anyways, if it turns out they are too far forward, I can always put another set of boxes further back.

I am curious, why didn’t you just add two new Lokbox?

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I am curious, why didn’t you just add two new Lokbox?

Why?

Because (1) I like the ability to adjust the cant (2) wider fin selection - Probox, FCS and Futures (3)I’ve got other boards with Probox so I can interchange my Probox fins and (4) just for no other good reason than to experiment.

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I am curious, why didn’t you just add two new Lokbox?

Why?

Because (1) I like the ability to adjust the cant (2) wider fin selection - Probox, FCS and Futures (3)I’ve got other boards with Probox so I can interchange my Probox fins and (4) just for no other good reason than to experiment.

And (5) The Irritation factor. This must be driving the Lockbox guys nuts?

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I am curious, why didn’t you just add two new Lokbox?

Why?

Because (1) I like the ability to adjust the cant (2) wider fin selection - Probox, FCS and Futures (3)I’ve got other boards with Probox so I can interchange my Probox fins and (4) just for no other good reason than to experiment.

And (5) The Irritation factor. This must be driving the Lockbox guys nuts?

Actually what drove me nuts today was that come back by the giants!! What a game!

Giants come back?? Heck, they kicked the Patriots ass all day. What a game!!

Looking good larry I can’t wait to get started on my own board. Thank you for the fins very nice by the way, could you show measurements of the fin placement as well tail size on the 7’5" Wayne Lynch and what size center fin is being used.

Thank you

Alright, I got a cheap and light panel router and tried to route through a probox center box, so I could place

a new one 1/2" further toward the tail.

I used the probox supplied router bit, which I am guessing may not be perfectly suitable for routing through

the older probox box. Anyhow, my router was very jumpy at times and I ended up routing through all four jigs

and essentially horrendously botching the job.

Understandably a bit more acquired talent and savvy would probably have helped.

So here is my question.

Would a heavier plunge router be more suitable for routing through old boxes?

and would a smaller bit make it less jumpy for routing through the old probox plastic.

Also I need to buy more jigs, with my history I should start afresh with 8 of em.

Can I order jigs without a router bit from somewhere?

Hi Otis, You are right a trim router is hard to handle especially going thru a tough material like our ProBox. A plunge router is better. Just a note for the future if you want to move your position a 1/2"forward or back beyond the box adjustment, this can be done without moving the box. Just make different fins with the BASE TABS in a different spot to your liking, this is alot easier than moving the ProBox. Call me at the Factory 310-530-1383 and I will help you take care of your problem. Mahalo,Larry

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Hi Otis, You are right a trim router is hard to handle especially going thru a tough material like our ProBox. A plunge router is better. Just a note for the future if you want to move your position a 1/2"forward or back beyond the box adjustment, this can be done without moving the box. Just make different fins with the BASE TABS in a different spot to your liking, this is alot easier than moving the ProBox. Call me at the Factory 310-530-1383 and I will help you take care of your problem. Mahalo,Larry

Thanks for the one on one router help Larry.

All is good.

I route my proboxes with a HF trim router no problem. If you’re chewing up your jigs, it’s because you don’t have the depth adjusted accurately. The website has depth info, i forget right now…but it needs to be spot on.

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Looking good larry I can’t wait to get started on my own board. Thank you for the fins very nice by the way, could you show measurements of the fin placement as well tail size on the 7’5" Wayne Lynch and what size center fin is being used.

Thank you

Hi Onesoulone, Sorry for over looking your question. I will pencil down measurements on Wayne Lynch board and take a pic which feralseppo will post for your viewing. Thank you for asking the question. Mahalo,Larry

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what size center fin is being used.

Thank you

Onesoulone,

If you are asking about the fins that are in the photos, I believe the center fin is a 6.25" and the sides are 4.75."

I have a set of Robin’s (aka Handshaper) thumb fins on my 9’1" gun that he shaped, which I am going to try out when the board is finished. You can see them here: http://www.proboxfinsystems.com/pages/fins/fins_page5.html

The thumbs I have are 4.75" sides and a 6.5" center.

I think the quad fins that we are going to go with are the HFQuadWS fins: http://www.proboxfinsystems.com/pages/fins/fins_page4.html

Here are some shots of the finished install of the Probox into the Lokbox