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Ever see an automated table saw fence?

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Forum topic by JeffTheRipper posted 05-26-2018 01:13 AM 2561 views 0 times favorited 48 replies Add to Favorites Watch
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JeffTheRipper

9 posts in 199 days


05-26-2018 01:13 AM

Topic tags/keywords: tablesaw cnc automated fence tablesaw fence robot tiger stop

Hey guys!

Over the last several years I’ve been working on a pet project of mine: an automated table saw fence. I do a lot of high end cabinetry work and just got tired of messing with a fence all day. Tap a little to left, now to the right, no too far, back to the left, you know the drill.

So anyway I set out to build a table saw fence that could be controlled with a keypad, could self calibrate by touching the blade, and then lock on its own when it goes to the desired width. I called it Pick-it Fence.

I designed it to fit on a Biesemeyer rail just in case I wanted to switch back. Plus I didn’t want to have to drill into the table saw and deal with the hassle of fixing another rail to it so I just welded a pinion rack underneath the existing rail. I had thought about using a worm drive design but after some research I settled on rack and pinion.

After I settled on drive system I started messing with machine control. I retro fitted a keypad and relabeled the buttons then hooked it up to a seven segment display.

Of course then I needed to add some motor control:

Then I created a floating ground to make a connection to the saw blade and “zero out”. On the side of the body are two flush screws that ground when they touch the blade.

I used it for a few years hoping to productize it but then the recession hit and that put me back for a few years. Fast forward to 2017 and I reached out to a product design company to fully develop it into a product. I didn’t have any CAD or documentation so they pretty much redesigned the whole thing, keeping the core features the same. They kinda went all out lol:

We changed the name and did some rebranding, changed the name to Rip-it, and now we’re launching on Kickstarter! Sorry I don’t mean to be spammy. I’m just really excited about bringing Rip-it to life and wanted to see what you guys thought! You can see a video of it in action here:

https://www.youtube.com/watch?v=-mRGMfNl9jI


48 replies so far

View htl's profile

htl

4230 posts in 1357 days


#1 posted 05-26-2018 01:34 AM

Very interesting project and soon to be product.

-- An Index Of My Model making Blogs http://lumberjocks.com/htl/blog/116729

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trevor7428

266 posts in 1158 days


#2 posted 05-26-2018 01:40 AM

Pretty nifty, so you have the kickstarter link

-- Thank You Trevor OBrion

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Runner

76 posts in 971 days


#3 posted 05-26-2018 01:44 AM

Very cool. Post your Kickstarter link when you have it up and running.

-- Kjell - Eau Claire WI

View JeffTheRipper's profile

JeffTheRipper

9 posts in 199 days


#4 posted 05-26-2018 02:18 AM

Thanks y’all!

The project goes live at 10AM PST on May 29th. A preview link is here:

https://www.kickstarter.com/projects/850138295/921525147?ref=491078&token=1e698aaf

I’ll be sure to post another link when it goes live. I’m not sure if this link would still work.

There’s more info on my site rip-itfence.com

View KTNC's profile

KTNC

89 posts in 454 days


#5 posted 05-26-2018 02:19 AM

Congrats! Nice video too.

View hkmiller's profile

hkmiller

108 posts in 279 days


#6 posted 05-26-2018 02:35 AM

Very cool product. What is your projected sales price?

-- always something

View JeffTheRipper's profile

JeffTheRipper

9 posts in 199 days


#7 posted 05-26-2018 02:40 AM

Thanks, KTNC! The video was product in and of itself.

Thanks, hkmiller. Starting May 29th we’ll be selling it for $799. The first 15 orders get it for $499!

View johnstoneb's profile

johnstoneb

3054 posts in 2370 days


#8 posted 05-26-2018 02:52 AM

Looks like a solution in search of a problem. I have my fence and rule adjusted when I put it on the measurement and lock it down it is there. Enjoy it while you work it.

-- Bruce, Boise, ID

View GR8HUNTER's profile

GR8HUNTER

5099 posts in 910 days


#9 posted 05-26-2018 02:55 AM

something else thats nice that I cant afford :<((((((

-- Tony---- Reinholds,Pa.------ REMEMBER TO ALWAYS HAVE FUN

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waho6o9

8516 posts in 2775 days


#10 posted 05-26-2018 03:15 AM

Good luck on your great product and may you have good fortune going forward!

View oldnovice's profile

oldnovice

7321 posts in 3565 days


#11 posted 05-26-2018 03:56 AM

It’s about time!
This was going to happen sooner or later!

-- "I never met a board I didn't like!"

View JeffTheRipper's profile

JeffTheRipper

9 posts in 199 days


#12 posted 05-26-2018 04:36 AM

@oldnovice Haha yes I’ve been sitting on this for awhile. I actually have the original patent on this and I think that’s what’s kept some people at bay. https://patents.google.com/patent/US5524514A/en
Although the design has changed, it’s still fully patented!

@wanho609 Thank you! Please spread the word!

@gr8hunter Rip-it actually does save you money if you run a professional shop. We did an independent time study and this is 6x faster than a standard fence.

@johnstoneb For me the time savings is what really does it. It’s personally saved me hours and allowed me to get projects done a lot faster with less headache and rework. I’d be grabbing the next piece of wood while Rip-it was moving to its width and it was locked in by the time I was ready to cut.

View NormG's profile

NormG

6283 posts in 3201 days


#13 posted 05-26-2018 05:39 AM

Well done, great idea

-- Norman - I never never make a mistake, I just change the design.

View JAAune's profile

JAAune

1850 posts in 2514 days


#14 posted 05-26-2018 06:34 AM

Can it come off the rail easily? Since my saw is a slider with a Biesemeyer, I often remove the fence if I want to place long panels on the crosscut table.

-- See my work at http://remmertstudios.com and http://altaredesign.com

View Craftsman on the lake's profile

Craftsman on the lake

2831 posts in 3635 days


#15 posted 05-26-2018 10:30 AM

Hmmm…. I love gadgets and appreciate the engineering that went into this. It is cool. I’m just wondering if it’s all that useful. Looks like the video has it on a Sawstop?? My stock Sawstop fence, once calibrated, is dead on. The little magnifier bubble on the rail rule is easy to set and gives consistent cuts each time. It’s really not a problem to set and takes seconds. Like someone said before, I wonder if this is a solution in search of a problem?

Either way, I hope I’m wrong and you do well with it. And… it is a way cool mechanism.

-- The smell of wood, coffee in the cup, the wife let's me do my thing, the lake is peaceful.

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