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4" Combination Saddle Square

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Project by DevinT posted 07-04-2021 05:39 PM 1007 views 0 times favorited 20 comments Add to Favorites Watch

I needed a sanding block with a specific design feature. It had to form a right angle and have a relief in the corner to allow swarf to gather. The specific purpose is for sanding and polishing the edges of stock (wood, metal, plastic).

I decided to put a ruler on the fence to make it more useful. I routed the numbers on the ruler backwards so they would appear correct when viewed through the clear surface from above. There is no concern over parallax when taking measurements because the markings are on the side that makes contact with the surface you are measuring.

I put a decorative scroll under the handle which doubles as a center-mark (“X” marks the center) on the handle face.

The width of 4” was chosen so that it can accommodate a full-width strip of sandpaper. I can get about 18 such strips out of a full-length sheet of sandpaper.

Last, but not least, it also works as a saddle square for scribing a line from one surface to an adjacent one.

Made out of plexiglass (chemcast acrylic) and accented with Restoleum glossy black enamel paint for easy reading.

The whole thing cost about 10 cents to make.

Enlarged photos:

-- Devin, SF, CA





20 comments so far

View EarlS's profile

EarlS

4748 posts in 3586 days


#1 posted 07-04-2021 06:08 PM

Very clever!!
Watch out though – the next Woodpeckers one time tool or Rockler special tool will look remarkably similar to what you made.

-- Earl "I'm a pessamist - generally that increases the chance that things will turn out better than expected"

View DevinT's profile

DevinT

1883 posts in 204 days


#2 posted 07-04-2021 06:22 PM

We will see. I have decided to call this thing a “sandal square” (sanding block + saddle square = sandal square)

-- Devin, SF, CA

View MikeB_UK's profile

MikeB_UK

693 posts in 2272 days


#3 posted 07-04-2021 06:31 PM

Looks good, how do you lock the sandpaper in place?

-- Be yourself; everyone else is already taken.

View pottz's profile (online now)

pottz

20567 posts in 2222 days


#4 posted 07-04-2021 06:41 PM

sweet little tool dt your always creating the coolest things.but wheres the power cord ? ;-)

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

View DevinT's profile

DevinT

1883 posts in 204 days


#5 posted 07-04-2021 06:44 PM



Looks good, how do you lock the sandpaper in place?

- MikeB_UK

A little double-stick tape is all. I’ll throw a piece on later today for demonstration.

-- Devin, SF, CA

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DevinT

1883 posts in 204 days


#6 posted 07-04-2021 06:44 PM



sweet little tool dt your always creating the coolest things.but wheres the power cord ? ;-)

- pottz

LoL

-- Devin, SF, CA

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DevinT

1883 posts in 204 days


#7 posted 07-04-2021 06:54 PM

I put a strip of sandpaper on it to demonstrate its use as a sanding block:

-- Devin, SF, CA

View sras's profile

sras

6345 posts in 4367 days


#8 posted 07-04-2021 06:55 PM

Very nice!

-- Steve - Impatience is Expensive

View pottz's profile (online now)

pottz

20567 posts in 2222 days


#9 posted 07-04-2021 07:25 PM

so how about a line of devinT limited addition tools like woodpecker does ?

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

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DevinT

1883 posts in 204 days


#10 posted 07-04-2021 07:29 PM

I’m shooting more for Mirock’s style

-- Devin, SF, CA

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DevinT

1883 posts in 204 days


#11 posted 07-04-2021 07:30 PM

I’m closing in on 30 router bits and will start working in Brass and brass inlays in a few months.

-- Devin, SF, CA

View MikeB_UK's profile

MikeB_UK

693 posts in 2272 days


#12 posted 07-04-2021 08:43 PM


Looks good, how do you lock the sandpaper in place?

- MikeB_UK
A little double-stick tape is all. I’ll throw a piece on later today for demonstration.
- DevinT


Ah, thought you’d have fashioned some kind of clamp on the sides to save scraping off the gummy stuff.
Not sure I see the advantage over just using a sanding block, but you tend to go for a lot more precision than I do.

Kind of jealous you can knock out precision plexiglass though.

-- Be yourself; everyone else is already taken.

View splintergroup's profile

splintergroup

5843 posts in 2460 days


#13 posted 07-04-2021 09:11 PM

Functional art!

I have something similar in my sanding “toolkit”. Basically a 1-1/2” piece of Al. angle with some drawer guide tape for the rubbin’ surface and same DS tape method for my collection of sanding strip rolls. No swarf gap or any other trick features (really dig the handle!)

Exceptional craftsmanship and design as always!

View Eric's profile

Eric

1892 posts in 1111 days


#14 posted 07-04-2021 11:11 PM

You come up with some great ideas, and I see you are putting much thought into them. Neat little item you have there.

Before to long you will be in business for yourself, sending your ideas all over the world.

-- Eric, building the dream

View Dave Polaschek's profile

Dave Polaschek

8408 posts in 1820 days


#15 posted 07-05-2021 12:08 AM

Huh! Neat! Looks like you use it where I’d use a shooting board and a plane, but yours was a wee bit cheaper. ;-)

-- Dave - Santa Fe

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