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F-Clamp

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Project by ryno101 posted 06-22-2010 07:33 PM 8169 views 38 times favorited 16 comments Add to Favorites Watch

Needed a couple more clamps, here’s the prototype… All oak, saw the clamps that dakremer had made

I got around the “walking” issue by making the pad two pieces, each of which has a shallow mortise drilled into the center to fit around the “T” section of the T-Bolt. The handle is epoxied to the bolt, and it’s threaded through a t-nut. Works well thus far, we’ll see how the epoxy stands up to some pressure.

-- Ryno





16 comments so far

View PurpLev's profile

PurpLev

8476 posts in 2392 days


#1 posted 06-22-2010 07:56 PM

very cool. I think those should do very well.

speaking of clamps…. ;)

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View cdbridge39's profile

cdbridge39

154 posts in 1668 days


#2 posted 06-22-2010 08:41 PM

awesome, you inspired me to try to build one !

-- If it ain't broke don't fix it, if you fix it make it better than it has to be.

View Div's profile

Div

1653 posts in 1684 days


#3 posted 06-22-2010 09:00 PM

Nice idea. Similar to my cam clamps in build but more powerful. I like.

-- Div @ the bottom end of Africa. "A woodworker's sharpest tool should be his mind."

View a1Jim's profile

a1Jim

112806 posts in 2321 days


#4 posted 06-22-2010 09:04 PM

It will be interesting to see how they hold up. but cool idea

-- http://artisticwoodstudio.com Custom furniture

View Knothead62's profile

Knothead62

2364 posts in 1705 days


#5 posted 06-22-2010 09:05 PM

Good idea! Could we get some more photos that show some more detail? Thanks!

View Joe Watson's profile

Joe Watson

315 posts in 2290 days


#6 posted 06-23-2010 01:51 AM

i’d like to see more pictures as well. your clamp looks great.

-- Got Wood?

View NormG's profile

NormG

4507 posts in 1748 days


#7 posted 06-23-2010 02:14 AM

great idea

-- Norman

View dakremer's profile

dakremer

2492 posts in 1835 days


#8 posted 06-23-2010 05:37 AM

very awesome clamps!!!! that is a great idea for the pads, did is solve that “walking” problem??!! I haven’t made any new clamps since that first one I posted (I just haven’t had time) – mine worked OK but not the best because of the pad not working very great and I think i had the angle of the movable jaw a little too large so my clamp always lost its grip. Your clamp looks really nice – is it clamping down really nice, etc??? Very cool

-- Hey you dang woodchucks, quit chucking my wood!!!!

View Ken90712's profile

Ken90712

15304 posts in 1933 days


#9 posted 06-23-2010 10:44 AM

Well done!

-- Ken, "Everyday above ground is a good day!"

View ryno101's profile

ryno101

380 posts in 2408 days


#10 posted 06-23-2010 04:56 PM

OK… better than pictures? here’s the Sketchup model I made, or at least a pic of it.

and

-- Ryno

View Kent Shepherd's profile

Kent Shepherd

2698 posts in 2030 days


#11 posted 06-23-2010 07:08 PM

Nice design. I’m anxious to see how they hold up.

-- She thought I hung the moon--now she just thinks I did it wrong

View OttoH's profile

OttoH

884 posts in 1754 days


#12 posted 06-23-2010 07:13 PM

Nice, Simple, Functional, and Good Looking who could ask for anyting more?

-- I am responsible for how I respond to everything in my life - - Deadwood SD

View ryno101's profile

ryno101

380 posts in 2408 days


#13 posted 06-23-2010 08:09 PM

in looking more closely at the diagram, I realize it should be put together in reverse, like this:

When the pressure is applied, having it this way locks the clamp head against the bar. Sorry for the early confusion!

-- Ryno

View PurpLev's profile

PurpLev

8476 posts in 2392 days


#14 posted 06-23-2010 08:32 PM

FYI, another tip for longevity: it seems from the pics that the T-nut is installed on the outer side of the moveable face where physically it should last longer and have less stress on it if installed on the inside of the moveable face (on the pad side as opposed to on the star handle/nut side). As the forces of the clamping are acting on the bolt, the bolt is being pushed towards the handle side, if the T-nut is on that side, all that is really holding it is the threading and the glue, whereas if it’s on the inside of the face, what’s really holding it is the backing of the actual clamp face, and not really the threading nor the glue – which in the long run keep it from coming loose, or having a glue failure.

not neat-picking – just another thought ;)

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View dakremer's profile

dakremer

2492 posts in 1835 days


#15 posted 08-27-2010 02:36 AM

hey, how are your clamps holding up?

-- Hey you dang woodchucks, quit chucking my wood!!!!

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