CNC Clamps 2mm (0.08 Inch) to 18mm (0.7 Inch)

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Introduction: CNC Clamps 2mm (0.08 Inch) to 18mm (0.7 Inch)

Clamps for holding down your workpiece on a cnc router. The
clamps are designed for holding down materials with a thickness of 2mm to 18 mm.

I designed the clamp using Fusion 360.

There are 4 different sizes for the bolt that goes through, M5, M6 or 1/4 inch and for a special request M8 (The M8 version is not tested but should work though the sliding distance is a lot shorter).

Best is to use a washer on top.

The actual foot to hold your workpiece can rotate to adjust to the thickness of your material.

This clamp can be used on a wasteboard like this: https://www.youtube.com/watch?v=yhVW6Q9o-34 or on v-slots with an added drop in t-nut.

Supplies:

1 bolt per clamp M5, M6 or 1/4 inch also the lenght is depending on your wasteboard.
1 washer per clamp

In case of v-slots 1 drop in t-nut per clamp

Step 1: Printing the Clamp

Print the clamp on its side. Do not use support !!

Print with PETG

Use 0.15mm resolution.
Use 4 Perimeters for strenght.
Make sure your printer is setup well. The foot of the clamp can rotate and there is not much clearence between the parts.

Step 2: You Are Ready to Clamp Down Some Materials.

Have fun making !!

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    23 Discussions

    0
    Palingenesis
    Palingenesis

    Tip 1 year ago on Step 2

    Make a small modification like this and you could reduce the different sizes of clamps.
    It would keep the bolt vertical when clamping the thinner items.

    Clamp.gif
    1
    PatrickH101
    PatrickH101

    Reply 1 year ago

    Thank you for your suggestion, looks good. I will give it a try.

    0
    Palingenesis
    Palingenesis

    Reply 1 year ago

    I drew it in FreeCAD if you would like the files, I can put them in google box?

    0
    mujahedissa
    mujahedissa

    Reply 12 months ago

    Nice work, can you share it here please, thank you

    0
    BrianW335
    BrianW335

    1 year ago

    I can only use PLA, but will give it a try, thanks for your post.

    0
    PatrickH101
    PatrickH101

    Reply 1 year ago

    I think they will work fine.

    0
    DonT61
    DonT61

    Reply 1 year ago

    I printed PLA ones and when I went to move the end to swivel it they snapped the hinge section. If printed with a hole a pin can be installed for a better pivot point, guess I will drill a hole!
    Thanks for the files and effort.

    0
    BrianW335
    BrianW335

    Reply 1 year ago

    Mines broke at the hinge also. Drilling a hole and adding screw would help.

    0
    appideas
    appideas

    Reply 1 year ago

    I printed some in PLA, and they're perfectly functional. I wouldn't tweak down on them too much (which shouldn't be necessary if you use four at a time), and I would print a couple extra, expecting some to break as they will become more fragile over time/with use/under stress (all of the above).

    I'm still waiting for my ABS prints to finish, at which time I'm retiring my PLA prototypes. :-)

    Thanks again for the model! This is the clamp I was trying to find. Very handy.

    0
    TonyF12
    TonyF12

    1 year ago

    Thank you for sharing your clamps. Do you have some other shapes and sizes by a chance? I'll try to print them next week, when I have more time.

    0
    PatrickH101
    PatrickH101

    Reply 1 year ago

    Thank you for your compliment. And i have no more shaps and sizes at this time. Only one for an 8 mm bolt. This was a request of aage1. I put the file the reply of his post.

    0
    TonyF12
    TonyF12

    Reply 1 year ago

    Thank you!

    0
    aage1
    aage1

    Question 1 year ago on Step 2

    it looks great
    can you make one for the M8

    0
    PatrickH101
    PatrickH101

    Answer 1 year ago

    Here is a stl for an M8 Bolt. I don't have an M8 bolt lying around at the moment so i can not test if it has a good fit.

    0
    aage1
    aage1

    Reply 1 year ago

    thank you very much
    I'll print one right away
    many greetings
    Aage

    0
    appideas
    appideas

    1 year ago

    This is a great design! Any chance you would make the Fusion 360 file available so that people can make small variations? I want a version that can hold down a 20mm thick board, which I could make myself with the original file. :-) Thank you!

    0
    PatrickH101
    PatrickH101

    Reply 1 year ago

    Hello, thank you for the compliment. I will not share the fusion 360 files. But if you print one you can try to cut a little bit away at the back of the foot under the hinge. This will give it a little more space so it can rotate further. Then maybe you can use it on 20mm.

    0
    appideas
    appideas

    Reply 1 year ago

    Cool. I can also monkey with it in Tinkecad. Thanks!