"Clutch" for a drill press. To drill and tap smaller holes.

[Tuomas]

Continued with the issue about small holes and big drill press.

Made this "clutch". Its a prototype, but works.

It was a little difficult to get things to go straight, threads for the rod and chuck. Without a metal lathe.

But i think it can be done well enough with hand tools too.

Idea is very simple. Chuck in the drill press, holds the clutch from the 16mm pipe.

Axle inside the pipe is allowed to go round and move up and down.

Spring transmits the power from the pipe to the smaller chuck, when drill stucks, it doesn't break because spring starts to "slide" .

Spring also allows tapping tool to move up and down, that's important. Otherwise thread would break.

12mm axle.
12/28 5mm thick washers
60mm x 15mm x 1.5 spring.
Drill chuck with M12 thread.
16/12mm pipe. 12/28 2mm thick locking washer.

[DIYer]

Thanks Tuomas! We've added your Drill Press Clutch to our Drilling and Drill Presses category,
as well as to your builder page: Tuomas's Homemade Tools. Your receipt:

Drill Press Clutch by Tuomas

tags: drill press, chuck, clutch

[olderdan]

Nice idea Tuomas simple, but it works and you can always vary the spring to suit your needs.

[Tuomas]

Nice idea Tuomas simple, but it works and you can always vary the spring to suit your needs.

Thank you. Yes. I bought bigger springs too. But that chuck doesn't hold bigger taps than M4. M3 and M4 goes with the same spring. I need to try it with bigger chuck someday.

[Ralphxyz]

Wow, very interesting, thanks for posting.

Now it is going to take a bit for me to understand exactly what is happening and why.

Ralph

[crazypj]

Hi Ralph,
It's held by the outer tube so only has spring pressure to friction drive the small chuck

[Y-geo]

Tuomas,
very clever idea Thank You for sharing that

[Ralphxyz]

Hi crazypj, thanks. BUT ...

Why does that help to not break a bit?

I really like the whole concept and project, thanks for posting.

I am new to actually thinking about what is going on in any milling lathing or drilling operations.

Ralph

[crazypj]

The outer tube is connected to large chuck. The 'bolt' inside is free to rotate. The spring provides pressure for 'clutch' (the large washer and flange) If too much torque is applied, the 'bolt' will stop spinning and clutch slips. The outer tube keeps spinning. If the outer tube was threaded and a flanged nut used, the clutch would become adjustable as spring pressure can be adjusted. It's actually quite clever to adapt this to small drills/taps although also quite easy to 'go overboard' and add too many 'features' (I should make one but I know I would keep adding things defeating purpose of simple tool - LOL)

[Jon]

Congratulations Tuomas - your Drill Press Clutch is the Homemade Tool of the Week!

It's increasingly difficult around here to build a tool that most of us have never seen before, but this one certainly qualifies.

What's really exciting here is the "Part 1" title of your video. If the "Getting More from Your Drill Press" series is anything like your "Getting More from Your Angle Grinder" builds, it looks like we're in for some more great homemade tools.

Some other nice picks from this week: an Audible Resistance Checker by mklotz, a Benchtop Power Supply by Christophe Mineau, a Boring Bar Holder by rossbotics, a Precision Lathe Chuck Reference by rgsparber, a Tap Extension by Cascao, a Cement Mixer Concrete Chute by Frank S, a Leather Creasing Tool and Sheath by frugalolgeezer, a Steering Rack Adjustment Tool by handycrowd, an All Terrain Track Chair Safety Bar Locking Mechanism by KustomsbyKent, a Drill Bit Sorting Technique by rgsparber, and a Metric Threading Method by olderdan.


Tuomas - you'll be receiving a $25 online gift card, in your choice of Amazon, PayPal, or bitcoin. Please PM me your current email address and gift card choice and I'll get it sent over right away.

Here are all 6 of your Homemade Tool of the Week winning tools:

Dremel Belt Sander Attachment by Tuomas

tags: belt sander, Dremel, rotary tool

Dremel Lathe Conversion by Tuomas

tags: lathe, Dremel, modification

Anvil by Tuomas

tags: anvil

Angle Grinder Rest by Tuomas

tags: angle grinder

Rod and Tubing Vise by Tuomas

tags: tubing, vise

Drill Press Clutch by Tuomas

tags: drill press, chuck, clutch