Simple drilling machine for hard stones

Tapirchik
Registered User
Tapirchik
Registered User
Joined: March 22nd, 2013, 4:31 pm

August 11th, 2018, 8:10 pm #1

Hi all, this is the first drilling machine I've thought. The flywheel is lead. It spins in only one sense. I've started with a wood rod and wet sand. But for little holes, it wasn't a good solution so I've stuckd a little point of flint so I've been able to drill tiny holes in a little piece of flint.


DSC_0514.JPG DSC_0513.JPG This is the piece I've choose for this experiment.  I've got this idea and I've thought to share with you 

https://www.youtube.com/watch?v=F_QS0BHL0Zw&t=20s

After about one hour, this is the result



So I'm able to continue drilling without the device

https://www.youtube.com/watch?v=NkhL1ztfQEM

I hope you like, best regards, Ruggiero
Inviato dal mio Redmi Note 4 utilizzando Tapatalk
Quote
Like
Share

Tapirchik
Registered User
Tapirchik
Registered User
Joined: March 22nd, 2013, 4:31 pm

August 14th, 2018, 2:40 pm #2

I've tried to use it as that one I've shown in the photo and it works. It oscillates a bit



Inviato dal mio Redmi Note 4 utilizzando Tapatalk


I have to add that the point must be filed, without any sharp edge




This is the point I've started with







I've filed it but not enough so after half hour it's broken 




I've also tried this alternative way



Immersed in water, the wood swells and grips the bone
I've tried to drill on the opposite side.




I hope to end drilling before s.Valentine 😆
Quote
Like
Share