• This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn more.

Hand held needle saw

#24
I have been AWOL for a while... I have been working on the saw though. So this is a little update.

I have been debating a Kickstarter for the tool. Let me know if you would be interested and how much you would pay for one.

For those that use Onshape here are the 3D files so you can 3D print your own:

For the 180 size motor (slot car motor)
https://cad.onshape.com/documents/c...f507ea7eaa26ca8e3a/e/8fb0da8f4c7d521f7cf84578

For the 280 size motor (somewhat standard dc motor)
https://cad.onshape.com/documents/9...c5999326e0dd175161/e/0d2dab8331887e8acecdaf83

NOTES: I'll get on a write up and video tutorial on how to make them soon but for those of you mechanically inclined this may be enough to get started. To get access to the files you will need to sign up to Onshape.com it is TOTALY worth it and free.

1. Motor needs to be 10watt so a 5V 2A motor or a 12V 1A or......
2. Best wire to use on this is piano wire 0.021" diameter you can get this from unwinding a low E string on a guitar
3. Buy a foot pedal and put it inline between the power source and the saw.
4. Right click on a part in Onshape and choose export and input the settings for a STL file of your choice.
5. Buy a tattoo machine tip from here. https://www.amazon.com/Round-Stainl...&sr=1-4&keywords=tattoo+tip+stainless+3r&th=1

Thats all for now. More to come.
 
#27
I am still working on this and am having issues with the needle cam. I am finding that the heat of the motor softens the PLA cam I am using. I am hitting a wall on where to go from here. I have come up with this as a alternative to the first version here https://cad.onshape.com/documents/9...c5999326e0dd175161/e/0d2dab8331887e8acecdaf83

Do you guys have any suggestions? I have debated this but wonder if there is a flat plate version out there somewhere https://hobbyking.com/en_us/propeller-adapter-collet-type-3mm-1.html?___store=en_us