New tool I am working on to cut and engrave foam
- Thread starter behnt
- Start date
Yes based on a rotary tattoo machine. It has a 6-7mm stroke though and if used as a tattoo machine it would filet the recipient, so don't use it for that! The blade is 0.021 music wire sharpened to a point like a pencil on sandpaper or a sharpening stone. Here is a couple rough samples attached. The cut is much cleaner than expected. What likely happens is that the wire punches holes (10000 rpm) but since the needle heats up a bit it sinters as it cuts... I am debating making these to sell but I'll provide plans and files to make your own shortly. All open hardware-ish
Last edited:
McCarthy83
Active Member
Genius..... results look mega....
LeClubNerd
Well-Known Member
This came up on my facebook feed yesterday. Fine work sir
PotionMistress
Sr Member
HOLY COW! That is brilliant! That could become one of the most useful tools on a creative person's workbench! Great job!
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.
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.
that is damn cool!! thanks for sharing!! :thumbsup
I am seriously debating making kits and or units to sell. If interested I am starting a email list so if I do launch you can be the first to get one. http://Needlesaw.com
Admins if I am out of line here let me know and Ill take this down asap.
Admins if I am out of line here let me know and Ill take this down asap.
Nismo
Well-Known Member
Very awesome of you to share this looks to be a great tool and I look forward to putting one together and anytime I use it for a build I will be sure to mention your website-
Good luck! and thanks again
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