How to Make a Mini Pyrography Tool
Intro: How to Make a Mini Pyrography Tool
Nice idea !!
We need:
2 sewing needles one second medical
Power supply from the mobile phone (I'll use on Iphone 10W USB Power Adapter . ( apple )
Model no: A1357 0010ADU00 Input 100-240 V 0.45A 50-60Hz Output: 5.1 V 2.1A )
Threadheat shrink tubing
Super glue
Soldering Iron
Barbecue skewers
34 Comments
marcocestarolli 4 years ago
Anargopunk 7 years ago
i have read in a few comments that a current limiting should be added, but most if not all powersupplies have a current limitation internal. for this to work there should be more than 2A of current, given that an apple power charger is 5V the resistor should dissipate more than 10W, most resistors are rated 1/4W, also that kind of resistor would be bulky and will become warm, instead of the tip becoming hot making the tool useless
martonthenagy 6 years ago
Here you _must_not_ include a resistor. Any resistor equal, or larger than 0.1 Ohm will get the most of the voltage drop, so the needles will not get any, so the power will go to the wrong place.
But, You need current limiting to not burn Your house down.
* When using the specified kind of phone adapters, current limiting is in the adapter.
* When using 9V alkaline battery, the current limiting is in the battery, because it cannot give You too much current (based in chemistry).
* When You use a powerful power supply, set up current limiting, or decrease voltage to get the ideal voltage / amperage ratio.
kyle9013 7 years ago
Can someone tell me where to get the Needles? Ive looked saw some, but i wanna make sure I get the right ones.
TracyBoorman 7 years ago
I found them at animal farm supply places if that helps
TracyBoorman 7 years ago
I have a question, could I use heat shrink tube to hold needles instead of thread and glue?
Mad Fox 8 years ago
FIY: ADD A CURRENT LIMITING RESISTOR
If not, it's possible for this to short out the power supply, which may cause fuse to blow up, and might cause a fire.... so for your own sake, add a current limiting resistor. You can calculate the value you need using Ohm's Law
IIsayiahA 7 years ago
Should the resistor go between the needles and the battery BEFORE the positive connects to the needles, or AFTER the needles? Also, how would you calculate the resistance needed?
Mad Fox 7 years ago
كابراهيم سمرين 8 years ago
tlr_lucifer 8 years ago
IIsayiahA 7 years ago
Should the resistor go between the needles and the battery BEFORE the positive connects to the needles, or AFTER the needles? Also, how would you calculate the resistance needed?
saugata.roy 7 years ago
Hey... great idea. I tried building this myself but the entire syringe
needle got so hot that it burnt the wooden pencil and the threads almost
instantly. Is there any way to control the temperature and limit the
heat to the tip? Perhaps I should use a voltage divider or something to
limit the current.... right?
saugata.roy 7 years ago
Hey... great idea. I tried building this myself but the entire syringe
needle got so hot that it burnt the wooden pencil and the threads almost
instantly. Is there any way to control the temperature and limit the
heat to the tip? Perhaps I should use a voltage divider or something to
limit the current.... right?
DIYWEAPONS 8 years ago
Im not sure what i did wrong but this didnt work, i could be the old charger i used?
grag808 8 years ago
You need to renew your domain . looks like it has expired 11 days ago. :/
Just so you know.
Oбнови Домен . ;)
Ultra-Indigo 8 years ago
Yonatan24 8 years ago
More watts is always better
blakehx 8 years ago
LosDragonesSF 8 years ago
Espectacular idea y muy sencilla de realizar ademas de lo económico de la propuesta, gracias por compartir.