Hello every one
Iam beggining a small cnc foam cutting machine
Cutting area 40” x 30”
Wire lenght max 35”
The machine body and cnc moving is not a big problem,
I have built some cnc routers and this part is fine.
I have Nichrome wire Rene 41 cal 27, from Jacobs,
4.02 Ohm/foot
I need help to select the power supply for heat rhe
Wire.
In jacobs online calculator for that single wire lenght
Transformer Should be 25v and 2.6 A.
I have some transformers, but I don’t know wich one
I can use.
1- A Power Electric RT-625A transformer
I think it was from an old Back UPS.
2- Switching Power Supply .
HSTNS- PD02
Mod- DPS-700CB A
Output 775 W -12V 64.5A
3- A small welding stick machine that gives
Arpund 30V and can hold 200A
4- A complete APC 500 Back UPS
without the battery
For different wire lenght
I think to build a voltage regulator
using a Triac 600V 35A.
Can you help me to select the right transformer
Thanks in advance for read and help me
Sorry my bad english