RC India

RC Equipments => Tools, Materials and Building Techniques => Topic started by: prabal276 on July 28, 2015, 03:57:11 PM

Title: Hot wire cutter assembly
Post by: prabal276 on July 28, 2015, 03:57:11 PM
Hey,
managed to convince my physics lab teacher to order parts for my hot wire cutter and he did so.
I got the parts and they are all correct just help me wire the transformer.
P.S i got 100gms. Of nicrome for 80rs. Just bcause of student concession  ;D ;D


Title: Re: Hot wire cutter assembly
Post by: prabal276 on July 28, 2015, 03:59:26 PM
The only help i need i wiring dig. From you guys. The transformer has 3 ouput leads? Why?
Title: Re: Hot wire cutter assembly
Post by: kamalsahai on July 28, 2015, 07:23:48 PM
good , i am following u

what is proper name of clip in photo and its use 

futher sorry i cannot give answer to ur question

kp
Title: Re: Hot wire cutter assembly
Post by: kamalsahai on July 28, 2015, 07:24:55 PM
 from where ur teacher got nichrome wire so i can get same

kp
Title: Re: Hot wire cutter assembly
Post by: Swapnil on July 28, 2015, 08:16:25 PM
Prabal,

I've attached the circuit diagram.

You only need to use two out of the three leads of the transformer. Either left and center or right and center (as shown in diagram).

Quote from: kamalsahai on July 28, 2015, 07:23:48 PM
...
what is proper name of clip in photo and its use  
...

Those are called alligator clips and can be bought at any electronics store. You can also get a lot of nichrome from a 'heater coil' and it costs only  :Rs: 20.
Title: Re: Hot wire cutter assembly
Post by: K K Iyer on July 28, 2015, 09:47:05 PM
@prabal276,
Did you see reply num 15 on your earlier thread on the same subject?
Regards
Title: Re: Hot wire cutter assembly
Post by: prabal276 on July 28, 2015, 09:56:40 PM
the nicrome was bought from this supplier:
educational equipment supplies delhi.
google it.
i dont know the contact
Title: Re: Hot wire cutter assembly
Post by: prabal276 on July 28, 2015, 09:57:12 PM
which terminal to not use??
Title: Re: Hot wire cutter assembly
Post by: prabal276 on July 28, 2015, 09:58:04 PM
oh! sorry. i missed your text
Title: Re: Hot wire cutter assembly
Post by: madaquif on July 29, 2015, 05:14:28 PM
use either left most or right most....attaching a pic
Title: Re: Hot wire cutter assembly
Post by: prabal276 on July 29, 2015, 05:50:06 PM
I got it working!!!
thanks for your help everybody
Title: Re: Hot wire cutter assembly
Post by: prabal276 on July 29, 2015, 05:52:11 PM
Will post video soon.
Title: Re: Hot wire cutter assembly
Post by: kamalsahai on July 29, 2015, 06:10:22 PM
i am also working on same means middle port is to left out

kp
Title: Re: Hot wire cutter assembly
Post by: kamalsahai on July 29, 2015, 06:15:32 PM
u need also template of ribs.

main flaw is of length of wing. some body told that u can carve 4 ft wing in one go

however, looking for video. further share ur experience also

kp

Title: Re: Hot wire cutter assembly
Post by: prabal276 on July 29, 2015, 08:01:59 PM
ok!!
u have to use the center terminal with either of the sides.
Title: Re: Hot wire cutter assembly
Post by: prabal276 on July 29, 2015, 08:02:39 PM
for the wings,
print them and put them on cardboard
Title: Re: Hot wire cutter assembly
Post by: sahilkit on August 28, 2015, 08:05:22 PM
Did you finish the wiring?
Title: Re: Hot wire cutter assembly
Post by: Propfella on August 29, 2015, 06:56:53 AM
A great place to find Nichrome is from fishing leaders. They are the wire leads they use in deep sea fishing. It goes between the hook and a swivel further up the line. It's used to stop big fish from cutting the line.

I purchased just one of them and it has enough Nichrome to build 5 cutters. Mine has been under tension and used for 5 years and it's still as good as new.
Title: Re: Hot wire cutter assembly
Post by: prabal276 on September 17, 2015, 12:39:18 PM
i finished the wiring but because s.a 1's are going on i can do nothing.
on 24th: i will order parts for a avispad. going for a bush type plane.(preffered livery below)
after that i am planning to make a hd thermocol plane.(for source of extremely high density thermocol free; contact me!)
for that plane i will cut a clark-y airfoil!