A little smaller than 1/16" - Electronic Circuits Projects Diagrams Free

moody07747 · 13th August 2005, 10:51 AM

im building this hotair pencil and am stuck at the heating element part

http://www.dansworkshop.com/SMT%20Ho...20Pencil.shtml

i need to wind a piece of MIG welding wire around something round that is just a tad smaller than the 1/16" brass pipe

i tryed a drill bit but that didnt work out well due to the cuts in the bit

this coil must be slightly smaller than the 1/16" brass pipe so that it stays on there good and tight even when it expands with the heat

any ideas on what to use for this step?

SkinnyBoy · 13th August 2005, 01:20 PM

ahh.. whats wrong with the non cutting end of a drill bit? =\

stevez · 15th August 2005, 12:08 PM

Piano wire is available at many hobby shops. I think the smallest starts at 0.002" and goes up well past 0.125". The drill bit might be a bit stiffer because it is hardened.

Dean Huster · 15th August 2005, 02:41 PM

1/16" = 0.0625"
#53 = 0.0595"
#54 = 0.0550"
#55 = 0.0520"
3/64" = 0.0469"
#56 = 0.0465"
#57 = 0.0430"
#58 = 0.0420"

Our world does not revolve around fractional drill sizes. If you need an assortment of coil-winding diameters, buy a cheap number drill set from one of those tool outlets like Harbor Freight. Those Chinese imports aren't worth a darn as drill bits, but they will give you some diameters from which to choose for winding coils.

Dean

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13th August 2005, 10:51 AM	(permalink)
moody07747	A little smaller than 1/16" im building this hotair pencil and am stuck at the heating element part http://www.dansworkshop.com/SMT%20Ho...20Pencil.shtml i need to wind a piece of MIG welding wire around something round that is just a tad smaller than the 1/16" brass pipe i tryed a drill bit but that didnt work out well due to the cuts in the bit this coil must be slightly smaller than the 1/16" brass pipe so that it stays on there good and tight even when it expands with the heat any ideas on what to use for this step? __________________ Dave www.myspace.com/sonicorbstudios Welcome to "Sonic Orb Studios"

13th August 2005, 01:20 PM	(permalink)
SkinnyBoy	ahh.. whats wrong with the non cutting end of a drill bit? =\

15th August 2005, 12:08 PM	(permalink)
stevez	Piano wire is available at many hobby shops. I think the smallest starts at 0.002" and goes up well past 0.125". The drill bit might be a bit stiffer because it is hardened. __________________ stevez

15th August 2005, 02:41 PM	(permalink)
Dean Huster	1/16" = 0.0625" #53 = 0.0595" #54 = 0.0550" #55 = 0.0520" 3/64" = 0.0469" #56 = 0.0465" #57 = 0.0430" #58 = 0.0420" Our world does not revolve around fractional drill sizes. If you need an assortment of coil-winding diameters, buy a cheap number drill set from one of those tool outlets like Harbor Freight. Those Chinese imports aren't worth a darn as drill bits, but they will give you some diameters from which to choose for winding coils. Dean __________________ Dean Huster, Electronics Curmudgeon Contributing Editor emeritus, "Q & A", of the former "Poptronics" magazine (formerly "Popular Electronics" and "Electronics Now" magazines). R.I.P.