On 1/29/2019 3:37 PM, amdx wrote:> On 1/29/2019 2:24 PM, Phil Hobbs wrote: >> On 1/29/19 3:21 PM, Tim Williams wrote: >>> "Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in >>> message news:o92dnbihka_mB83BnZ2dnUU7-WGdnZ2d@supernews.com... >>>>> These days, the bobbin could possibly be 3D-printed? >>>>> >>>> >>>> If you don't mind it melting. >>>> >>> >>> Not so -- I might not be inclined to trust an extruder product, at >>> least not without a much fancier material than ABS or PLA (and in >>> which case, you may need a special extruder head to handle the much >>> higher temp, and possibly the abrasiveness if it's glass fiber >>> reinforced). >>> >>> There are some pretty fantastic materials available in UV-cure resin, >>> though!� Just a matter of how much you're willing to pay for it, and >>> how much you'll be able to use within its shelf life... >>> >>> Tim >>> >> >> Yeah, but you need a UV laser system to cure it.� It would probably be >> cheaper to machine it from solid yourself than to get it printed. >> >> Cheers >> >> Phil Hobbs >> > > � Go to a motor rewind shop and ask for the paper they use to insulate > the wire when they put it in the slot. It' not paper actually and will > withstand high temperatures. Then use their high temp tape to put > together a bobbin. > ������������������������������ MikekProbably Nomex.
Make your own Power Transformer
Started by ●January 13, 2019
Reply by ●January 30, 20192019-01-30
Reply by ●January 30, 20192019-01-30
On 1/30/2019 7:17 AM, John S wrote:> On 1/29/2019 3:37 PM, amdx wrote: >> On 1/29/2019 2:24 PM, Phil Hobbs wrote: >>> On 1/29/19 3:21 PM, Tim Williams wrote: >>>> "Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in >>>> message news:o92dnbihka_mB83BnZ2dnUU7-WGdnZ2d@supernews.com... >>>>>> These days, the bobbin could possibly be 3D-printed? >>>>>> >>>>> >>>>> If you don't mind it melting. >>>>> >>>> >>>> Not so -- I might not be inclined to trust an extruder product, at >>>> least not without a much fancier material than ABS or PLA (and in >>>> which case, you may need a special extruder head to handle the much >>>> higher temp, and possibly the abrasiveness if it's glass fiber >>>> reinforced). >>>> >>>> There are some pretty fantastic materials available in UV-cure >>>> resin, though!� Just a matter of how much you're willing to pay for >>>> it, and how much you'll be able to use within its shelf life... >>>> >>>> Tim >>>> >>> >>> Yeah, but you need a UV laser system to cure it.� It would probably >>> be cheaper to machine it from solid yourself than to get it printed. >>> >>> Cheers >>> >>> Phil Hobbs >>> >> >> �� Go to a motor rewind shop and ask for the paper they use to >> insulate the wire when they put it in the slot. It' not paper actually >> and will withstand high temperatures. Then use their high temp tape to >> put together a bobbin. >> ������������������������������� Mikek > > Probably Nomex.Yep, I probably still have some in my junk box from the early 80's. I used it to insulate between windings on pot core transformers in the late 90s. Mikek
Reply by ●January 30, 20192019-01-30
On 1/30/2019 7:54 AM, amdx wrote:> On 1/30/2019 7:17 AM, John S wrote: >> On 1/29/2019 3:37 PM, amdx wrote: >>> On 1/29/2019 2:24 PM, Phil Hobbs wrote: >>>> On 1/29/19 3:21 PM, Tim Williams wrote: >>>>> "Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in >>>>> message news:o92dnbihka_mB83BnZ2dnUU7-WGdnZ2d@supernews.com... >>>>>>> These days, the bobbin could possibly be 3D-printed? >>>>>>> >>>>>> >>>>>> If you don't mind it melting. >>>>>> >>>>> >>>>> Not so -- I might not be inclined to trust an extruder product, at >>>>> least not without a much fancier material than ABS or PLA (and in >>>>> which case, you may need a special extruder head to handle the much >>>>> higher temp, and possibly the abrasiveness if it's glass fiber >>>>> reinforced). >>>>> >>>>> There are some pretty fantastic materials available in UV-cure >>>>> resin, though!� Just a matter of how much you're willing to pay for >>>>> it, and how much you'll be able to use within its shelf life... >>>>> >>>>> Tim >>>>> >>>> >>>> Yeah, but you need a UV laser system to cure it.� It would probably >>>> be cheaper to machine it from solid yourself than to get it printed. >>>> >>>> Cheers >>>> >>>> Phil Hobbs >>>> >>> >>> �� Go to a motor rewind shop and ask for the paper they use to >>> insulate the wire when they put it in the slot. It' not paper >>> actually and will withstand high temperatures. Then use their high >>> temp tape to put together a bobbin. >>> ������������������������������� Mikek >> >> Probably Nomex. > > �Yep, I probably still have some in my junk box from the early 80's. > �I used it to insulate between windings on pot core transformers > in the late 90s. > ��������������������������������� MikekWe used it in high power inductors and transformers in the 80s to 90s. Never had a problem.
