HI gang..
I find myself in a situation where Delrin would be a much better material
for a couple of components than wood. I've never tried working it before, so
I figured I'd ping you folks...
I'll be turning and drilling (I'm making a hub). I've worked UHMW plastics
before, and lots of wood. Wondering if anyone has any experience with
delrin?
thanks
--JD
In article <[email protected]>, [email protected]
says...
> HI gang..
> I find myself in a situation where Delrin would be a much better material
> for a couple of components than wood. I've never tried working it before, so
> I figured I'd ping you folks...
>
> I'll be turning and drilling (I'm making a hub). I've worked UHMW plastics
> before, and lots of wood. Wondering if anyone has any experience with
> delrin?
>
> thanks
> --JD
Delrin machines fine with most any end mill, bit have no idea how it
would work with a router bit or a lathe. I'd suspect that you'd be ok
as long as you make sure the tool is sharp, and watch your cutter speed
and feed rate.
BTW, great stuff that Delrin...
--
Regards,
Rick
(Remove the HIGH SPOTS for e-mail)
"j.duprie" <[email protected]> wrote in message news:[email protected]...
> HI gang..
> I find myself in a situation where Delrin would be a much better material
> for a couple of components than wood. I've never tried working it before, so
> I figured I'd ping you folks...
>
> I'll be turning and drilling (I'm making a hub). I've worked UHMW plastics
> before, and lots of wood. Wondering if anyone has any experience with
> delrin?
>
> thanks
> --JD
>
>
I've heard of Delrin being used to fabricate gears. What are you doing with it?
In what form are you obtaining it? sheets? Where do you get it?
Thanks,
Myx
I just finished turning and cutting some white delrin rod for my father-in-
law's boat trailer. I have and use a metal lathe and was going to turn it on
that, but I was in a rush so I turned it on my ww lathe.
It turns fine, just like really wet green wood. It does catch so you need to
be mindful of it. I used a gouge and scraped and sanded it, with no problems.
You might want to research its properties to UV light. From what I read it
breaks down from direct sunlight.
Aloha, Russell
In article <[email protected]>, [email protected] says...
>
>HI gang..
>I find myself in a situation where Delrin would be a much better material
>for a couple of components than wood. I've never tried working it before, so
>I figured I'd ping you folks...
>
>I'll be turning and drilling (I'm making a hub). I've worked UHMW plastics
>before, and lots of wood. Wondering if anyone has any experience with
>delrin?
>
>thanks
>--JD
>
>
Marine Biology . . . specimen sampling, I would guess.
I know they use Delrin as the sheaves in line blocks . . . more for Sail
then Power . . . so you should be safe. The material is similar to what is
used to make 'Nylabone' synthetic dog bones. You shouldn't have much trouble
using normal wood-working tools. I know I have used the 'leftovers' from our
two Malamutes for 'stops', 'bumpers', etc.
When / if turning take note that the material isn't as 'stiff' as a metal .
. . especially when 'friction heat' takes effect. It will tend to 'bend
away' from the cutting tool. 1}go VERY slow, 2}keep it VERY cool {keep
flooded with 'cutting lube'}, 3} stop FREQUENTLY and measure . . . 'sneak
up' on the final dimension.
Regards & Good Luck,
Ron Magen
Backyard Boatshop
"j.duprie" <[email protected]> wrote in message
news:[email protected]...
> I'm making hubs to mount a drum to a rotating shaft - part of something
> called a plankton wheel. I'm getting the Delrin from McMaster-Carr in a 3"
> thick X 9" diameter disk. Pretty much all I have to do is machine in somw
> screw holes to mount the drum, a hole for the shaft (1"), and a hole to
pin
> the hub toi the shaft. Should be pretty simple, but doing it in stainless
> will cost be about $1,000, and it will be exposed to seawater, so Delrin
it
> is (ata cost of about $40 and a couple hours shop time...)
>
> --JD
>
>
> "Myxylplyk" <[email protected]> wrote in message
> news:[email protected]...
> >
> > "j.duprie" <[email protected]> wrote in message
> news:[email protected]...
> > > HI gang..
> > > I find myself in a situation where Delrin would be a much better
> material
> > > for a couple of components than wood. I've never tried working it
> before, so
> > > I figured I'd ping you folks...
> > >
> > > I'll be turning and drilling (I'm making a hub). I've worked UHMW
> plastics
> > > before, and lots of wood. Wondering if anyone has any experience with
> > > delrin?
> > >
> > > thanks
> > > --JD
> > >
> > >
> > I've heard of Delrin being used to fabricate gears. What are you doing
> with it?
> > In what form are you obtaining it? sheets? Where do you get it?
> > Thanks,
> >
> > Myx
> >
> >
>
>
I'm making hubs to mount a drum to a rotating shaft - part of something
called a plankton wheel. I'm getting the Delrin from McMaster-Carr in a 3"
thick X 9" diameter disk. Pretty much all I have to do is machine in somw
screw holes to mount the drum, a hole for the shaft (1"), and a hole to pin
the hub toi the shaft. Should be pretty simple, but doing it in stainless
will cost be about $1,000, and it will be exposed to seawater, so Delrin it
is (ata cost of about $40 and a couple hours shop time...)
--JD
"Myxylplyk" <[email protected]> wrote in message
news:[email protected]...
>
> "j.duprie" <[email protected]> wrote in message
news:[email protected]...
> > HI gang..
> > I find myself in a situation where Delrin would be a much better
material
> > for a couple of components than wood. I've never tried working it
before, so
> > I figured I'd ping you folks...
> >
> > I'll be turning and drilling (I'm making a hub). I've worked UHMW
plastics
> > before, and lots of wood. Wondering if anyone has any experience with
> > delrin?
> >
> > thanks
> > --JD
> >
> >
> I've heard of Delrin being used to fabricate gears. What are you doing
with it?
> In what form are you obtaining it? sheets? Where do you get it?
> Thanks,
>
> Myx
>
>
I've decided against a keytway because I don't think the delrin will hold
up. Instead there will be a through bolt (Much larger distribution of load)
--JD
"John Crea" <[email protected]> wrote in message
news:[email protected]...
> You might also want to machine in a keyway to prevent spinning on the
> shaft - unless you want it to spin on the shaft <vbg!!!>
>
> John
>
> On Wed, 14 Jan 2004 13:11:17 -0500, "j.duprie"
> <[email protected]> wrote:
>
> >I'm making hubs to mount a drum to a rotating shaft - part of something
> >called a plankton wheel. I'm getting the Delrin from McMaster-Carr in a
3"
> >thick X 9" diameter disk. Pretty much all I have to do is machine in somw
> >screw holes to mount the drum, a hole for the shaft (1"), and a hole to
pin
> >the hub toi the shaft. Should be pretty simple, but doing it in stainless
> >will cost be about $1,000, and it will be exposed to seawater, so Delrin
it
> >is (ata cost of about $40 and a couple hours shop time...)
> >
> >--JD
> >
> >
> >"Myxylplyk" <[email protected]> wrote in message
> >news:[email protected]...
> >>
> >> "j.duprie" <[email protected]> wrote in message
> >news:[email protected]...
> >> > HI gang..
> >> > I find myself in a situation where Delrin would be a much better
> >material
> >> > for a couple of components than wood. I've never tried working it
> >before, so
> >> > I figured I'd ping you folks...
> >> >
> >> > I'll be turning and drilling (I'm making a hub). I've worked UHMW
> >plastics
> >> > before, and lots of wood. Wondering if anyone has any experience with
> >> > delrin?
> >> >
> >> > thanks
> >> > --JD
> >> >
> >> >
> >> I've heard of Delrin being used to fabricate gears. What are you doing
> >with it?
> >> In what form are you obtaining it? sheets? Where do you get it?
> >> Thanks,
> >>
> >> Myx
> >>
> >>
> >
>
Thanks evryone. Sounds like I shouldn't have any problems.
The application is for a plankton wheel - basically a big drum that you
strap 2 litre bottles to. Each bottle contains smaples of plankton/larvae.
You turn the drum to keep the critters from settling to the bottom. very low
turbulence, but no settling....
--JD
"j.duprie" <[email protected]> wrote in message
news:[email protected]...
> I've decided against a keytway because I don't think the delrin will hold
> up. Instead there will be a through bolt (Much larger distribution of
load)
> --JD
>
>
> "John Crea" <[email protected]> wrote in message
> news:[email protected]...
> > You might also want to machine in a keyway to prevent spinning on the
> > shaft - unless you want it to spin on the shaft <vbg!!!>
> >
> > John
> >
> > On Wed, 14 Jan 2004 13:11:17 -0500, "j.duprie"
> > <[email protected]> wrote:
> >
> > >I'm making hubs to mount a drum to a rotating shaft - part of something
> > >called a plankton wheel. I'm getting the Delrin from McMaster-Carr in a
> 3"
> > >thick X 9" diameter disk. Pretty much all I have to do is machine in
somw
> > >screw holes to mount the drum, a hole for the shaft (1"), and a hole to
> pin
> > >the hub toi the shaft. Should be pretty simple, but doing it in
stainless
> > >will cost be about $1,000, and it will be exposed to seawater, so
Delrin
> it
> > >is (ata cost of about $40 and a couple hours shop time...)
> > >
> > >--JD
> > >
> > >
> > >"Myxylplyk" <[email protected]> wrote in message
> > >news:[email protected]...
> > >>
> > >> "j.duprie" <[email protected]> wrote in message
> > >news:[email protected]...
> > >> > HI gang..
> > >> > I find myself in a situation where Delrin would be a much better
> > >material
> > >> > for a couple of components than wood. I've never tried working it
> > >before, so
> > >> > I figured I'd ping you folks...
> > >> >
> > >> > I'll be turning and drilling (I'm making a hub). I've worked UHMW
> > >plastics
> > >> > before, and lots of wood. Wondering if anyone has any experience
with
> > >> > delrin?
> > >> >
> > >> > thanks
> > >> > --JD
> > >> >
> > >> >
> > >> I've heard of Delrin being used to fabricate gears. What are you
doing
> > >with it?
> > >> In what form are you obtaining it? sheets? Where do you get it?
> > >> Thanks,
> > >>
> > >> Myx
> > >>
> > >>
> > >
> >
>
>
Well, I did it. I needed to turn 2 8" disks out of delrin, so I chucked the
stuff into my wood lathe, and had at it.
Here's what I found:
scrapers work great if you can keep them from chattering (requires a
solid grip). It throws off long stringy shavings that really stink (smells
like formalin).
the finish you can get is very good - nice smooth shiny surface.
sharp toiols and a moderate cutting speed are essential - turn to fast or
witha dull tool and you get either catches or chatter and dust..
I managed to turn 2 parts - 8" disks 1" thick, with a shoulder at about 1"
out from the center, and a 1" hole bored through the center. Kind of like a
lathe faceplate but without threads in the center hole.
If you can stand the smell, its easy to turn...
--JD
You might also want to machine in a keyway to prevent spinning on the
shaft - unless you want it to spin on the shaft <vbg!!!>
John
On Wed, 14 Jan 2004 13:11:17 -0500, "j.duprie"
<[email protected]> wrote:
>I'm making hubs to mount a drum to a rotating shaft - part of something
>called a plankton wheel. I'm getting the Delrin from McMaster-Carr in a 3"
>thick X 9" diameter disk. Pretty much all I have to do is machine in somw
>screw holes to mount the drum, a hole for the shaft (1"), and a hole to pin
>the hub toi the shaft. Should be pretty simple, but doing it in stainless
>will cost be about $1,000, and it will be exposed to seawater, so Delrin it
>is (ata cost of about $40 and a couple hours shop time...)
>
>--JD
>
>
>"Myxylplyk" <[email protected]> wrote in message
>news:[email protected]...
>>
>> "j.duprie" <[email protected]> wrote in message
>news:[email protected]...
>> > HI gang..
>> > I find myself in a situation where Delrin would be a much better
>material
>> > for a couple of components than wood. I've never tried working it
>before, so
>> > I figured I'd ping you folks...
>> >
>> > I'll be turning and drilling (I'm making a hub). I've worked UHMW
>plastics
>> > before, and lots of wood. Wondering if anyone has any experience with
>> > delrin?
>> >
>> > thanks
>> > --JD
>> >
>> >
>> I've heard of Delrin being used to fabricate gears. What are you doing
>with it?
>> In what form are you obtaining it? sheets? Where do you get it?
>> Thanks,
>>
>> Myx
>>
>>
>
Jd, Delrin is thermosetting. Just try to keep it cool by using sharp
cutters. You can "weld" it with a soldering iron. Large cross sections
are thermo fused and thus have a seam. This seam can lead to failure
depending upon application. You can tell if you have a seam if you see
a faint line after machining. Delrin is a trade name. It comes in
black or natural(white). Great stuff. It has teflon in it so don't try
using glue. Been there. Good Luck.
On Wed, 14 Jan 2004 10:21:22 -0500, "j.duprie"
<[email protected]> wrote:
>HI gang..
>I find myself in a situation where Delrin would be a much better material
>for a couple of components than wood. I've never tried working it before, so
>I figured I'd ping you folks...
>
>I'll be turning and drilling (I'm making a hub). I've worked UHMW plastics
>before, and lots of wood. Wondering if anyone has any experience with
>delrin?
>
>thanks
>--JD
>
John Crea <[email protected]> writes:
> You might also want to machine in a keyway to prevent spinning on the
> shaft - unless you want it to spin on the shaft <vbg!!!>
... in that case it would be an axle...
--
Dr. Juergen Hannappel http://lisa2.physik.uni-bonn.de/~hannappe
mailto:[email protected] Phone: +49 228 73 2447 FAX ... 7869
Physikalisches Institut der Uni Bonn Nussallee 12, D-53115 Bonn, Germany
CERN: Phone: +412276 76461 Fax: ..77930 Bat. 892-R-A13 CH-1211 Geneve 23