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 ,
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" wrote in message ...
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" wrote in message
nk.net...

"j.duprie" wrote in message
...
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

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"
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" wrote in message
ink.net...

"j.duprie" wrote in message
...
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

John Crea 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
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

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" wrote in message
...
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"
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" wrote in message
ink.net...

"j.duprie" wrote in message
...
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

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" wrote in message
...
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" wrote in message
nk.net...

"j.duprie" wrote in message
...
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"
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

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" wrote in message
...
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" wrote in message
...
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"
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" wrote in message
ink.net...

"j.duprie" wrote in message
...
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 , 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

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