On 3/11/2014 11:26 AM, Gene Heskett wrote:
On Tuesday 11 March 2014 13:25:43 John Kasunich did opine:
http://imgs.xkcd.com/comics/standards.png
Chuckle. But how old is that? we must have at least 20 by now.
A perfect example is the USB standard. It began with exactly two and
only two
On Wednesday 12 March 2014 03:13:46 Gregg Eshelman did opine:
On 3/11/2014 11:26 AM, Gene Heskett wrote:
On Tuesday 11 March 2014 13:25:43 John Kasunich did opine:
http://imgs.xkcd.com/comics/standards.png
Chuckle. But how old is that? we must have at least 20 by now.
A perfect
On Mon, 10 Mar 2014 18:21:56 -0400, you wrote:
On Monday 10 March 2014 18:19:45 jeremy youngs did opine:
gene , have a go at this
http://precisionparts.wmberg.com/timingBeltsChains
I am thinking I need a 5mm pitch, 9.5mm wide, 72 cogs long, but they only
go up to 3mm pitch.
If it's a Sieg
On Tuesday 11 March 2014 06:06:32 Steve Blackmore did opine:
On Mon, 10 Mar 2014 18:21:56 -0400, you wrote:
On Monday 10 March 2014 18:19:45 jeremy youngs did opine:
gene , have a go at this
http://precisionparts.wmberg.com/timingBeltsChains
I am thinking I need a 5mm pitch, 9.5mm wide,
On Mon, Mar 10, 2014, at 11:09 PM, Gene Heskett wrote:
Damn John, I just counted it twice more and got 31 both times.
At a top of the tooth diameter of 1.803, where the heck does that leave
us/me?
The smaller driver pulley, is .976 across the top of the teeth, and 17
teeth, .388
In our first attempt to make the spindle encoder for the KT - we grabbed a
timing gear that we had 2 of.. (Something from some old printers we took apart
(70's vintage probably). Well - when we got all done we could not find a belt
to match the pitch. We gave up and used different timing
http://imgs.xkcd.com/comics/standards.png
--
John Kasunich
jmkasun...@fastmail.fm
--
Learn Graph Databases - Download FREE O'Reilly Book
Graph Databases is the definitive new guide to graph databases and their
On 03/11/2014 08:27 AM, John Kasunich wrote:
OK, math done. The pitch comes out to 0.1855, which has me mystified,
because I've never heard of such a thing. (I've done a fair bit if tooth-
belt research for different projects.)
Well, 5 mm is ~ .197, so maybe accounting for the pitch
On 03/11/2014 08:48 AM, sa...@empirescreen.com wrote:
In our first attempt to make the spindle encoder for the KT - we grabbed a
timing gear that we had 2 of.. (Something from some old printers we took
apart (70's vintage probably). Well - when we got all done we could not find
a belt to
On Tuesday 11 March 2014 12:29:32 John Kasunich did opine:
On Mon, Mar 10, 2014, at 11:09 PM, Gene Heskett wrote:
Damn John, I just counted it twice more and got 31 both times.
At a top of the tooth diameter of 1.803, where the heck does that
leave us/me?
The smaller driver pulley,
On Tuesday 11 March 2014 13:25:43 John Kasunich did opine:
http://imgs.xkcd.com/comics/standards.png
Chuckle. But how old is that? we must have at least 20 by now.
Cheers, Gene
--
There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order.
On Tuesday 11 March 2014 13:28:53 Jon Elson did opine:
On 03/11/2014 08:27 AM, John Kasunich wrote:
OK, math done. The pitch comes out to 0.1855, which has me
mystified, because I've never heard of such a thing. (I've done a
fair bit if tooth- belt research for different projects.)
On 11 March 2014 17:17, Gene Heskett ghesk...@wdtv.com wrote:
From SPI-SC, about $175 a set in metal what I assume is kevlar belt
backing. In XL format. The bores are a hair odd, and it would be the first
time they ever broached a 4mm key in a 10mm bore for the top pulley.
No need to broach
On Tuesday 11 March 2014 13:45:31 andy pugh did opine:
On 11 March 2014 17:17, Gene Heskett ghesk...@wdtv.com wrote:
From SPI-SC, about $175 a set in metal what I assume is kevlar belt
backing. In XL format. The bores are a hair odd, and it would be the
first time they ever broached a
On Tue, Mar 11, 2014, at 12:41 PM, Jon Elson wrote:
On 03/11/2014 08:27 AM, John Kasunich wrote:
OK, math done. The pitch comes out to 0.1855, which has me mystified,
because I've never heard of such a thing. (I've done a fair bit if tooth-
belt research for different projects.)
On Tuesday 11 March 2014 14:05:05 John Kasunich did opine:
On Tue, Mar 11, 2014, at 12:41 PM, Jon Elson wrote:
On 03/11/2014 08:27 AM, John Kasunich wrote:
OK, math done. The pitch comes out to 0.1855, which has me
mystified, because I've never heard of such a thing. (I've done a
On 11 March 2014 17:46, Gene Heskett ghesk...@wdtv.com wrote:
I took an entirely diffferent approach on my 9x40:
https://picasaweb.google.com/lh/photo/Ilc3m7J-FIGIoLXQTOYqcdMTjNZETYmyPJy0liipFm0?feat=directlink
That didn't seem to be the right pix Andy. ?
It's the right picture. I dispensed
On 11 March 2014 18:07, Gene Heskett ghesk...@wdtv.com wrote:
So in the long view, I may as well give sdp-sc a call confirm the ugly
details give them a card number.
Why not buy pilot-bore pulleys and modify to suit?
It would be easier with a working lathe, though not _that_ much easier
as
On Tuesday 11 March 2014 18:47:15 andy pugh did opine:
On 11 March 2014 18:07, Gene Heskett ghesk...@wdtv.com wrote:
So in the long view, I may as well give sdp-sc a call confirm the
ugly details give them a card number.
Why not buy pilot-bore pulleys and modify to suit?
It would be
On Sun, Mar 9, 2014 at 11:20 PM, Gene Heskett ghesk...@wdtv.com wrote:
Greetings;
I have no clue why, but the replacement belt I got from LMS to replace the
one I burnt some cogs out of, is now too short by at least 2, maybe 4
teeth. I find that by the time I get the motor leveled and the
On Monday 10 March 2014 05:53:17 Mark Wendt did opine:
On Sun, Mar 9, 2014 at 11:20 PM, Gene Heskett ghesk...@wdtv.com wrote:
Greetings;
I have no clue why, but the replacement belt I got from LMS to replace
the one I burnt some cogs out of, is now too short by at least 2,
maybe 4
On 10 March 2014 09:59, Gene Heskett ghesk...@wdtv.com wrote:
I see that in XL they have a 9.5mm width which would fit, but if you hunt
around, the GT2 2mm pitch stuff doesn't match at all.
You might find
http://www.hpcgears.com/n/products/1.pulleys_belts/pulleys_belts.php
useful. I don't
On Monday 10 March 2014 11:31:19 andy pugh did opine:
On 10 March 2014 09:59, Gene Heskett ghesk...@wdtv.com wrote:
I see that in XL they have a 9.5mm width which would fit, but if you
hunt around, the GT2 2mm pitch stuff doesn't match at all.
You might find
On Monday 10 March 2014 16:35:32 Gene Heskett did opine:
On Monday 10 March 2014 11:31:19 andy pugh did opine:
On 10 March 2014 09:59, Gene Heskett ghesk...@wdtv.com wrote:
I see that in XL they have a 9.5mm width which would fit, but if you
hunt around, the GT2 2mm pitch stuff doesn't
On Mon, Mar 10, 2014, at 04:55 PM, Gene Heskett wrote:
Continuing this thread of trying to determine what belt I need to properly
fit these pulleys, I have talked to Chris Wood at LMS but he can't help me
with anything but OEM parts, so some math based on the gullet od + the tip
od on
gene , have a go at this
http://precisionparts.wmberg.com/timingBeltsChains
jeremy youngs
On Mon, Mar 10, 2014 at 5:17 PM, John Kasunich jmkasun...@fastmail.fmwrote:
On Mon, Mar 10, 2014, at 04:55 PM, Gene Heskett wrote:
Continuing this thread of trying to determine what belt I need to
Do you have the LMS part number. I have access to pretty much any kind of belt
through work. I can check tomorrow
Sent from my iPad
On Mar 10, 2014, at 11:35 AM, Gene Heskett ghesk...@wdtv.com wrote:
On Monday 10 March 2014 11:31:19 andy pugh did opine:
On 10 March 2014 09:59, Gene
Yes, the Pitch Dia. is greater than the OD of the sprocket. take a look at
the below link.
http://www.brecoflex.com/index.php?CATID=7SCATID=44
On Mon, Mar 10, 2014 at 5:17 PM, John Kasunich jmkasun...@fastmail.fmwrote:
On Mon, Mar 10, 2014, at 04:55 PM, Gene Heskett wrote:
Continuing
On Monday 10 March 2014 17:30:25 John Kasunich did opine:
On Mon, Mar 10, 2014, at 04:55 PM, Gene Heskett wrote:
Continuing this thread of trying to determine what belt I need to
properly fit these pulleys, I have talked to Chris Wood at LMS but he
can't help me with anything but OEM
On Monday 10 March 2014 18:19:45 jeremy youngs did opine:
gene , have a go at this
http://precisionparts.wmberg.com/timingBeltsChains
I am thinking I need a 5mm pitch, 9.5mm wide, 72 cogs long, but they only
go up to 3mm pitch.
Thanks for looking Jeremy.
Cheers, Gene
--
There are four
On Monday 10 March 2014 18:22:18 Brian Morel did opine:
Do you have the LMS part number. I have access to pretty much any kind
of belt through work. I can check tomorrow
The current LMS part number, B01-04 1105, is not the correct part, its
pitch length is a small percentage longer that
On Monday 10 March 2014 18:33:35 Brian Morel did opine:
Yes, the Pitch Dia. is greater than the OD of the sprocket. take a look
at the below link.
http://www.brecoflex.com/index.php?CATID=7SCATID=44
Looks good, till I tried to use the belt selector, my browser or their web
page is broken
Gene:
It seems like you're going about this the hard way.
The first step is to identify the belt family. Look at the
shape of the teeth on the belt. Are they round, or
trapezoidal? Take a look at the pictures here:
http://www.sdp-si.com/D265/HTML/D265T015.html
Given that your pitch is
On Monday 10 March 2014 20:28:53 John Kasunich did opine:
Gene:
It seems like you're going about this the hard way.
The first step is to identify the belt family. Look at the
shape of the teeth on the belt. Are they round, or
trapezoidal? Take a look at the pictures here:
On 11 March 2014 00:36, Gene Heskett ghesk...@wdtv.com wrote:
No mark of that sort POM in one of the casting webs is it.
Looks like pretty fresh casting to
me. In some sort of black ABS?
It's POM :-)
http://en.wikipedia.org/wiki/Polyoxymethylene
One trade-name for POM is Delrin
--
atp
On Mon, Mar 10, 2014, at 08:36 PM, Gene Heskett wrote:
On Monday 10 March 2014 20:28:53 John Kasunich did opine:
HTD: PD = 1.880 OD = 1.835
GT2: PD = 1.880 OD = 1.835
XL: PD = 1.910 OD = 1.890
T5: PD = 1.880 OD = 1.848
Ok, what happens when the pulley OD is (across the teeth)
On 03/10/2014 03:55 PM, Gene Heskett wrote:
The standard Imperial belts are .080 (MXL), .200 (XL) and
.375 (L). The standard metric belts are 3, 5 and 10 mm,
but I used some pulleys that needed 2 mm belts, and didn't
know until I found the belts walking the teeth of the pulleys.
Those are about
Sorry to come into the discussion so late.
The metric belts seem to have round teeth while the imperial have
trapezoidal.
Can you check which they are.
Bill
--
Learn Graph Databases - Download FREE O'Reilly
This struck my interest as I deal with a lot of timing belts at work. There
are some rarer trapezoidal profile with 5mm pitch. I just looked at my little
7x lathe and it has the same belt ( 1.5x70 ). I'm not going to be using my
lathe until the weather turns, so tomorrow night I'll pull the
On Monday 10 March 2014 20:46:27 Gene Heskett did opine:
On Monday 10 March 2014 20:28:53 John Kasunich did opine:
Gene:
It seems like you're going about this the hard way.
The first step is to identify the belt family. Look at the
shape of the teeth on the belt. Are they round,
On Monday 10 March 2014 22:51:58 andy pugh did opine:
On 11 March 2014 00:36, Gene Heskett ghesk...@wdtv.com wrote:
No mark of that sort POM in one of the casting webs is it.
Looks like pretty fresh casting to
me. In some sort of black ABS?
It's POM :-)
On Monday 10 March 2014 22:55:43 John Kasunich did opine:
On Mon, Mar 10, 2014, at 08:36 PM, Gene Heskett wrote:
On Monday 10 March 2014 20:28:53 John Kasunich did opine:
HTD: PD = 1.880 OD = 1.835
GT2: PD = 1.880 OD = 1.835
XL: PD = 1.910 OD = 1.890
T5: PD = 1.880 OD = 1.848
On Monday 10 March 2014 23:10:06 Bill did opine:
Sorry to come into the discussion so late.
The metric belts seem to have round teeth while the imperial have
trapezoidal.
Can you check which they are.
Bill
Definitely trapezoidal Bill, thanks. See my msg to JK, the darned thing has
Greetings;
I have no clue why, but the replacement belt I got from LMS to replace the
one I burnt some cogs out of, is now too short by at least 2, maybe 4
teeth. I find that by the time I get the motor leveled and the belt
running true, the far end of the motor with the flywheel is going to
On 03/09/2014 10:20 PM, Gene Heskett wrote:
Greetings;
I have no clue why, but the replacement belt I got from LMS to replace the
one I burnt some cogs out of, is now too short by at least 2, maybe 4
teeth.
Try to make sure the belt fits the pulley properly. The
difference between
metric
On 03/09/2014 10:20 PM, Gene Heskett wrote:
Greetings;
I have no clue why, but the replacement belt I got from LMS to replace the
one I burnt some cogs out of, is now too short by at least 2, maybe 4
teeth.
Try to make sure the belt fits the pulley properly. The
difference between
metric
On Monday 10 March 2014 01:05:49 Jon Elson did opine:
On 03/09/2014 10:20 PM, Gene Heskett wrote:
Greetings;
I have no clue why, but the replacement belt I got from LMS to replace
the one I burnt some cogs out of, is now too short by at least 2,
maybe 4 teeth.
Try to make sure the
On Monday 10 March 2014 01:34:28 Jon Elson did opine:
On 03/09/2014 10:20 PM, Gene Heskett wrote:
Greetings;
I have no clue why, but the replacement belt I got from LMS to replace
the one I burnt some cogs out of, is now too short by at least 2,
maybe 4 teeth.
Try to make sure the
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