Indeed! Poly-Vee belts are acceptably quiet but of course then you need
to rig an encoder.
Probably a decent trade off. Available, not too expensive, transfer
power well and seem to last.
Years ago I made both of my pulleys.
Dave
On 7/4/22 10:05 AM, andy pugh wrote:
On Mon, 4 Jul 2022 at
You need t take several steps
1) verify the belt and pulleys have the same tooth profile. They need to
match exactly.
2) if the profile is "square teeth" then yes, these are noisy. Decide if
you want to spend the $$ to change the profile because no amount of
adjustment will make a square tooth
Regarding belt tension. Goal is to get engagement with the minimum amount
of tension. This ensures the bearings on motor and driven pulley shafts
are not overloaded.
I work with very large bearing and or bushed machines. (Crushing
equipment). Standard rule of thumb is 1/64” of deflection per
On Mon, 4 Jul 2022 at 17:04, John Figie wrote:
> > https://www.roll-ring.com/?lang=en
> >
> Andy, That is a nice idea. However in my case I don't think I would
> have clearance.
It could go at the bottom, nearer the drive motor.
The belt on my Holbrook is a rather wide poly-vee. Very quiet. I
On 7/4/22 12:03, John Figie wrote:
John Figie
On Mon, Jul 4, 2022 at 9:02 AM gene heskett wrote:
Having watched and listened to the movie, I'm of the opinion the tooth
profile of the belt doesn't match the pulleys. Whether that's from wear, or
tooth profile miss-match yet to be determined.
That's pretty cool!
John
> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: July-04-22 2:06 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Clausing NC Spindle drive belt tension and noise.
>
> On Mon, 4 Jul 2022 at 0
If it quiets down with pressure applied to the back of the belt, something
like this might do the trick.
NewYall Serpentine Accessory - Tensor de correa
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NewYall Serpentine Accessory - Tensor de correa
Tensor de correa de transmisión de accesorios serpentina
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John Figie
On Mon, Jul 4, 2022 at 9:02 AM gene heskett wrote:
>
>
> Having watched and listened to the movie, I'm of the opinion the tooth
> profile of the belt doesn't match the pulleys. Whether that's from wear, or
> tooth profile miss-match yet to be determined.
I think the belt is pretty
On Mon, 4 Jul 2022 at 15:02, gene heskett wrote:
> > https://www.roll-ring.com/?lang=en
> >
> That's a decent idea, but I would not use it anyplace where the additional
> backlash would be detrimental.
It doesn't add any backlash, but nor does it reduce it at all.
--
atp
"A motorcycle is a
On 7/4/22 05:10, andy pugh wrote:
On Mon, 4 Jul 2022 at 05:55, Roland Jollivet wrote:
If the noise is from the belt whipping, then lightly press a rod, or two,
on the back of the belt to see the effect on the noise
If you have a 3D printer, you could try making a floating tensioner:
On Mon, 4 Jul 2022 at 05:55, Roland Jollivet wrote:
>
> If the noise is from the belt whipping, then lightly press a rod, or two,
> on the back of the belt to see the effect on the noise
If you have a 3D printer, you could try making a floating tensioner:
https://www.roll-ring.com/?lang=en
--
If the noise is from the belt whipping, then lightly press a rod, or two,
on the back of the belt to see the effect on the noise. Be careful...
So if it helps, you could add two 50mm bearinged idlers on the outside of
the belt. Maybe use those two holes I see to mount.
On Sun, 3 Jul 2022 at
On Sun, Jul 3, 2022 at 3:29 PM Stuart Stevenson wrote:
> Maybe the (excess?) noise is from the belt and pulleys not matching.
>
Is that visible in the photo? I tried to look but could not identify the
belt. But yes certainly if miss-matched then replace everything with a
modern design tooth
Maybe the (excess?) noise is from the belt and pulleys not matching.
On Sun, Jul 3, 2022, 4:59 PM Chris Albertson
wrote:
> The best information about timing belts will come from the belt
> manufacturer's web site or from a belt reseller like https://sdp-si.com/
> SDP-SI
The best information about timing belts will come from the belt
manufacturer's web site or from a belt reseller like https://sdp-si.com/
SDP-SI has a lot of good theory-based articles on belts and belt tension
and so on.
One thing to know is that the older belt designs used trapezoid teeth. The
John Figie
3:18 PM (1 hour ago)
to emc-users
I am back to making slow forward progress on the Clausing NC since
putting on hold back in March. The lathe came with the 5HP motor
already mounted and I have kept this as is from the previous owner
that gave up on the retrofit. The original lathe
I am back to making slow forward progress on the Clausing NC since
putting on hold back in March. The lathe came with the 5HP motor
already mounted and I have kept this as is from the previous owner
that gave up on the retrofit. The original lathe had a mechanical
variable speed drive with
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