Author Topic: Pianet Sticky Pad Issues  (Read 91 times)

Offline theseacowexists

  • Pre-Piano
  • *
  • Posts: 6
    • View Profile
Pianet Sticky Pad Issues
« on: October 11, 2017, 11:28:50 AM »
Has anyone else ever had issues with their 'sandwich' style Pianet replacement pads?  I'm having trouble with a brand new set where the foam itself is tearing apart.  Could they be too sticky?  Keyshafts sitting too low?  Just wanted to see if anyone else has had these issues, since I have not read about anything like this happening with brand new pads. 

On a slightly related note, what methods are there to adjust the height of the keyshafts, short of buying the clavinet.com tool?

Offline OZDOC

  • Mark I
  • ****
  • Posts: 142
    • View Profile
Re: Pianet Sticky Pad Issues
« Reply #1 on: October 11, 2017, 05:20:21 PM »
On the foam failure - you should talk this through directly with the supplier to sort out whether it is a material failure or something in your instrument.

Pianet pad shafts should always be perfectly straight. If they have been bent by a previous owner to accommodate plastic pads then they should be straightened back to their original condition.

Bending shafts was never part of the original instrument requirement and has only come about in recent years as a result of non-foam pads. Non-foam pads are known to cause static discharge issues in Pianets.

Offline theseacowexists

  • Pre-Piano
  • *
  • Posts: 6
    • View Profile
Re: Pianet Sticky Pad Issues
« Reply #2 on: October 12, 2017, 10:47:19 AM »
So if the shaft is straight, is it acceptable for the foam to compress as the pad rests on the reed?

Offline OZDOC

  • Mark I
  • ****
  • Posts: 142
    • View Profile
Re: Pianet Sticky Pad Issues
« Reply #3 on: October 12, 2017, 05:10:41 PM »
Yes, that is what it is supposed to do.
Can you post a photo so that we can see what you are concerned about?

Offline theseacowexists

  • Pre-Piano
  • *
  • Posts: 6
    • View Profile
Re: Pianet Sticky Pad Issues
« Reply #4 on: October 14, 2017, 02:38:28 PM »
The first image shows the first few keys on the bass side of the keyboard.  The shafts seem to be straight for the most part.  All across the keyboard, the black keys seem to sit a bit lower than the white keys.  The pads first started tearing on the black keys, but now it seems to have been happening just as much with the white keys.  The second image shows my finger on a key that sits particularly low, I was trying to get a shot of how compressed the foam was.  The final image shows two of the torn pads.

Below is a link to a video of one of the black keys being played.  When I depress the key slowly, you can see how the foam kind of stretches before the pad releases from the reed.  Not as noticeable when I depress the key quickly (normal playing style). 




https://youtu.be/pGefP1qbW30

Offline OZDOC

  • Mark I
  • ****
  • Posts: 142
    • View Profile
Re: Pianet Sticky Pad Issues
« Reply #5 on: October 14, 2017, 07:57:42 PM »
Firstly, the shafts should be straight - so don't alter this.
Because they are made from aluminium they are relatively easy to bend - so there is some chance that a previous tech has slightly bent rods to align with reeds - rather than adjusting the reed.
When this was new the blue felt would have been uncompressed under all the shafts and held the pads a little higher - but this should not be an issue.
The copper wire that has been laid on the felt is not part of the original equipment - and because it has the effect of preventing the rod from sitting as low on the felt as it originally would it may be that someone has pressed heavily of each rod to get them to embed in the felt so that each pad makes contact with the reed again.
This earthing wire and the copper ribbon on the rods are both things that became part of Pianet servicing while the only commercially available replacement pads were solid silicone (similar to the Pianet T pads). These solid plastic pads in the Pianet N cause tribocharging - the generation of an electrical spark as the pads rise. The copper earths were a way of reducing the severity of this and should not be necessary with authentic replica foam and leather pads.
In your video the compression and stretching of the pads on lowering and raising is exactly what is supposed to happen.
I have Ken Rich pads from the first batch he made and replica pads I made myself from before this that have lasted several years.
So you need to talk directly with Ken as it may be that they changed the supplier of the foam and the current batch is of a material that is too mechanically weak for the job. If so you will not be the only one that is having trouble.
The silicone oil that is the wetting adhesive on the leather is available in various strengths but I'd talk to Ken about the foam first.