WTS Kicks Off Launch for Drum Tuning r[E]volution

Product Innovation WTS Denver Product Design Drum Tuning

Denver Product Innovation

WTS Kicks Off Launch for Drum Tuning r[E]volution

Denver, Colorado – Welch Tuning Systems (WTS) tomorrow is releasing the WTS Artistry Series Drum line, featuring the revolutionary Welch Tuning ­­System. ­ A unique product innovation that allows you to tune a drum in 5 seconds or your whole kit in 30 seconds!  This market shaking drum tuning patented product invention is hitting the market now. With the turn of a knob you can even change the pitch of your drums mid-performance.  “I’ve seriously never seen anything that’s so revolutionary…It’s so easy it’s unbelievable.  Take the drums out…and within minutes the whole kit is tuned up and sounds great…” says Chris Sheldon, Professional drummer.


How does this product innovation work?

Each WTS Artistry Series drum features a series of self-adjusting pulleys that allow tension to equalize around the whole drum.  This results in beautifully tuned drums at any pitch.  Since the pulleys are mounted to the drum hoops, this means there is significantly less hardware in contact with the shell and up to 90% less holes drilled in the shell. This allows the drum shells to breathe and resonate to their full potential. There’s only one point of adjustment so it locks the tension for the entire drum.  Now there’s no more tension rods loosening while you play! “After 3 years and countless hours of perfecting this tuning system, I’m so excited to finally be able to launch the Welch Tuning System,” said Patrick Auell, co-founder of Welch Tuning Systems and CEO of Auell Consulting – Denver Product Design. “It’s going to change the drumming world and changing the pitch of a drum mid performance will even open up possibilities of new drumming styles developing.”



The revolutionary product innovation is hitting the market though a Kickstarter crowd funding campaign. The campaign is launching during the NAMM (National Association of Music) conference in Anaheim, CA, January 24-27, 2019.  Wre WTS will have a booth set up to demo one of the first WTS Artistry Series Drum sets.  They are offering the first drums off the production line at a deep discount for a limited time through the Kickstarter.  You can be the first to own your own set of revolutionary WTS Artistry Series Drums and a piece of history in the making.

4 Step Injection Molding Design Guide – Part 1 of 3

Injection molding is a manufacturing process used widely across many industries to create plastic consumer products.  It is used for a wide variety of different products such as bottles, combs, packaging, children’s toys, gardening implements, and much more.  This three part injection molding design guide will help to provide a firm understanding of plastic injection molding basics.

The process of injection molding is fascinating, first plastic granules are loaded in a hopper.  They are heated, mixed and fed through a screw conveyor at a high temperature and pressure into your mold (tool) cavity through a runner system.  The runner system distributes the molten plastic into the mold so that it evenly fills the mold cavity.  The plastic cools and shrinks.  Once the product is cool, ejection pins push your part out of the mold.   .

In this injection molding design guide, we will discuss how part geometry plays a large role in the quality of the end product.  There are many possible defects that can happen during this process.  To minimize these defects, we have compiled a 3 part article to serve as a plastic part design guide.  In this first section of the article we will discuss plastic part geometry design guidelines.

1. Wall Thickness

It is ideal to have a uniform wall thickness. Thick sections of a part can shrink unevenly during the cooling process creating defects such as sink marks, voids, warping, and stresses. The maximum recommended thickness varies for different materials but generally should be in the 2 to 4 mm range. Having a consistent wall thickness can help to avoid these common injection molding defects.

If there is no way to make you part with a uniform wall thickness, then as gradual as possible transition should be used.


2. Draft

Draft is the angle off of parallel from the part’s wall to the direction the mold opens. This is required for injection molded parts so that the part can be removed or released from the mold. Typically a draft angle of 1 to 2 degrees will work with most situations, while a heavily textured surface could require as much as a 5 degree draft.


3. Radius

Radii should be added to all corners of parts. Avoiding sharp corners reduces stress points in your part and allows the molten plastic to fill the mold more evenly.

  1. The radius on the inner side of the part should be at least half the of the wall thickness. Ri= ½*T
  2. The radius on the outside of the part should be the part thickness plus the inside radius. Ro=3/2*T
  3. The radius on rib or boss should be a quarter of the part thickness.


4. Ribs

Ribs are used to create a more rigid part and increase loading capacity. If you desire to increase your parts rigidity and strength, the quantity of ribs should be increased rather than increasing ribs thickness or height.

  1. Thickness of ribs should be 40-60% the wall thickness.
  2. Rib spacing should be at least two times the wall thickness apart.
  3. Rib height should be limited to three times the wall thickness


Read part 2 of our injection molding design guide.