Myth Busting

Are your blanks made of PVC?

Absolutely not. Using a diamond to cut PVC will destroy your diamond. Also, PVC is extremely hazardous due to the release of toxic fumes when using a laser CNC to cut sheets of PVC. You are, and always have, cut onto PETG, whether it's a clear PETG layer of 100 microns on a colored disc or a solid PETG disc. Spinner Town Blanks discs are made from solid PETG sheets, this means that you chip/swarf will match the disc's colour. We find it crucial to clarify this, as some suppliers may claim their discs are PVC to discourage DIY attempts and maintain a monopoly. However, after receiving inquiries about laser cutting PVC based on claims made by other suppliers, we prioritise providing accurate information for people's safety and well-being.

 

Do you require heat lamps when cutting PETG?

No, heat lamps are unnecessary. PETG will cut at room temperature without issue. In fact, using heat lamps can lead to static buildup due to excessive heat drying the air around the disc. PETG softens at around 85 degrees Celsius, rendering the use of heat lamps ineffective and unnecessary in all cases. Ensure that the working environment is comfortable and moderately warm, ideally around 25 degrees Celsius. Excessive warmth can also reduce humidity, which is crucial for preventing static-related problems. This guideline applies to all other lathe cutting discs as well. If a diamond can cut it, it's PETG, and these principles remain the same.

 

Do lathe cuts sound worse than pressed records?

The quality of cuts depends on both the cutter and the cutting system used. While discs are essentially plastic, just like a pressed record, there's a widespread belief that lacquer masters offer the highest fidelity with the lowest noise floor. Whilst this is likely true, not all cuts are created equal. For instance, we've experienced superior audio quality from PETG discs cut with a Caruso head compared to the same audio released on pressed records. So, it's incorrect to assert that lathe cuts are inherently inferior to pressings. 

One thing to bare in mind, PETG is now used for pressings using injection moulding and called 'bio' or 'eco' vinyl. So if you hear that the sound of PETG is bad, it's just another myth.