Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
A Check clamp frame is tight and both front/rear clamps are correctly adjusted. Check material being used is extruded NOT cast. Cast material is not suitable for vacuum forming with single heater machines. Check the sheet size is large enough and has sufficient clamping area. Insufficient heat time.
