Delrin is the best plastic for turning on a CNC lathe lathe. It is easy to turn, although it requires slow speeds. I use this material to make Scottish small pipes chanters. I have ordered countless items from iPlastic. Smaller parts always ship quickly and everything is always well packed. I have never had an issue with an order.
Between the Delrin and Acetal rods, both materials are incredibly durable and easily machinable, and they have very similar physical properties. They appear the same, but in practical uses there are a few differences that can make one preferable than the other. It also depends on your application. As with any plastic materials, make sure to check the typical properties data sheet for the applicable properties you may need for your application.
Our Acetal Sheet is definitely our choice material for machining,giving an nice finish both on manual and CNC Machines. Its got a very low moisture absorption making it the ideal grade for food contact and where the dimensional stability is critical. Acetal Sheet has the best combination of high mechanical strength, hardness and toughness, giving it superb sliding properties, electrical insulation, and wear resistance.
Acetal Sheet has many applications and is particularly valued in the food preparation industry. Because of its low moisture absorption it helped it to achieve Food & Drug Administration approval in addition to its superb sliding abilities which help with very low friction and hard wearing food safe components.
Acetal Sheet stock, perhaps the best of the plastics used within the auto industry because of its long term dimensional stability and toughness. It offers solutions for designers to help them produce long lasting and very durable components. Another popular area for Acetal Sheet is in marine applications. This environment suits acetal quite because the low moisture absorption results in components that will not expand or change dimensions due to contact with water.