Author Topic: Signature Plastics' new SA-P tooling  (Read 40101 times)

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Offline SMKNGNZ

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Signature Plastics' new SA-P tooling
« on: Wed, 17 January 2018, 17:53:39 »
Over the past several months we have been building new SA sculptured PBT tooling that will be used exclusively for sublimation printing.
Our original SA tooling was designed for ABS which has a different shrink rate than PBT. It was also designed to accept a first shot insert. The number one rule in designing a tool for injection molding is to have uniform wall thickness throughout the part, as much as possible, or there will be uneven cooling and shrinkage in the part resulting in sink and bowed walls. This new SA-P tooling has thick, uniform walls, and is designed for PBT shrink. The key profiles will look identical to the original SA tooling however the finish will have a very fine matte finish as opposed to the more glossy 2-shot tooling. One benefit of this slightly textured finish is the keys will not scratch as easily.
We will have more information on this new tooling once we begin first article testing. We hope to have it ready for production in April. 

Offline topicfossil

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Re: Signature Plastics' new SA-P tooling
« Reply #1 on: Mon, 11 November 2024, 20:04:39 »
It sounds like you've made some thoughtful design improvements for the new SA sculptured PBT tooling! Shifting from ABS to PBT involves more than just material changes, especially given the different shrink rates and material behaviors, so having thick, uniform walls to control cooling and shrinkage will undoubtedly lead to a more consistent and durable product. The choice to add a fine matte finish is also a nice touch, as it will enhance scratch resistance and likely provide a premium feel without the added gloss of traditional ABS keycaps. April for first article testing is exciting! Once you have results, it would be interesting to see how the sublimation printing quality holds up on PBT with this new tooling, as that’s a big draw for enthusiasts seeking high-quality, long-lasting legends on keycaps.

Offline Surefoot

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Re: Signature Plastics' new SA-P tooling
« Reply #2 on: Mon, 11 November 2024, 23:05:49 »
April for first article testing is exciting!
It was more than 6 years ago.

Offline dvorcol

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Re: Signature Plastics' new SA-P tooling
« Reply #3 on: Tue, 12 November 2024, 14:48:27 »
April for first article testing is exciting!
It was more than 6 years ago.

SA-P Snow Cap is currently in stock - https://spkeyboards.com/collections/sa-p-snow-cap-alphas