The phrase "a different design but" is correct and usable in written English.
It can be used when contrasting two designs, indicating that while one design is different, there is an additional point or consideration to be made.
Example: "We decided to go with a different design but still kept the original color scheme to maintain brand identity."
Alternatives: "an alternative design yet" or "a distinct design however".
Using a different design card stock but complementing the other, cover the binding of the notebook.
Each fort had a slightly different design, but as a group they shared common features, with the fortification formed around a number of compact lobes, often in a quatrefoil or trefoil shape, designed to give the guns a 360 degree angle of fire.
Dr. Winzeler's group used a commercial chip system, developed by Affymetrix, that has a very different design but performed the same task, that of signaling when a given gene is active in the parasite.
Imperator Nikolai I was originally going to be built to a completely different design, but this was changed at the last minute to a modified version of the Imperator Aleksandr II design, so there were significant differences between the two ships.
We have previously reported results of analyses between women's reproductive histories and mortality (from age 50) and long-term illness in 1991, using the same data set but a different design and sample and taking account of factors such as length of birth intervals and timing of first and last births but not detailed marital history [ 39].
People will look at an error and say, 'I didn't know there was another item that was close, but with a different design.' " "So there's a serendipity factor here," Mr. Shah added.
Other devices and major services will soon all support the same emojis, but with a different design.
Thick- (screen-printed carbon electrode) and thin-film (sputtered gold film) electrodes have also been employed with this configuration, but with a different design that allowed the rapid replacement of the electrode.
Delta prints the same material as MakerBot, the same plastic as Legos, but has a different design.
