Design on jtslay.com

LILYGO T-ECHO Antenna Spacer

Sun, 17 May 2026 00:00:00 +0000

I designed this to fill the space between the antenna and the housing. This provides some extra support as well. I chose to print in an accent color which may be helpful if you have multiple devices.

Printables | Onshape

Cheap Desiccant Setup

Thu, 07 Nov 2024 00:00:00 +0000

After doing some research, I discovered that there is an alternative to silica that’s more effective¹: activated alumina. It’s relatively cheap when bought in bulk and can be regenerated easily in a normal oven. I discovered others had gone down this path before me and that quite a few were using powder shakers as desiccant containers that were all-metal and therefore oven-safe. For around $2.50, you can make a super effective desiccant pack that compares with some retail options that are 8x the cost!² When they become ineffective at maintaining low humidity you can recharge them by tossing them in the oven at 400°F for a couple hours.

Onshape: Adding threads with ThreadLab

Sat, 13 Jan 2024 00:00:00 +0000

Coming from Fusion 360, I was a little disappointed to see so many tutorials for threads in Onshape going deep into the details of thread geometry. If you’ve never built threads this way, I’d encourage it at least once because you will learn a lot and appreciate how much complexity there is with threads.

Thankfully you don’t have to learn all of this to make perfect threads! The ThreadLab FeatureScript by Anthony Lu makes this about as simple as possible.