Recent content by MattH

Fortunately, they're sitting on top of a wall that separates outdoors from indoors on the floor below. How much would you expect that to increase the psf? 250 sq. ft., not psf. 250 sqft x 40psf = 10k lbs, which I'm way below. But, admittedly, the weight of my stuff isn't equally distributed...

Ah, I was worried about that: https://www.garagejournal.com/forum/threads/determine-floor-load-bearing-capacity.519683/.

I have an electronics lab in a second floor house bedroom. I currently have 4 server racks, probably each around 500-600lbs (loaded) and enough equipment to fill up another 2 racks. This is starting to get me worried about how much weight this floor can take. I saw that residential floors are...

I live in a duplex on the second floor. I recently picked up a 42U server cabinet that I had to carry up a set of stairs to my office. After shedding the doors and the side panels, my fiancee and I were able to carry this up our stairs. I didn't find it overly difficult, but she was struggling...

It's more a hobby and interest than anything else. I'm an electrical engineer and like working with and developing precise frequency references and ways to measure these frequency sources. The accuracy of some of the equipment I use for other stuff (like radar development, which is what I do...

Positioning is just one of the applications of GNSS; timing is another and that's what I use it for. You can discipline a clock to the very precise atomic clocks onboard the GNSS satellites. If you're curious, you can read about this here.

Hi Jeff, I've attached pictures of both antennas I currently plan to use. Any other antennas I use would almost certainly be smaller than this. The dimensions of the first antenna are: 343mm diameter, 93mm height, 1.3kg. For the 2nd antenna: 185mm diameter, 69mm height, 0.5kg. I'll need to...

I'd like to install a GNSS antenna on my roof and would appreciate advice on the safest way to do this, as I've never worked on a roof before. I've attached two pictures showing the roof and the easiest access point to it. The best location for the antenna in terms of signal quality is the flat...

These look nice, and are similar to what I've been looking for. The one issue with the Navepoint rack that I'm using is that those don't really look wide enough based on the equipment width and distance between interior mounting holes. Those do look like they'd be subject to the same twisting...

True, the 1U are not 110lbs and I could use different rails for those, opening up the possibility of using rails with a longer vertical edge (and a higher screw attachment point for reduced twisting). I did like the idea of having the same rail for all units, but if the current design is...

This is actually ok. Hopefully the dimensions I provided in my 2nd post clarify why this works. I have tested this and the fit works well. It's actually about 1.25" overlap on each side. I also don't like the fact that the instrument weight will produce a twisting action on the rails, but it...

I spent a bit of time looking, and wasn't able to find any commercial options that worked (more detail below). But, if you do know of a product that's suitable and reasonably priced, I would be thrilled to use that avoid all this work. Some of the requirements for these rails are: - Must fully...

I'm building rails for a server rack (19-inch rack) and would appreciate critique and feedback on my plan before I get too far into this process. I have almost no experience doing these types of things and would like to be saved from making stupid mistakes and wasting money and time. I've...

Yeah I originally considered asking that. But, they seem quite protective of their place (it was their home for many years, and I get the sense they may want to move back in at some point) and I'm worried they'll be off-put if my 2nd interaction with them is asking to make permanent changes to...

I'll be moving into a rental soon. The room I'll use as my office space is carpeted and I'd much prefer to have hardwood (or vinyl plank, etc.). I searched around a bit online and there are quite a few posts where people describe how to install vinyl plank over carpet. The rough procedure is to...