This is a light duty pry bar that can also be a wedge for leveling something while working on it. If you need more height, and don't want to print extras, you can stretch it in the appropriate orientation. The original intent of the hex hole in the rounded end was originally intended to support drive 1/4" hex screwdriver bits, but I'm not a fan of having a pocket full of hex bits myself, so the horizontal expansion that I get in holes has never been something I've worried too much about with this. Also there is the question of how strong the material is for torque forces. There is a minor edge on either side of the nose end of the pri bar. This may be enough to break packing tape. I usually carry 2 with me at all times. One of the reasons it may drop in on it's side rather than vertically is that you will get a (hopefully) smoother wedge. Printing with either side face down is going to give you steps for each layer. This may actually be desirable in some instances, as it means that the wedge doesn't insert a lateral push if you are setting one upside down on the other as part of leveling your work. I will leave how you choose to orient the bar for your preference.
I tend to print these solid. Even with that you end up with a 1-5mm wedge that is made of whatever plastic you print with. You might get good results printing on edge or the larger flat surface with a continuous Fiber fill, I have not tested that. This should print on any printer that has a bed that will give you 5 linear inches in any orientation to print with. I.e. if you happen to have that TronXY X1 with a 4"x4" bed, you should be able to print this on edge diagonally, and possibly oriented flat.
I've printed some of these against one of the long flat edges Taper as a surface, which gives a bit of a cross or diagonal layer pattern which may help with some strength. I have had at least one of these printed flat in PLA break on me when I exceeded the material strength. I don't have a metal printer, and haven't heard all that many good things about sintering filament, but it might work well as a milled project, either with an angle plate, or as stepped milling out of aluminum or one or another variety of steel.
This was one of my early efforts at using FreeCAD, and while not all elements of it worked exactly as I intended, I'm generally happy with it. It's been sitting in my collection for over half a year, and I haven't made any significant changes, but have printed some as handouts when I'm doing handyman work for family. Perhaps I should print some with embossed contact information in the wedge surface? We'll see.
A set of these may be useful for providing support under a warped board that you are running through a surface planer. On it's own, one gives you a lift of about 5mm, but you can stack 2 wedge to wedge for more height, and if you end up cutting two deep, and printed this in PLA, you're unlikely to be doing your planer blades any damage.
One of the more frequent uses of thes for me is to open folded boxes where there is a tab in a slot. This fits nicely in the slot, behind the tab, and allows me to easily pop that tab out of the slot.
They also make a great small piece that you can print one or a dozen of when you see that the filament spool is running out.