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-I don't take offense at remarks from strangers. Using the word "terrible" seems a bit strong considering you don't know the intended couple or their situation. -Yes, you don't know how to use one or when it's appropriate? -Well I do, because I know how to use hand tools and get acceptable...

-I'd like to join the discussion but to ask a couple of questions. I've spent most of my life in material subtractive (machining) but little experience with the additive process (3D printing). I've also been a mechanical designer for 15 years using 3D software (CAD) for the job. My reading on...

:headshake

-Since they own a home perhaps a small and a larger pipe wrench for plumbing. A small and a larger claw hammer for nailing. A smaller and larger handsaw for construction and trim work. Maybe a small block plane for minor shaving of surfaces. A few screwdrivers and two (6" & 10") adjustable...

-Cutting through weldments almost always risked trashing the cutter in the process. It may be a faster method to lay fillet for buildup but machining it could be unpredictable (depending upon the filler used). -Seems like more trouble to some but I prefer using new steel too. Laying in a new...

-Thank you for your efforts at keeping this site safe. I can't stand spammers or scammers.

-An interrupted cut is a somewhat common occurrence in boring and lathe work. Does this affect the cut? Yes but we're not aiming for close tolerance work here. There are techniques for close tolerance boring on an interrupted cut but that's a different discussion. -I've made a couple of...

-For fully hardened tool steel you have to go above 400°F to affect the hardness, that's the beginning of the chemical reaction for the tempering range. Doubtful the tool will reach anywhere near that temperature, the number of heat cycles should have no effect. For example; How many heat cycles...

-Is this a taper pipe thread or a straight pipe thread? It makes a difference. -You're not looking with the right designation, I found some readily available.

-Not to be contentious but I have on occasion done boring with a fly cutter when the shop boring head was incapable of reaching the diameter required. A square HSS bit and tedious advancement of the cut achieved a final +/- .0015 tolerance. It's a PITA but that was the best option -A round...

-It appears (to my eyes) as though somebody has already had a go at some problems by welding....and wasn't very good at it. Tubing insert/inlay? You'd want a real thick wall tubing to avoid distortion and the material most tubing is made from is on the soft side IMO for a pivot surface. I don't...

-It would appear that you use the same organizational system that I do. Great minds think alike?

-Do the hooks need to be aligned to one on the other side? Seems like it would but your photos don't show a pair. Is taking the frame components off to machine them possible? The "pins" need a similar but different solution. -If there's a working pair then this needs to be part of the solution...

-If it helped then I'm glad I took the time to write it.

-I don't own either but have been using twist drills for several decades in machine shops. There's a considerable price difference between the two sets, both should clearly state that they're HSS. The more expensive set should have the addition of cobalt but no mention of it in the description...

-There are two basic types of vertical jig borers, neither will do what you mentioned in your first post. The single column type (Moore, Linley, etc.) don't do well with side loading from an end mill. Plunge milling they might do ok for smaller diameters. The gantry type (SIP, Mitsui, DIXI...

-Big factor here if renting. You sure don't want to be in a situation (renting) that might require you to move a floor model mill more than once or twice. Even then, you'd be stuck with a 2,000 pound boat anchor to provide for in rental choices. A bench top is best for now. -Wouldn't suggest...

+1 on using better quality jack stands. Those stamped steel jack stands rely on the welds to hold them together, some have been known to fail. This is especially relevant if you're going to be underneath the vehicle. Be safe, live to tell the tale.

-I've had over 35 years of machine shop experience and have some opinions regarding machinery. Do bear in mind that if I state an opinion it's just that....an opinion. Your situation/circumstances/expectations/budget will dictate your choices. Having qualified all that: -You've stated that you...

-Welcome to the site from the foothills of Appalachia