The Home Machinist!

Thanks Glenn. Hobart/Diversion 165 so no HF control, no nothing except AC/DC switch, and an amp dial (and a foot pedal). Even gasflow is preprogrammed. Maybe you are correct on my foot control (there's a lot going on with a TIG weld. :) ) So you are saying, give it the beans to form a puddle, then l...

Hi guys, Trying to teach myself aluminum TIG welding. While I'm new to this particular process, I'm ok with other welding, and mild steel on TIG seems to be ok (albeit not great, but, different problems). The issue I am having (I am just practicing on 1/8 aluminum), is once the puddle starts, she st...

I'll be...... So I lopped it off at 2degrees or so. Faced one side so it was straight, chucked one end in the tailstock, and centered the other one in the (previously failed) hole in the material for alignment. Tacked it up for a test. And, upon testing, it cut with barely any effort at all. Now it ...

Yessir (to both your questions).

The broach rotates just fine. I think it just rotates concentrically.

Honestly i think it's just machines as a 'concentric broach', not a wobble broach. hah

Can anyone see the harm in attempting to: 1) Lop the shaft completely off, grind a 1.5deg angle on it 2) Find a way to check centering (install in tailstock with target in the headstock? Or some other apparatus) 3) Weld shaft on with 1.5 degree angle, and end of Broach centered in hole? May not be t...

Thanks for the reply! Well your second solution sounds more to my skill set. I am trying to think of how I would do the first (make an extension), and drill a receiving hole offset, so that the end of the tool is in the center of the workpiece. Compounded by the fact the extension would extrapolate ...

Yes, it is defective. I am trying to think of a quick and simple(ish) way to introduce a bit of wobble.

Hi guys, So I needed to make 2x hex holes in the back of a rod, and actually couldn't find any machine shop around here that could do it (Which I find odd. It doesn't seem like that large of an investment for a machine shop, to me). So, I purchased the cheapest wobble broach holder I could find, and...

Well since this is a 3/4-36spline shaft, maybe I will buy a 3/4 - 36 spline coupler, make the mating plate with a hole in the center, and weld in the (cut off) coupler to remake the square mating plate? Thoughts? My other thoughts, this shaft is a Borgeson I believe. Would other brands of 3/4 - 36 s...

Thanks for all the ideas guys! I appreciate them. (Preface: I believe the female spline plate I have is used, so I have ordered a new one to see if the fit is any tighter). No, there is no human safety issues with this. This is pretty much an experiment for my own curiosity. yes, the splined have to...

That was one of my thoughts but then I'm afraid of 'losing a spline' and them not mating?

Thanks for the responses. I will check sizes/clearances accurately and report back. (JohnR and Liveabroad, there is no RPM or runout. See below. The purposes of these splines is to hold 150lbs-ft, everytime the door is operated (90 degrees, approximately. I suppose for that 90 degrees it would be at...