WoodCentral Forums

Est. 1998 — 27 years of woodworking knowledge

Rapprochement *PICS*

Posts

Rapprochement *PICS*

#1

Rapprochement *PICS*

WoodburnBob

>This week I'm off work. I can't get a damn thing done. Monday I caved in and called to get an appointment for that right of passage called colonoscopy. They took all my serial numbers via phone, certified my capacity for "reimbursement", and now I'm just waiting to find out my departure date. And waiting. And waiting.

So here's a shot showing you some mostly familiar objects. Take a close look at the discoid gizzmo with the "10". I made it from something you probably have collecting dust in your garage.


A couple years ago I submitted to routine "fact finding" sigmoidoscopy which yielded, what else, a polyp. It was "biopsied" benign but not removed and I was instructed to have a colonoscopy to remove it and "look for more" beyond the reach of a "mere" sigmoidoscope. Yes, I've put off said colonoscopy for a couple years now...using my highly tuned capacity for denial and distraction. But I have to go in for yet another yearly internist's maintainence check in October and I can't bear the prospect of another earnest display of evangelism.

Thus, my caving in.

So, right now, this week, my denial and distraction capacities are failing me as I simply wait for the gastroenterologist's office to call back the date and time of doom. Shit.

To kill some more time, I thought I'd make a contribution to global bandwidth by way of illustrating the production of a cast-iron sharpening plate from a bar-bell weight. But I can't get it together (initiative deficit) to go out and do another one for step by step photos. What really does it matter anyway.


This disk with a "10" in it was formly a ten pound bar bell weight. I mounted it on the lathe and turned it down flat. This is a trivial task if you don't mind the grime and mess of cast iron powder and it's clean-up. One thickness cut and a final finishing cut. I could have gotten the surface smoother (shinier)but I was actually interested in having a little roughness to help hold the abrasive particles...probably a stupid (counterproductive) idea given the size of the particles.


Right now I have Tormek honing compound on one side...which I believe is a ceramic in the vicinity of 3 microns or so. On the other side I have diamond compound labeled at 1/4 micron...but how would I know for sure. I've used the plate with plane irons and a few chisels. It works okay. But I have my doubts about overkill in many endeavors.

Please, if you must respond to the bowel content, keep the sympathy and testimonials to a minimum. None would be best. It will only scare me more if you pour out any condolement.

Re: Rapprochement *PICS*

#2

Re: Rapprochement *PICS*

Sean Evoy

>Bob,

You said you turned the plate on your lathe? I admit I have little metal working experience but what type of tools do you need to turn hard metals like cast iron? Somehow, I doubt you are using a HSS parting tool! Can a normal woodworking lathe do light-duty metal work, or do you have a dedicated metal working setup?

Re: Rapprochement *PICS*

#4

Re: Rapprochement *PICS*

WoodburnBob

>Sean, before 3 years ago I knew nothing of metalworking and machine tools, absolutely nothing. It's opened up a large world for me and greatly expands my interest and abilities in woodworking tools. Anyone can teach himself this stuff in short order...sort of.

The simplest lathe tool is a piece of HSS steel, eg. rectangular 1/4" X 1/4" X 4". Cost: about $1. Lasts a very long time. I suspect that's what I used here. Perhaps I used a cheap import carbide bit, same size, same cost, just a thick waffer of carbide brazed to one corner of a 1/4" X 1/4" X 4" shank. Of course the commercial guys use much more sophisticated bits and cutters and holders, etc. etc.

"Can a normal woodworking lathe do light-duty metal work, or do you have a dedicated metal working setup?" As sure as I say you need a metal lathe, someone will describe how they used a modified woodlathe to build a Boeing jet.

I have a tight little home machinist South Bend (lathe) 9" Model A in the basement. I use it to teach myself, experiment and do most of my real world projects. I think that is what I used on this plate. In the garage I have a Logan 14" weighing in at 3/4 ton or so. I mess around with it on really big things, but it still scares me a little sometimes. Very powerful. I can think of a half dozen ways it could kill a man or horse in a split second. It was one of those impulse "bargain" buys.

If you're interested in this sort of thing, the smartest thing you could do would be to scour the neighborhoood in which you live for a home machinist guy who might trade for little 30 minute jobs like this. I shudder to think what a shop might ask for something like this.

Re: Rapprochement *PICS*

#5

Odorless thin paraffin lamp oil honing lubricant

WoodburnBob

>

Re: Rapprochement *PICS*

#6

Re: Rapprochement *PICS*

Sean Evoy

>Actually, one of my closest friend knows a bunch of the "Boeing Jet from scrap metal types". One of them bought a milling machine and I intend to enlist his help to make some skewed plane-maker's floats. Thanks for the suggestions.

👍 This page answered my questions

Your vote helps other woodworkers quickly find the answers and techniques that actually work in the shop.