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Let's undertake yet another project - Jackson No. 2 Vertical Milling Machine

TorontoBuilder

TorontoBuilder

Sapientia et Doctrina Stabilitas
So another local Ontario member @OliverTO tipped me off to an elderly gentleman who needed someone to take over his mill restoration.

This guy Richard has been restoring lathes and such in his 6th floor condo. Bless the fellow for his resourcefulness and condo outside the GTA that has multiple bedrooms and more than 400 ft2.

Anyway, he had the mill mostly disassembled, the spindle is still apart, and the gibs and table are not attached, just sitting on the knee.

Going to pick this up in a few weeks. It figures that I've already table apart my long flat dolly... I'd have laid this flat and wheeled it outside. up ramp into trailer.

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this table makes me weep... but I can fix it. old guy said, not a problem, that's where the vise goes. I forgot to take a pic of the vise, it is really nice. Also got B&S to ER collet adapter with this so no trying to source hard to find collets.

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I am redoing his paint, because he didn't sand and block the finish and used a brush. I just can't...

Supposed to look like this when complete:

img0.jpg
 
architect said:
Regulated by building code of the province.

For Ontario: https://www.ontario.ca/laws/regulation/120332 4.1.5.3. Full and Partial Loading
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First the national building code, then provincial ones, then local ones. They are all in metric now, and the minimum floor rating for multi-unit residential has been 1.6 MPa. That's the average strength across a wide area, but the concrete itself must have a bearing capacity of at least 25 MPa - so the 'feet' of the mill have to cover about 0.2 square inches to avoid punching through the concrete.

It looks like it might be a major issue, but it is more likely that you will have an issue with the concrete in your garage / basement than in an engineered building
 
mbond said:
First the national building code, then provincial ones, then local ones. They are all in metric now, and the minimum floor rating for multi-unit residential has been 1.6 MPa. That's the average strength across a wide area, but the concrete itself must have a bearing capacity of at least 25 MPa - so the 'feet' of the mill have to cover about 0.2 square inches to avoid punching through the concrete.

It looks like it might be a major issue, but it is more likely that you will have an issue with the concrete in your garage / basement than in an engineered building
Click to expand...

The building appears to have been built in the late 1970s or early to mid 1980s, using continuous slipform construction, fully engineered design. The parquet flooring is glued right to the concrete floor. The weight is borne by 4 round leveling feet with total area of 28 square inches. They dont even dent the wood floor.

But as a gag it would be fun to make some dummy blocks that say 250 lbs to toss into the elevator too
 
mbond said:
First the national building code, then provincial ones, then local ones.
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Building construction regulation is a provincial responsibility under the constitution. The NBC is a model by the National Research Council and has no legal bearing. Each province adapts the national model code to suit and into legal status, so will have variation across provinces. Before the NBC, some municipalities developed their own building "bylaws".

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Yes, the most local regulations are the ones that apply - municipal or provincial. The NBC was designed to make it easier for local regulators - especially during the metric conversion under Trudeau the elder.

But all of these codes have gaps, and there is frequently a need to consult the equivalent US code on which the CA codes are usually based. My wife is a practicing civil engineer and I hear her complain about to poor quality of the code all the time. I studied it in engineering school, but she uses it everyday
 
TorontoBuilder said:
The building appears to have been built in the late 1970s or early to mid 1980s, using continuous slipform construction, fully engineered design. The parquet flooring is glued right to the concrete floor. The weight is borne by 4 round leveling feet with total area of 28 square inches. They dont even dent the wood floor.

But as a gag it would be fun to make some dummy blocks that say 250 lbs to toss into the elevator too
Click to expand...
IIRC they changed the units to metric, but the basic limits were established in the 1920's during the first rush of sky scraper building.
 
mbond said:
Yes, the most local regulations are the ones that apply - municipal or provincial. The NBC was designed to make it easier for local regulators - especially during the metric conversion under Trudeau the elder.

But all of these codes have gaps, and there is frequently a need to consult the equivalent US code on which the CA codes are usually based. My wife is a practicing civil engineer and I hear her complain about to poor quality of the code all the time. I studied it in engineering school, but she uses it everyday
Click to expand...

Perhaps we're talking about different things? Are you talking about best practice? I'm referring to law, the reason why people don't do something or else you face fines or jail time. The laws of another province, or country, have no bearing in condo building built in Ontario. There is no municipal "building code" today, only bylaws that complement the provincial building code. City of Toronto inspectors enforce the Ontario Building Code.
 
Yes, I think we are agreeing

Part of an engineer's professional obligations are to handle situations not covered directly in the building code using any and all resources available and applying judgement. After all, once they stamp a design they are assuming personal responsibility
 
mbond said:
Yes, the most local regulations are the ones that apply - municipal or provincial. The NBC was designed to make it easier for local regulators - especially during the metric conversion under Trudeau the elder.

But all of these codes have gaps, and there is frequently a need to consult the equivalent US code on which the CA codes are usually based. My wife is a practicing civil engineer and I hear her complain about to poor quality of the code all the time. I studied it in engineering school, but she uses it everyday
Click to expand...
I participated on code consultation panels for years. I know of no gaps where we had to go to the US to fill them.

Performance based codes really leave no gaps but an unlimited potential number of solutions
 
TorontoBuilder said:
I participated on code consultation panels for years. I know of no gaps where we had to go to the US to fill them.

Performance based codes really leave no gaps but an unlimited potential number of solutions
Click to expand...
An example is post-tensioned concrete structures. Especially with respect to construction staging and long term durability.
 
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