Finally a workshop/storage/mancave

Joined
May 25, 2010
Messages
3,003
Location
The Netherlands, In the Market Garden area
 
 
@waiting for time, question for you on scraping the mill. How do you ensure your x and y ways are parallel to each other, and your z ways are perpendicular to both of them? Scraping with the surface plate as a reference obviously produces individual flat surfaces, but how do you check that the different flat surfaces are parallel/perpendicular each other? Is the flatness tolerance of these machines just so much tighter than the parallel/perpendicular tolerances that you don't really have to worry about affecting their parallelism/perpendicularity when you remove material to make each surface flat?

Hopefully my question makes some sort of sense. I've been researching building precise machines recently, and it's been very interesting, but creating flat surfaces that are perpendicular to each other via scraping is something I still don't understand.

Thank you for sharing your work. You are putting together a very nice shop there!
I started with checking the horizontal surfaces on the surface plate using a dti on a guide block, it is difficult to measure scraped ways directly. They checked out perpendicular, al the other ways showed very little wear. From there I checked the y-axis for flatnes and started taking the high spots down. There was no real high/low side on the ways so I just started Scraping. In the beginning I used an HSS scraper which doesn’t do much on the cast iron ways, in the end I used a carbide scraper but still with a large radius. Most important was to keep the y-axis paralel. I would not use this approach if the wear was on more surfaces as it would require getting Everything back to square. If you look up “this old Tony” on YT there is a series of videos where he works on a surface grinder bringing It back to square.
In the end you just need to start easy and learn as you go.
 
Joined
May 25, 2010
Messages
3,003
Location
The Netherlands, In the Market Garden area
 
 
As space is becoming scarce lately I need to get the tub on the frame First.
this requires brackets that are quite time consuming to fabricate.
first I got some 40 and 20mm square stock.
Cut 75mm pieces Of 40 stock and milled the top shape of the cross bars in it.
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Then cut the 20 stock to 80mm pieces and milled them to fit to the 40 stock.
The bottom got two slides for the bottom of the bar.
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Joined
May 25, 2010
Messages
3,003
Location
The Netherlands, In the Market Garden area
 
 
Time for an update.
working on the brackets was time consuming for a number of reasons.
One was that I have no experience with milling, that is a fast learning curve
An other is constantly measuring as there is no DRO on my mill.
This led to the next few side projects.
First a work light, at my age you cannot have to much light.
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Its nice to see what you are doing (wrong).
Then came the bigger vice, which didn’t come with the proper mounting brackets, next project.
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I still need to get some Allen bolts and sink them into the brackets.
Then was there the DRO.
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first three boxes with scales arrived.
 
Joined
May 25, 2010
Messages
3,003
Location
The Netherlands, In the Market Garden area
 
 
I have been working on freeing up my flat space.
organizing the stuff most needed in close range and the less needed in a drawer or behind a door.
A permanent place for the collets.
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Cleaning paper on the wall
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and some French cleats for the tool holders.
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This frees up some drawer space and work surface.
 
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