Well I've gathered stuff to practice scraping.

expressline99

Registered
Registered
Joined
Nov 29, 2015
Messages
439
Well today I went around town and gathered some simple supplies to scrape... Prussian blue (at Napa), a decent file & handle from Home Depot to convert to a scraper, a rubber roller from a craft store.

I've got a small surface plate that I'm sure is out of cert if it ever was in. But it's free and was given to me from a job site where it was being a door stop for who knows how long... at least the working surface was face up!

The item to be worked on is an milling table for a drill press. It's missing the vise so the top is just an open dovetail. But that part is mounted on another dovetail that is complete with a gib. It's small and looks like it was just rough milled into the condition its in now. It's cast iron. End value of it being just an item to practice on.

I've been reading tons...watching all the videos. Reading the machine restoration book as recommended.

Should be fun....Doing this while I wait for parts on the Bridgeport full head rebuild.

Paul
 
Paul, come on down and we will get a scraping session going, and get a couple others to come join in as well, perhaps talk Ulma Doctor into being the resident guru to keep us on the straight and narrow... Working with others helps one to see the different techniques that will work and gives a chance to talk about what we are doing and why it works for us. Also gives you a chance to try out different tools and techniques. None of us are by any means pros, just aficionados...
 
Bob, I really need to make it over there. Gotta work on wife for next month. I need something for her and the two kids to do over there while I'm visiting.
 
Before doing any scraping, get one of the guys check your "free" surface plate against theirs. If you don't, you could be chasing your tail on tyring to get something flat or even determining if something is flat. Both these guys would be a great mentor for you! Ken
 
Paul, we could rub your surface plate against one of ours, which have recently been professionally calibrated by Precision Granite to AA and certified to A grade. If they match, great. If not, "Man with one watch knows what time it is..." None of us have an autocollimator, or a repeat-o-meter, or anything similar to actually calibrate them.

edit: Sacramento Zoo is a fun place to go, also the great railroad museum in Old Sac.
 
Paul, we could rub your surface plate against one of ours, which have recently been professionally calibrated by Precision Granite to AA and certified to A grade. If they match, great. If not, "Man with one watch knows what time it is..." None of us have an autocollimator, or a repeat-o-meter, or anything similar to actually calibrate them.

edit: Sacramento Zoo is a fun place to go, also the great railroad museum in Old Sac.

Honestly I might be embarrassed to allow anyone to see this granite block. I have no idea where it's been other than it was found being a door stop at a house where I guy used to make knives. He was no longer around to explain... There are no identifying marks on it..it's a black granite? If it got close to other nicer plates it might upset them. :)
 
Back
Top