scraping in a lathe’s bed // Bettbrücke einschaben

by Lathe on Aug.29, 2009, under Lathe Videos

Showing (partially) how I scraped in my lathe’s gap bridge. Ich schab die Bettbrücke meiner Drehmaschine ein.

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:Drehmaschine, Flachschaben, hand, lathe, mechanics, Schaben, scraping

8 comments for this entry:

MuellerNick
August 29th, 2009 on 12:26 pm
Sorry for the later answer!
The resin used in this video is “MultiMetall steel”. It is a steel-filled resin. Not suitable for bearing surfaces, but perfect for fitting surfaces that have to be scraped.
There’s an other product from the “Moglice-company” (where that Multimetall is from) that is called “DWH”. Also perfect for fitting surfaces, but it can’t be scraped. At least you get a bad surface when scraping. DWH is perfect when you can align a part and then cast that resin.
juggernaughtb1
August 29th, 2009 on 12:26 pm
Indeed, someone needs to show how, so yes, please post as many vidoes as you can thanks again!

Is the resin “moglice” or turcite, or something else?

I tried to scrape parts on my Bridgeport vertical mill. I just did a little, for oil retention in the very worn parts. I think without coplaner faces (fresh from a planer or surface grinder) I will cause damage & misalignment. Sniff sniff, my machines are so worn out
MuellerNick
August 29th, 2009 on 12:26 pm
You push quite soft. Especially with the material in this video (it is some kind of resin) you just -more or less- rest your left arm on the scraper.
I prefer to push. Rarely use the pulling technique, but you have to hold the scraper completely different.
Will post a new video this month with the BIAX on my Myford MG12 cylindrical grinder (1961)

Scraping can be learned, but someone has to show it to you.

Thanks to all for their comments!
juggernaughtb1
August 29th, 2009 on 12:26 pm
Thank you for video! So many clowns talk about this machine repair, but do NOT show because they think it’s magic. To hell with them. Question: How hard do you press the tool into the work? Is it better to cut with a push, or can one pull a tool (with a different kind of scraper)? Thank you.
cartkecktooerandthos
August 29th, 2009 on 12:26 pm
sehr gut senden Sie mehr
danke
very useful I want to see more on hand scraping
thank you Geoff in UK
matthbva
August 29th, 2009 on 12:26 pm
Thanks for posting this. I’ve read about scraping, but actually seeing it done makes a huge difference.
russhayden
August 29th, 2009 on 12:26 pm
Great Video! Thanks.
airbrushe
August 29th, 2009 on 12:26 pm
Thank you for sharing your knowledge. airbrushe