Author Topic: Surface grinder restoration and scraping  (Read 2666 times)

Offline PekkaNF

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Re: Surface grinder restoration and scraping
« Reply #25 on: August 14, 2017, 11:16:58 PM »
Thank you.

Workmate? I had trouble with it, too low and does not feel right...although my parts have been much smaller. Maybe just wring combination to me.

I have been looking those paint scraper blades, but all seem way too small, like 5 mm wide and under 2 mm thich. Whitch size/brand/model you use for dovetails?

Pekka

Offline Andrew Wildman

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Re: Surface grinder restoration and scraping
« Reply #26 on: August 15, 2017, 02:53:43 AM »
Hi Phil, for the column dovetails I used a camelback straight edge. For the table dovetails I used the straight edge that I have shown in on other video that I posted on this forum. This straight edge has a clearance machined on the topside so it can get under the dovetail. The table and column served as the master for the knee and carriage and so a precise dovetail angle is not necessary.

Offline philf

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Re: Surface grinder restoration and scraping
« Reply #27 on: August 15, 2017, 06:56:40 AM »
Hi Phil, for the column dovetails I used a camelback straight edge. For the table dovetails I used the straight edge that I have shown in on other video that I posted on this forum. This straight edge has a clearance machined on the topside so it can get under the dovetail. The table and column served as the master for the knee and carriage and so a precise dovetail angle is not necessary.

Hi Andrew,

I've seen the straight edges - it was the actual scraping tool for the dovetails I was interested in.

Where did you manage to pick up your camelback straight edges from? I keep looking on eBay and never see them in the UK.

Phil.
Phil Fern
Location: Marple, Cheshire

Offline Andrew Wildman

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Re: Surface grinder restoration and scraping
« Reply #28 on: August 21, 2017, 03:53:28 PM »
Hi Phil,
I bought something like this for the dovetails:
http://www.ebay.co.uk/itm/10pcs-50mm-2-Carbide-Scraper-Blades-To-Suit-Linbide-Stanley-Hand-Held-Scrapers-/172250301095?var=&hash=item281aeb02a7:m:mtDCtXhjnq1BIMOdSlY-WCw

I found the straight edges on ebay.  Nobody seem to be looking for them at the time so I got the 30" for £15 and the 48" for £30  :drool:

Offline philf

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Re: Surface grinder restoration and scraping
« Reply #29 on: August 21, 2017, 05:34:04 PM »
Thanks Andrew.

The straight edges were a brilliant buy!  :bugeye:

Phil.
Phil Fern
Location: Marple, Cheshire

Offline Andrew Wildman

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Re: Surface grinder restoration and scraping
« Reply #30 on: September 10, 2017, 04:33:45 PM »
In this latest episode I scrape the carriage (the bit between the knee and the table).  This is the most tricky of the alignment job on the grinder as I had to align a dovetail way to a double vee way.  Requires some thinking and some interesting measuring tooling.

<a href="http://www.youtube.com/watch?v=0Z2Br7p2yng" target="_blank">http://www.youtube.com/watch?v=0Z2Br7p2yng</a>

Offline Biggles

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Re: Surface grinder restoration and scraping
« Reply #31 on: September 13, 2017, 11:52:25 PM »
I admire your stamina Andrew, thatís a lot of work youíre doing. Keep going and well done.  :nrocks:

Offline Andrew Wildman

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Re: Surface grinder restoration and scraping
« Reply #32 on: September 14, 2017, 02:49:52 AM »
Did you ever take something on and then realise it was a much bigger job than you had expected, but by that time your in too deep?  :doh:I was just going to tickle the ways into alignment but...... :Doh:

Offline Pete.

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Re: Surface grinder restoration and scraping
« Reply #33 on: September 14, 2017, 01:05:52 PM »
Did you ever take something on and then realise it was a much bigger job than you had expected, but by that time your in too deep?  :doh:I was just going to tickle the ways into alignment but...... :Doh:

Several times but you seem to be coming through your trial by fire admirably. I like your systematic approach and clear no-frills commentary. Quite refreshing to not have to sit through a load of rambling rhetoric.

Offline Andrew Wildman

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Re: Surface grinder restoration and scraping
« Reply #34 on: October 08, 2017, 05:03:35 PM »
Thanks Pete,
Here is the final scraping video and the penultimate in the rebuild series:
https://www.youtube.com/watch?v=U2p41rxu5xU
<a href="http://www.youtube.com/watch?v=U2p41rxu5xU" target="_blank">http://www.youtube.com/watch?v=U2p41rxu5xU</a>

Offline philf

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Re: Surface grinder restoration and scraping
« Reply #35 on: October 09, 2017, 03:51:27 AM »
Excellent job Andrew,

 :thumbup:

I don't think I have enough patience (or time) to be able to do mine to the same standard.

Phil.
Phil Fern
Location: Marple, Cheshire

Offline Biggles

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Re: Surface grinder restoration and scraping
« Reply #36 on: October 13, 2017, 12:47:37 AM »
I just watch in awe and admiration at your work Andrew.  :bow:

Offline PekkaNF

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Re: Surface grinder restoration and scraping
« Reply #37 on: October 13, 2017, 03:46:58 PM »
Very good. Enjoyed following progress and explanation.

Thank you

Offline tom osselton

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Re: Surface grinder restoration and scraping
« Reply #38 on: October 13, 2017, 06:50:48 PM »
Nicely done!

Offline Andrew Wildman

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Re: Surface grinder restoration and scraping
« Reply #39 on: October 20, 2017, 05:03:05 PM »
Final instalment of the grinder restoration series is now available:

https://www.youtube.com/watch?v=bQGV-XBURmA