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joe white(old)
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PostPosted: Wed Jul 11, 2007 7:33 am 
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I need a little help with a jointer I found at a local industrial auction. It is an import (Taiwan) but very clean. I don't think it is very old. It is medium olive green and the id tag reads; Northwood (in red letters) It is labeled model CT-150D and it is a six inch. Its a one horse and has the cabinet style base. I have already tried it out on some cedar 1x6 I had laying around and it cut great. I'm sure it will be more than adequate to get tops and backs ready to join and I want to get new knives/blades for it but I can't find any info on it so far. I can post a pic if needed. Anyone have any info for me?
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Steve Saville
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PostPosted: Wed Jul 11, 2007 7:49 am 
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Joe,
Do not use that on your tops and backs! It will destroy them.

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JohnAbercrombie
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PostPosted: Wed Jul 11, 2007 7:51 am 
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[QUOTE=SteveS] Joe,
Do not use that on your tops and backs! It will destroy them.[/QUOTE]

Jointing the edge of top/back plates on a power jointer works just fine.
Now, if the OP had suggested putting backs through a thickness planer....

John


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JohnAbercrombie
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PostPosted: Wed Jul 11, 2007 7:54 am 
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Joe-
There are a lot of machines out there with different nameplates, but most of them are knockoffs of Delta/Rockwell machines, made in Taiwan.
Unless the blades are quite unusual, you can probably find replacements by just using the dimensions of your existing blades.
If you use a sharpening service, a question to them might get you results quickly.

Cheers
John


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JohnAbercrombie
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PostPosted: Wed Jul 11, 2007 7:59 am 
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Try-

http://www.westernapex.com/pdf-files/Bladesnbits-Com-Planer- Jointer-Blades.pdf
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WaddyThomson
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PostPosted: Wed Jul 11, 2007 8:00 am 
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Joe, I did a Google search on Northwood Jointer, and got a link to what was, apparently, one of Northwood Tools' more popular items, a 6" jointer.  They are an Australian Tool Company, and still have a website, but I couldn't find a jointer on the site.  Probably something they had in the past, that they had their name put on.  I noticed, that another site was selling blades that would fit Grizzly and Northwood jointers.  Apparently they also have a Store in the US now too.  Maybe they would have some answers for you.


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joe white(old)
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PostPosted: Wed Jul 11, 2007 9:40 am 
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Thanks guys! I messed around with it a little more and found that the old owners had the fence set up in such a way that the first one inch of the 6 inch blades weren't ever used. I set it up to make use of that and got a very clean and precise cut. I also removed one of the blades and measured so I can find replacements. Wouldn't sharpening these be pretty tricky? seems that they would have to be pretty accurate from one blade to the next. I do have a lot of Amish craftsmen and sharpening services in my area, maybe I could give that a try?


Steve, you really mean not to use a jointer to create a clean and straight edge to join the two sides of a back or top? I thought this was an acceptable ( and controversial?) method?
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JohnAbercrombie
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Joe-
You should be able to get several sharpenings out of a set of jointer blades- replacing them isn't necessary very often.
I just keep a second (sharp) set on hand and swap them out when needed.
Some jointers let you shift the blades sideways a bit; this can be handy if you get a 'nick' in the blades- shift one and you can get a reasonably smooth cut until you swap out the set.
There are also techniques/jigs for honing blades yourself, but I usually just get them sharpened professionally.

If you ask some of the local craftsmen, they should steer you to a good sharpening service.
Some of the 'sharpening' services can't be trusted with anything but lawnmower blades.
I found a bunch of CT-150 jointers on the web-perhaps like yours- they look like nice machines. I think the CT refers to the company in China that makes them.

Cheers
John


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Steve Saville
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PostPosted: Wed Jul 11, 2007 10:57 am 
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[QUOTE=joe white]

Steve, you really mean not to use a jointer to create a clean and straight edge to join the two sides of a back or top? I thought this was an acceptable ( and controversial?) method?

[/QUOTE]

Evidently some are successful at doing that. That's great and perhaps you will be good at it.
I use a shooting board and block plane.
I have a nice 6" jointer and I wouldn't use it for that.
I'm not saying I'm right and they are wrong.
There are many ways to do it. Some use a straight block with sandpaper and are very successful. I think I saw one gut using a table saw.

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crazymanmichael
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PostPosted: Wed Jul 11, 2007 2:27 pm 
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if i was to choose between using a block plane or my jointer to join plates i would take the jointer any day. whilst i did try it once with a block plane it found it too short. the shortest plane i've been pleased with for the purpose was a no 4 smooth with the iron honed square, but my favourite is a no 5 jack. some prefer to use 6's and 7's. even read about a chap who used a no 8.


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