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Thread: Hafco sb 12 table saw & dado set
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19th June 2018, 11:50 AM #1Member
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Hafco sb 12 table saw & dado set
Hi all
I have a sb12 saw, baught 2nd hand, I was under the impression that it was able to take a dado set, it comes with a dado insert listed as part no 13a in the parts list and shown with the saw on H&F site.
Inquiries to H&F have said (1) not suitable and (2) yes suitable but no recomendation.
The Arbor shaft seems long enough to take a stack although the unthreaded section (that support the blades) is not and that could be a problem.
Has anyone any 1st hand knowledge about using dados on this model saw.
Thanks Rick
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19th June 2018 11:50 AM # ADSGoogle Adsense Advertisement
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19th June 2018, 04:51 PM #2
Hi Rick,
I am not familiar with that saw so had a look for some reviews. Looking at the arbor (about the 6m30 sec mark)I would say it can take one. Being 5/8'' is the common dado bore too. On my Delta saw the threaded part is also under a fair bit of the dado stack. Does not seem to harm the thread.
That said I do not use the dado a lot as setting it up is a fiddle. I have to plan so that all dado work is done in one go as changing back and forth will drive you nuts. I guess to get the best from a dado blade you need a spare saw to keep it on.
Regards
John
https://www.youtube.com/watch?v=CuOTCANGhp8
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20th June 2018, 09:50 AM #3Member
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Thanks John
I did a bit of research before I baught the saw and looked at the clip you mentioned, what I am concerned about with the thread is where it stops and the smooth section starts there is a large groove (?) machined into the shaft and I am concerned that a blade might centre over this groove and move out of alignment and run of centre. It's not shown on that clip and I wasn't aware of it till after I got the saw home and had a good look at it. That H&F gave me conflicting info didn't help either. I was hoping to get some info from someone with experience with the saw.
Thanks for your input, I am probably thinking to much about it but being 1&1/2 fingers short on 1 hand, safety is a bit of a concern for me.
Cheers
Rick
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21st June 2018, 06:09 PM #4
Rick,
You are right to be thinking about safety. If you don't feel comfortable with something then leave it alone. As you say some first hand info from someone with that saw would be the help you are looking for. Someone out there surely has one.
Regards
John
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1st October 2018, 12:37 PM #5Intermediate Member
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I am looking at buying one of these saws, Do you like the table saw?
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2nd October 2018, 09:19 AM #6Member
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Ben
I have not used the saw a lot, I baught it 2nd hand in generally good condition. I had some problems with the rise and fall and locking of the blade height. This seems to be problem with some of these saws, (see previous posts) I have fixed this on my saw.
The sealing of the cabinet for dust collection requires a bit of work, if you are buying new I would advise sealing the bottom plate to cabinet sides during assembly, I sealed mine with foam draft tape and extra bolts & washers. The gap between the cabinet and top I sealed with foam concrete expansion strip and double sided tape, I am going to try magnetic sign material on the back panel around the motor and the angle gauge on the front.
Remember you will require a 15 amp circuit for this saw, and the supplied mitre gauge and blade guard are pretty ordinary.
This seems like a lot of work especially on a new saw, but it is a basic saw designed to be used on work sites where dust collection is not a high priority.
I think the saw will be OK and do most jobs as well as more expensive machines.
Regards Rick
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2nd October 2018, 09:24 AM #7Intermediate Member
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Thanks rick
Seems like a fair bit of work to seal up but all part of the process. Second hand table saws are few and far between so you were lucky to get one. I can’t find one around $1000 anywhere around Melbourne which is annoying, it makes the new saw an only option, and with new comes the price point.
Thanks for the heads up on sealing in the cabinet though [emoji106]
Sent from my iPhone using Tapatalk
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3rd October 2018, 06:09 PM #8New Member
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Hi Rick,
I own this saw and also use the CMT dado set.
When I first used the dado set it did leave an uneven bottom in the dado. Further investigation revealed that one of the chippers had moved in that groove in the arbor between the threaded section and the smooth part. I overcame this by applying JB Weld into the groove. When it dried I turned the saw on and then with a small file tried to even the "weld" out. It wasn't perfect but it is better than having an uneven groove.
Vic from DownUnderWoordWorks also has a Youtube video entitled Table Saw Dust Extraction Improvements in which he managed to build an enclosure at the back of the saw for dust containment.
Cheers and good luck
Rob
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3rd October 2018, 06:48 PM #9GOLD MEMBER
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Be careful about starving your dust extraction and motor of air. The Down Under Woodworks guy has gone totally overboard with plugging up holes. Remember that your dust extractor is a low pressure system and the air to achieve the best the best extraction result has to come from somewhere. I'd be seriously concerned about overheating the motor with all that hole plugging installed. It might sound like a good idea but a search of the more knowledgeable dust extraction threads on here will quickly tell you how dumb what he has done is.
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4th October 2018, 08:36 PM #10GOLD MEMBER
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4th October 2018, 10:33 PM #11SENIOR MEMBER
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Wow.
You know, I often find myself dithering about how best to do something and spend so much time trying to perfect the design, that I never actually get around to doing the project. I have a lot of admiration for those guys who just climb in and do things, because even if it’s not perfect, it’s at least something. But that video is an example of when that gung-ho attitude backfires, and you end up doing something that makes sense, if you don’t think too deeply about what you’re doing, but is actually just plain wrong.
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