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Thread: dumb, stupid or great idea
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30th June 2022, 10:51 AM #1
dumb, stupid or great idea
for those with table saws and thinking about zero inserts, but daunted by either buying or making them.
I had the same problem and last night a brain wave/fart idea.
Use a strip of heavy black sticky tape, I used some similar to electrical but 3x wider.
Lowered the blade, stick this tape down, press it hard so it really sticks, cut around the front edge of insert, turn saw on, then slightly raise blade, until you see riving knife start to press. turn off saw cut either side of riving knife then start saw again and raise further.
You will need to do this several times as riving knife pushes through.
What happens when I need to change angle of blade? well I guess we start again, but it works great as an interim until I get my various zero inserts made from perspex.I would love to grow my own food, but I can not find bacon seeds
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30th June 2022, 11:12 AM #2SENIOR MEMBER
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I quite often just run a strip of painters masking tape either side of the blade.
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30th June 2022, 01:04 PM #3
Am I missing something here? What purpose does the tape serve?
My impression is that a zero clearance insert (throat plate) is used to support and to prevent thin rips being drawn down into the saw slot.
I understand that the zero clearance insert will reduce chip out on the underside of a cut but using tape offers very little support at the beginning and end of the board. The tape may also become a serious hazard in itself if it becomes detached or if/when debris attaches to the exposed adhesive on the underside.Last edited by Mobyturns; 30th June 2022 at 01:05 PM. Reason: added "throat plate"
Mobyturns
In An Instant Your Life CanChange Forever
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30th June 2022, 02:13 PM #4
let me clarify..
I was cutting 'slicing' 2mm pieces and having them fall through the gap between existing plate and blade.
This is a quick fix, I will admit but its solved a problem.I would love to grow my own food, but I can not find bacon seeds
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30th June 2022, 05:14 PM #5
I don't know if it's a dumb idea or not, but there are already retailers making a buck out of it.
https://www.timbecon.com.au/fastcap-zero-clearance-tapeFranklin
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1st July 2022, 01:03 AM #6
edit: wrong thread
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1st July 2022, 04:21 PM #7Originally Posted by Tonyz
If it works .....
I did something similar, and stuck a piece of 3mm MDF to the sawbench using double sided tape. It worked very well for a while, and then the MDF warped.
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1st July 2022, 06:27 PM #8
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1st July 2022, 07:13 PM #9
I've got a Leda small slider similar (but different) to the TS250. The original insert to the side of the blade has quite a large gap to accommodate blade tilt that left plenty of room for slim offcuts to fall through and jam in the blade shroud. It was pretty easy to make a replacement zero clearance insert from a length of 30mm x 3mm aluminum strap.
IMG_20220701_180313.jpgFranklin
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1st July 2022, 08:55 PM #10
wouldnt it be nice doing a survey of peoples ideas and suggestions then building a table saw to suit.
Hopefully in the next couple of weeks I can cut up some perspex to suit zero
1 shallow cuts
1 deep cuts
1 45*
etc etcI would love to grow my own food, but I can not find bacon seeds
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4th July 2022, 10:31 AM #11
Tony, I've used perspex for router-bases & with all those wood chips & sawdust whizzing over it, it gets a pretty good electrostatic charge up on a dry day, which causes chips & sawdust to cling to it. That probably doesn't matter so much for a TS insert, you are not trying to see through it to the workpiece, but perspex also gets a bit brittle over time. Polycarbonate is said to be stronger & less brittle, but it's not so readily available.
I've used a number of materials for inserts over the years. The one that came with my current saw had a ridiculously large gap & let BIG pieces through, which sometimes provided me with more excitement than I need. In fact it was downright dangerous if used with a thin-kerf blade. Aluminium is perhaps the most durable of the easier materials we can obtain, but I've used ply (either straight, or with some HMW polythene glued to the surface). Both worked fine, but eventually, sawdust & chips take their toll, especially around the front of the slot and the inserts need replacing every few years. The last couple I made from a plastic cutting-board that was nearly the right depth and proved easy to hand-plane to the required thickness (the shavings picked up charge & clung to everything & it took me longer to clean up than make the insert!
The insert is retained by a couple of screws, so once the blank is fitted & flush, I remove the riving knife & raise the blade through it, then take the insert out & extend the cut to accommodate the riving knife. You need a separate insert for angled cuts, of course, once you cut the slot for maximum tilt, it's no longer 'zero clearance'.....
Cheers,IW
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4th July 2022, 10:58 AM #12
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4th July 2022, 11:06 AM #13
Found It
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4th July 2022, 06:54 PM #14
Exactly. If it simply works to do what you need, it's a great idea. If it takes a lot of time, trials and effort to force it to work as you want, it's moving into the demesne of dumb ideas.
If you tell someone about it and they hurt themselves, it was a stupid idea... to tell that person.
- Andy Mc
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4th July 2022, 08:19 PM #15
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