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Thread: WIP Roubo bench
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19th November 2008, 07:27 PM #16
Today's progress
Made good progress today. The stretchers are all fitted, legs cut to the right length and a start made on the dovetailed mortises in the assembly bench which will receive the bench stretchers. I guess tomorrow will put me close to a glue up and then it'll be time to fit the hardware. I can hardly wait
Cheers
Michael
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19th November 2008 07:27 PM # ADSGoogle Adsense Advertisement
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19th November 2008, 09:10 PM #17
Looking good
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19th November 2008, 10:47 PM #18
Nice work!
.
I know you believe you understand what you think I wrote, but I'm not sure you realize that what you just read is not what I meant.
Regards, Woodwould.
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20th November 2008, 06:47 PM #19
Ta,
Just a couple of photos. Only managed to get the two benches married up today and fortunately it was a happy marriage. Just need to plane off a bit of grace in the worktop I gave myself and it should all be hunky dory. These two photos are just closeups of what the assembled keyed dovetailed joints look like. Fine tuning will bring the tenon foot level with the leg and I'll be taking a bit off the overhanging shoulders to prettify it a bit.
Cheers
Michael
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27th November 2008, 10:55 PM #20Skwair2rownd
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Great looking set-up Mic.
When I get back to Brissie I`ll have to come and have an optic.
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28th November 2008, 06:36 PM #21
Ta Artme, you're more than welcome to pop over when you get back.
Whacked it together today. Firstly I had to tidy up the shoulders of the stretchers so they merged with the assembly bench. Did this on the table saw with a fence held down with a couple of magswitches. Just increased the height of the blade by a couple of mm between passes. Then drawbored the whole shamozle.
To do - make a vice face, deadman and runner, drill dogholes and put on a finish.
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12th December 2008, 05:43 PM #22
Nothing's happened for the last couple of weeks because work's got in the way, but today I picked up a bit of recycled timber for the vise and deadman and started thinking about the design of the leg vise. Lucky I did a bit of research because this clever bugger has elegantly solved the big shortfall of a leg vise namely the mechanism to keep the vise face parallel. I think this is what I'll do on mine.
http://oudluthier.blogspot.com/2008/...akthrough.html
Hopefully might get a bit done on it tomorrow.
Cheers
Michael
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12th December 2008, 10:30 PM #23Skwair2rownd
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G'day Mic. That is agreat blogspot.!! Thanx.
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12th December 2008, 11:01 PM #24
The external rollers are completely OTT and bring to mind a level of self abuse. Like a huge 'L' shaped drawer runner, it's an excellent solution, but why not simply mortice the rollers into the very substantial leg?
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I know you believe you understand what you think I wrote, but I'm not sure you realize that what you just read is not what I meant.
Regards, Woodwould.
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12th December 2008, 11:23 PM #25
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13th December 2008, 09:28 AM #26
If the roller axles were ecentric and had a slot in their ends, you could adjust the rollers in the leg with the twist of a screwdriver.
.
I know you believe you understand what you think I wrote, but I'm not sure you realize that what you just read is not what I meant.
Regards, Woodwould.
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13th December 2008, 03:05 PM #27
Um, what would the roller axles be eccentric to? The outside of the roller? That won't work. But if the axles were mounted in a slotted eccentric mount, that might work, if you could have a way of maintaining the pressure once the eccentric mount was twisted with the screwdriver. Food for thought, thanks WW.
Cheers
Michael
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13th December 2008, 03:33 PM #28
A crankshaft and a drill brace are effectively ecentric shafts (or shafts with eccentric journals). Ecentric mounts (one on either end of the shaft) would require simultaneous and precise rotation which could be a PITA to implement.
With an ecentric shaft, the inserted end would need to be smaller than the journal and roller bore, and the outer end would have to be a larger diameter again. You would obviously require two sizes of Forstner bits to install the shafts.
You could insert locking screws (into threaded inserts) in the front and rear faces of the leg to lock against the large diameter (outer) ends to prevent them from rotating.
If you annealed a couple of large SHCS, you could turn them into suitable eccentric shafts. They wouldn't need re-hardening and you would adjust the rollers with a hex key which would afford more leverage than a screwdriver and would avoid a chewed up slot. FFT?.
I know you believe you understand what you think I wrote, but I'm not sure you realize that what you just read is not what I meant.
Regards, Woodwould.
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13th December 2008, 04:42 PM #29
I know you believe you understand what you think I wrote, but I'm not sure you realize that what you just read is not what I meant.
Yep, that might be it.
Ah no, I get what you are saying now, the brace image did it. I thought for a minute I would have to accuse you of overestimating my aptitude But you have overestimated my aptitude for smithing up a couple of offset shafts using SHCS and for acronyns. What the hell is a SHCS and an FFT?
Cheers
Michael
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13th December 2008, 06:24 PM #30.
I know you believe you understand what you think I wrote, but I'm not sure you realize that what you just read is not what I meant.
Regards, Woodwould.
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