Jet Parallel Clamps... NOT Parallel?
Am I wrong or are parallel clamps supposed to be parallel?
On my Jets, the end clamp section tilts in a bit and the adjustable end tilts in a bit (1/32-1/16"), after tightening. Is there an adjustment procedure with these or are parallel clamps just supposed to be "close to parallel?" -- -MIKE- "Playing is not something I do at night, it's my function in life" --Elvin Jones (1927-2004) -- http://mikedrums.com ---remove "DOT" ^^^^ to reply |
Jet Parallel Clamps... NOT Parallel?
On 3/24/2010 4:38 PM, -MIKE- wrote:
Am I wrong or are parallel clamps supposed to be parallel? On my Jets, the end clamp section tilts in a bit and the adjustable end tilts in a bit (1/32-1/16"), after tightening. Is there an adjustment procedure with these or are parallel clamps just supposed to be "close to parallel?" Considering that a clamp of that type is not machined, nor has the production engineering methodology for precise tolerances, "close" probably counts. My Bessey's are close enough not to worry about, and the results have so far been perfect enough. :) Now, when Festool starts making parallel jaw clamps .... -- www.e-woodshop.net Last update: 10/22/08 KarlC@ (the obvious) |
Jet Parallel Clamps... NOT Parallel?
On 03/24/2010 03:38 PM, -MIKE- wrote:
Am I wrong or are parallel clamps supposed to be parallel? On my Jets, the end clamp section tilts in a bit and the adjustable end tilts in a bit (1/32-1/16"), after tightening. Is there an adjustment procedure with these or are parallel clamps just supposed to be "close to parallel?" Ideally they should be parallel. There is no adjustment. Taunten recently did a review of parallel jaw clamps. Some of them were noticeably better than others at keeping parallel under load. Chris |
Jet Parallel Clamps... NOT Parallel?
Is this with a load or without?
I could suspect that under load they might square up. I could also suspect that under load they could deflect. So I am covered either way and should come out looking pretty smart. On Mar 24, 2:38*pm, -MIKE- wrote: Am I wrong or are parallel clamps supposed to be parallel? On my Jets, the end clamp section tilts in a bit and the adjustable end tilts in a bit (1/32-1/16"), after tightening. Is there an adjustment procedure with these or are parallel clamps just supposed to be "close to parallel?" -- * -MIKE- * "Playing is not something I do at night, it's my function in life" * * *--Elvin Jones *(1927-2004) * -- *http://mikedrums.com * * ---remove "DOT" ^^^^ to reply |
Jet Parallel Clamps... NOT Parallel?
On 3/24/10 5:11 PM, SonomaProducts.com wrote:
Is this with a load or without? Both. I could suspect that under load they might square up. I thought so, too, but they didn't. I could also suspect that under load they could deflect. So I am covered either way and should come out looking pretty smart. Funny. -- -MIKE- "Playing is not something I do at night, it's my function in life" --Elvin Jones (1927-2004) -- http://mikedrums.com ---remove "DOT" ^^^^ to reply |
Jet Parallel Clamps... NOT Parallel?
On Wed, 24 Mar 2010 16:49:21 -0500, Swingman wrote:
My Bessey's are close enough not to worry about, and the results have so far been perfect enough. :) Think I remember reading that the jaw faces aren't completely parallel until they're clamped down at which point they do align forming a perfectly square clamping surface. |
Jet Parallel Clamps... NOT Parallel?
"-MIKE-" wrote in message ... Am I wrong or are parallel clamps supposed to be parallel? On my Jets, the end clamp section tilts in a bit and the adjustable end tilts in a bit (1/32-1/16"), after tightening. Is there an adjustment procedure with these or are parallel clamps just supposed to be "close to parallel?" -- -MIKE- "Playing is not something I do at night, it's my function in life" --Elvin Jones (1927-2004) -- http://mikedrums.com ---remove "DOT" ^^^^ to reply I have Jet, Bessey, and Cabinet Master parallel clamps. None of them are parallel at some stage of tightening and or depending on the opening on the clamps. Simply put, the bar will bend and that prevents the consistant possibility of a perfectly parallel set of jaw faces. BUT these type clamps tend to work about as good as you could expect. |
Jet Parallel Clamps... NOT Parallel?
"Upscale" wrote in message ... On Wed, 24 Mar 2010 16:49:21 -0500, Swingman wrote: My Bessey's are close enough not to worry about, and the results have so far been perfect enough. :) Think I remember reading that the jaw faces aren't completely parallel until they're clamped down at which point they do align forming a perfectly square clamping surface. That is correct however that point is at a specific pressure at any given opening distance. Change the opening distance or pressure and you are over or under. |
Jet Parallel Clamps... NOT Parallel?
On Mar 25, 7:20*am, "Leon" wrote:
I have Jet, Bessey, and Cabinet Master parallel clamps. *None of them are parallel at some stage of tightening and or depending on the opening on the clamps. *Simply put, the bar will bend and that prevents the consistant possibility of a perfectly parallel set of jaw faces. * Mine aren't perfect, but they are close enough. I have a million clamps, and to fight off the fact that they all twist a bit (Besseys.... not much, though) I use a lot of clamps and a little pressure. BUT these type clamps tend to work about as good as you could expect. I think so. Most of the time when you see twisting or wracking it can be minimized by reorienting the victims in the clamps. However, when teaching others the art of the glue up, almost without fail the most likely culprit in their glue up failure is placing the clamps and material on an uneven surface to glue up. And uneven table top, gluing on saw horses, etc., bring a whole different dimension non parallel clamps. When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. Robert |
Jet Parallel Clamps... NOT Parallel?
wrote
Most of the time when you see twisting or wracking it can be minimized by reorienting the victims in the clamps. However, when teaching others the art of the glue up, almost without fail the most likely culprit in their glue up failure is placing the clamps and material on an uneven surface to glue up. And uneven table top, gluing on saw horses, etc., bring a whole different dimension non parallel clamps. When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. Robert Bingo. It took me awhile to learn that but once I did it solved a lot of frustration. I built an assembly table with legs that could be adjusted to level. Max |
Jet Parallel Clamps... NOT Parallel?
On Mar 25, 9:00*am, "
wrote: On Mar 25, 7:20*am, "Leon" wrote: I have Jet, Bessey, and Cabinet Master parallel clamps. *None of them are parallel at some stage of tightening and or depending on the opening on the clamps. *Simply put, the bar will bend and that prevents the consistant possibility of a perfectly parallel set of jaw faces. * Mine aren't perfect, but they are close enough. *I have a million clamps, and to fight off the fact that they all twist a bit (Besseys.... not much, though) I use a lot of clamps and a little pressure. BUT these type clamps tend to work about as good as you could expect. I think so. *Most of the time when you see twisting or wracking it can be minimized by reorienting the victims in the clamps. However, when teaching others the art of the glue up, almost without fail the most likely culprit in their glue up failure is placing the clamps and material on an uneven surface to glue up. *And uneven table top, gluing on saw horses, etc., bring a whole different dimension non parallel clamps. When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. Level or planar? How level is level? I see vertical glue-up jigs. How do they work? |
Jet Parallel Clamps... NOT Parallel?
wrote in message ... On Mar 25, 7:20 am, "Leon" wrote: Snip When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. 99% of my clamping takes place in the shop, the TS top typically is the flattest surface and therefore is my glue up table. :) |
Jet Parallel Clamps... NOT Parallel?
wrote in message ... On Mar 25, 9:00 am, " When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. Level or planar? How level is level? I see vertical glue-up jigs. How do they work? When clamping up water boards the surface absolutely myst be "Level". |
Jet Parallel Clamps... NOT Parallel?
On Mar 25, 11:16*am, "Leon" wrote:
wrote in message ... On Mar 25, 9:00 am, " When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. Level or planar? *How level is level? *I see vertical glue-up jigs. How do they work? When clamping up water boards the surface absolutely myst be "Level". ???????????? What is a "water board"? |
Jet Parallel Clamps... NOT Parallel?
On Mar 25, 9:55*am, " wrote:
On Mar 25, 11:16*am, "Leon" wrote: wrote in message .... On Mar 25, 9:00 am, " When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. Level or planar? *How level is level? *I see vertical glue-up jigs. How do they work? When clamping up water boards the surface absolutely myst be "Level". * * * * * * * * * *???????????? What is a "water board"? Similar to a henway |
Jet Parallel Clamps... NOT Parallel?
wrote in message ... On Mar 25, 11:16 am, "Leon" wrote: wrote in message ... On Mar 25, 9:00 am, " When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. Level or planar? How level is level? I see vertical glue-up jigs. How do they work? When clamping up water boards the surface absolutely myst be "Level". ???????????? What is a "water board"? Don't you watch the news? |
Jet Parallel Clamps... NOT Parallel?
On Thu, 25 Mar 2010 16:25:15 -0500, "Leon" wrote:
wrote in message ... On Mar 25, 11:16 am, "Leon" wrote: wrote in message ... On Mar 25, 9:00 am, " When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. Level or planar? How level is level? I see vertical glue-up jigs. How do they work? When clamping up water boards the surface absolutely myst be "Level". ???????????? What is a "water board"? Don't you watch the news? Silly me. I thought we were talking about woodworking, for once. |
Jet Parallel Clamps... NOT Parallel?
On Mar 24, 3:38*pm, -MIKE- wrote:
Am I wrong or are parallel clamps supposed to be parallel? On my Jets, the end clamp section tilts in a bit and the adjustable end tilts in a bit (1/32-1/16"), after tightening. Is there an adjustment procedure with these or are parallel clamps just supposed to be "close to parallel?" On topic, but ... next to irrelevant: My set of four Jets arrived today -- 2 @ 24", 2 @ 40" The latest special "Tools & Shops" issue of FWW put them at #1 -- above Bessey, Jorgensen, and all other comers. Here's hoping! |
Jet Parallel Clamps... NOT Parallel?
On Thu, 25 Mar 2010 17:49:18 -0500, the infamous
" scrawled the following: On Thu, 25 Mar 2010 16:25:15 -0500, "Leon" wrote: wrote in message ... On Mar 25, 11:16 am, "Leon" wrote: wrote in message ... On Mar 25, 9:00 am, " When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. Level or planar? How level is level? I see vertical glue-up jigs. How do they work? When clamping up water boards the surface absolutely myst be "Level". ???????????? What is a "water board"? Don't you watch the news? Silly me. I thought we were talking about woodworking, for once. It's sheer torture, isn't it? giggle -- Challenges are gifts that force us to search for a new center of gravity. Don't fight them. Just find a different way to stand. -- Oprah Winfrey |
Jet Parallel Clamps... NOT Parallel?
On Mar 25, 9:46 pm, Larry Jaques wrote:
It's sheer torture, isn't it? giggle -- Challenges are gifts that force us to search for a new center of gravity. Don't fight them. Just find a different way to stand. -- Oprah Winfrey WHAT'S THIS? LJ quoting OPRAH's life lessons??? OUCH! Robert |
Jet Parallel Clamps... NOT Parallel?
"Max" writes:
wrote Most of the time when you see twisting or wracking it can be minimized by reorienting the victims in the clamps. However, when teaching others the art of the glue up, almost without fail the most likely culprit in their glue up failure is placing the clamps and material on an uneven surface to glue up. And uneven table top, gluing on saw horses, etc., bring a whole different dimension non parallel clamps. When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. Robert Bingo. It took me awhile to learn that but once I did it solved a lot of frustration. I built an assembly table with legs that could be adjusted to level. Max Is that really necessary? I just have been using a 1/2 sheet of 3/4" plywood that is pretty darn flat so that all ends of each parallel clamp rest on the same flat surface. Then in turn the bases of each clamp are paralle to this surface as is the piece being clamped. Within reason, it doesn't matter whether this plywood top is level with the ground or not as long as all clamps fully rest on its surface... Am I missing something? |
Jet Parallel Clamps... NOT Parallel?
On 3/26/2010 1:14 AM, blueman wrote:
Is that really necessary? Within reason, it doesn't matter whether this plywood top is level with the ground or not as long as all clamps fully rest on its surface... Am I missing something? Yep ... the quotations around the word "level" in Robert's post. The phrase "on the same level" comes immediately to mind ... -- www.e-woodshop.net Last update: 10/22/08 KarlC@ (the obvious) |
Jet Parallel Clamps... NOT Parallel?
"blueman" wrote in message
... "Max" writes: wrote Most of the time when you see twisting or wracking it can be minimized by reorienting the victims in the clamps. However, when teaching others the art of the glue up, almost without fail the most likely culprit in their glue up failure is placing the clamps and material on an uneven surface to glue up. And uneven table top, gluing on saw horses, etc., bring a whole different dimension non parallel clamps. When I glue something up in the field that requires this kind of clamping, I actually level my "table" on the sawhorses by carefully leveling the material I am using for a top. This cuts out most of the problems. Robert Bingo. It took me awhile to learn that but once I did it solved a lot of frustration. I built an assembly table with legs that could be adjusted to level. Max Is that really necessary? I just have been using a 1/2 sheet of 3/4" plywood that is pretty darn flat so that all ends of each parallel clamp rest on the same flat surface. Then in turn the bases of each clamp are paralle to this surface as is the piece being clamped. Within reason, it doesn't matter whether this plywood top is level with the ground or not as long as all clamps fully rest on its surface... Am I missing something? The concrete floor in my shop is not.........uh........shall we say, "perfect". I have a 3' X 5' assembly table. It consists of an angle iron frame onto which I fastened a piece of MDO. While I don't "level" the table with respect to the earth, I do adjust the legs to take care of a corner that may be a bit low. I just want the table to be *flat*. Maybe I should explain that almost everything in my shop is moveable. (casters, etc) I can arrange tools to accommodate different activities, woodworking, metalworking, appliance repair, auto repair..........whatever the need. So the table may be in a different location depending on the task at hand. Max |
Jet Parallel Clamps... NOT Parallel?
On Thu, 25 Mar 2010 22:17:59 -0700 (PDT), the infamous
" scrawled the following: On Mar 25, 9:46 pm, Larry Jaques wrote: It's sheer torture, isn't it? giggle -- Challenges are gifts that force us to search for a new center of gravity. Don't fight them. Just find a different way to stand. -- Oprah Winfrey WHAT'S THIS? LJ quoting OPRAH's life lessons??? OUCH! It couldn't be. I'm a racist. Lew said so. g -- "Not always right, but never uncertain." --Heinlein -=-=- |
Jet Parallel Clamps... NOT Parallel?
"Larry Jaques" wrote in message ... On Thu, 25 Mar 2010 22:17:59 -0700 (PDT), the infamous " scrawled the It couldn't be. I'm a racist. Lew said so. g Where do you race? Me, I'm a typist. ;~) |
Jet Parallel Clamps... NOT Parallel?
"Leon" wrote Where do you race? Me, I'm a typist. ;~) With a true talent and flair for typos. ;-) |
Jet Parallel Clamps... NOT Parallel?
"Leon" wrote in
: Where do you race? Me, I'm a typist. ;~) Do you type with both hands at the same time? Then you're a stereo typist. Puckdropper -- Never teach your apprentice everything you know. |
Jet Parallel Clamps... NOT Parallel?
On Fri, 26 Mar 2010 23:25:40 -0400, the infamous "Lee Michaels"
scrawled the following: "Leon" wrote Where do you race? Me, I'm a typist. ;~) With a true talent and flair for typos. ;-) I think he INVENTED them, Lee. ;/ -- "Not always right, but never uncertain." --Heinlein -=-=- |
Jet Parallel Clamps... NOT Parallel?
"Lee Michaels" wrote in message ... "Leon" wrote Where do you race? Me, I'm a typist. ;~) With a true talent and flair for typos. ;-) Yeah there is that 2. ;~) I can't afford a spell checher that can read my mind yet. |
Jet Parallel Clamps... NOT Parallel?
"Puckdropper" puckdropper(at)yahoo(dot)com wrote in message ... "Leon" wrote in : Where do you race? Me, I'm a typist. ;~) Do you type with both hands at the same time? Then you're a stereo typist. I think I am a stereo pecker. ;~) Looooooooooooooooong a go I typed "good enough". My son is about 90 words per minute. He has indicated that he has never seen any one type as fast as me using only 2 left fingers and my right thumb and right 2 fingers. I'd probably type with my left thumb if it were normal length. An alteration I made on it 20 years ago left it short. ;~) |
Jet Parallel Clamps... NOT Parallel?
On 3/27/2010 12:25 PM, Leon wrote:
thumb and right 2 fingers. I'd probably type with my left thumb if it were normal length. An alteration I made on it 20 years ago left it short. ;~) You know what they say - Measure twice, cut once ... g,d & r -- www.e-woodshop.net Last update: 10/22/08 KarlC@ (the obvious) |
Jet Parallel Clamps... NOT Parallel?
On Wed, 24 Mar 2010 16:38:59 -0500, -MIKE- wrote:
Am I wrong or are parallel clamps supposed to be parallel? On my Jets, the end clamp section tilts in a bit and the adjustable end tilts in a bit (1/32-1/16"), after tightening. Is there an adjustment procedure with these or are parallel clamps just supposed to be "close to parallel?" The description of some parallel clamps (I think they were Blessy) in one of the woodworking catalogs says that the adjustable end is tilted 1.5 degrees. Probably so that pressure equalizes along the face of the clamp when it is drawn tight. -- Mike Eager |
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