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#1
Posted to rec.woodworking
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Jointing problems
Trying to get 42" long 6" nominal width boards of nice white oak jointed to
glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? -- Best regards Han email address is invalid |
#2
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Jointing problems
On 10 Dec 2012 20:33:37 GMT, Han wrote:
Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? It sounds like you infeed table of the jointer is out of adjustment. -- Jack Novak Buffalo, NY - USA |
#3
Posted to rec.woodworking
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Jointing problems
On 12/10/2012 2:33 PM, Han wrote:
Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? First thing to try: Providing the machine/tables are setup properly, the infeed and outfeed combined may not long enough for the board length, and possibly your technique. From your description, it sounds as if you may be inadvertently applying downward pressure over the knives in the middle of the pass ... it doesn't take much to get the symptom you are describing above. Try another pass: when the leading edge of the board passes to the outfeed table to the point where there is enough room (about a third of half way), smoothly transfer one hand, then the other, so that _both_ are on the outfeed table, and far enough away from the knives so that any downward pressure on the board is transferred to the outfeed table only. See if that doesn't help ... if it doesn't, then you either have a setup problem, or the length of the boards are just to great for the size of the machine ... however, you can often overcome this with practiced technique. A plane would work, but may take more technique, so either check the jointer setup, or practice your technique on some scrap until you get the results you're looking for. -- eWoodShop: www.eWoodShop.com Wood Shop: www.e-WoodShop.net https://plus.google.com/114902129577517371552/posts KarlCaillouet@ (the obvious) |
#4
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Jointing problems
On Mon, 10 Dec 2012 15:49:20 -0500, Nova wrote:
On 10 Dec 2012 20:33:37 GMT, Han wrote: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? It sounds like you infeed table of the jointer is out of adjustment. OOPs! make that outfeed table. -- Jack Novak Buffalo, NY - USA |
#5
Posted to rec.woodworking
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Jointing problems
Han wrote:
Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? Me Who Has No Experience says: Your glue-up would go better if it were 1/16" (or probably even more) FATTER in the middle--that's supposed to be even better than FLAT. With that in mind, I would hack out wood away from the middle, of course, the same amount on each side. Maybe a final pass through the jointer, smoothing off just 1/32" with your goal in mind. Then see how two of them clamp. Please let me know how works out! Hopefully, someone will correct me if I'm too far off base. Good luck! And, careful on the "hacking" part! : ) Bill |
#6
Posted to rec.woodworking
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Jointing problems
Bill wrote in :
Han wrote: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? Me Who Has No Experience says: Your glue-up would go better if it were 1/16" (or probably even more) FATTER in the middle--that's supposed to be even better than FLAT. With that in mind, I would hack out wood away from the middle, of course, the same amount on each side. Maybe a final pass through the jointer, smoothing off just 1/32" with your goal in mind. Then see how two of them clamp. Please let me know how works out! Hopefully, someone will correct me if I'm too far off base. Good luck! And, careful on the "hacking" part! : ) Bill Thanks, guys! -- Best regards Han email address is invalid |
#7
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Jointing problems
Swingman wrote in
: On 12/10/2012 2:33 PM, Han wrote: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? First thing to try: Providing the machine/tables are setup properly, the infeed and outfeed combined may not long enough for the board length, and possibly your technique. I haven't done too many of these operations, but they worked before ... From your description, it sounds as if you may be inadvertently applying downward pressure over the knives in the middle of the pass ... it doesn't take much to get the symptom you are describing above. That's probably it! Try another pass: when the leading edge of the board passes to the outfeed table to the point where there is enough room (about a third of half way), smoothly transfer one hand, then the other, so that _both_ are on the outfeed table, and far enough away from the knives so that any downward pressure on the board is transferred to the outfeed table only. See if that doesn't help ... if it doesn't, then you either have a setup problem, or the length of the boards are just to great for the size of the machine ... however, you can often overcome this with practiced technique. A plane would work, but may take more technique, so either check the jointer setup, or practice your technique on some scrap until you get the results you're looking for. Thanks, Karl! I'll try again ... -- Best regards Han email address is invalid |
#8
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Jointing problems
Bill writes:
Han wrote: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? Me Who Has No Experience says: Your glue-up would go better if it were 1/16" (or probably even more) FATTER in the middle--that's supposed to You have this backwards. You want a "sprung" joint, such that the ends contact before the middle. 1/16" is a bit much for a sprung joint, however; 1/64th-1/32nd would be better. There are opinions on both sides of the sprung-joint story. scott |
#9
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Jointing problems
Han wrote in
: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? I tried re-jointing, but I think the beds of the jointer aren't long enough. I started a glue-up as a trial with 3 boards (I need a few inches more later). When the glue has dried, I'll saw along the glueline with my fancy Freud blade to make "jointed" edges, then re-glue the boards. I have another shelf to make and the not yet jointed boards line up better ... I tried to make a better shelf, and muffed it up on the first try. Oh well trial and error hits again. -- Best regards Han email address is invalid |
#11
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Jointing problems
On Monday, December 10, 2012 2:16:55 PM UTC-8, Han wrote:
Han wrote in : Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? I tried re-jointing, but I think the beds of the jointer aren't long enough. I started a glue-up as a trial with 3 boards (I need a few inches more later). When the glue has dried, I'll saw along the glueline with my fancy Freud blade to make "jointed" edges, then re-glue the boards. I have another shelf to make and the not yet jointed boards line up better ... I tried to make a better shelf, and muffed it up on the first try. Oh well trial and error hits again. -- Best regards Han email address is invalid When you joint, get your down pressure onto the outfeed table as soon as possible then pull the bord across the blades with pressure down in the foirst few inches to mid point of outfeed table. |
#12
Posted to rec.woodworking
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Jointing problems
On 12/10/2012 3:33 PM, SonomaProducts.com wrote:
On Monday, December 10, 2012 2:16:55 PM UTC-8, Han wrote: Han wrote in : Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? I tried re-jointing, but I think the beds of the jointer aren't long enough. I started a glue-up as a trial with 3 boards (I need a few inches more later). When the glue has dried, I'll saw along the glueline with my fancy Freud blade to make "jointed" edges, then re-glue the boards. I have another shelf to make and the not yet jointed boards line up better ... I tried to make a better shelf, and muffed it up on the first try. Oh well trial and error hits again. -- Best regards Han email address is invalid When you joint, get your down pressure onto the outfeed table as soon as possible then pull the bord across the blades with pressure down in the foirst few inches to mid point of outfeed table. i wonder if a hold down, similar to board buddies, would be a good idea to make this an easier repeatable task. |
#13
Posted to rec.woodworking
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Jointing problems
"Han" wrote: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? ------------------------------------------------------------------- If this is that 4" wide, benchtop jointer, then your 42" long board is the problem. I always had the same problem on boards much over 30" long. I ended up using a straight edge and a router with a pattern bit. Lew |
#14
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Jointing problems
On 12/10/2012 4:16 PM, Han wrote:
Han wrote in : Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? I tried re-jointing, but I think the beds of the jointer aren't long enough. I started a glue-up as a trial with 3 boards (I need a few inches more later). When the glue has dried, I'll saw along the glueline with my fancy Freud blade to make "jointed" edges, then re-glue the boards. I have another shelf to make and the not yet jointed boards line up better ... I tried to make a better shelf, and muffed it up on the first try. Oh well trial and error hits again. I used to straighten my boards with a piece of 12" wide plywood and my TS. Clamp the board to the plywood with the edge you want to straighten overhanging the plywood. Run the edge of the plywood against the rip fence. Now I use my Festool track saw. ;~) |
#15
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Jointing problems
On 12/10/2012 3:33 PM, Han wrote:
Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? perfect. I like a sprung joint since the ends shrink faster than the middle. Hard to say what you did wrong. |
#16
Posted to rec.woodworking
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Jointing problems
On 12/10/2012 3:58 PM, Bill wrote:
Han wrote: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? Me Who Has No Experience says: Your glue-up would go better if it were 1/16" (or probably even more) FATTER in the middle--that's supposed to be even better than FLAT. With that in mind, I would hack out wood away from the middle, of course, the same amount on each side. Maybe a final pass through the jointer, smoothing off just 1/32" with your goal in mind. Then see how two of them clamp. Please let me know how works out! Hopefully, someone will correct me if I'm too far off base. Good luck! And, careful on the "hacking" part! : ) Bill Interesting Bill. But very confusing.. fatter in the middle????? in my mind a sprung joint is better. especially in the summer, less so in the winter. Wood shrinks faster at the ends. so having an extra swipe with a hand plane in the center is desirable . living in the NE it's highly desirable... In Louisiana maybe not. |
#17
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Jointing problems
tiredofspam wrote:
On 12/10/2012 3:58 PM, Bill wrote: Han wrote: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? Me Who Has No Experience says: Your glue-up would go better if it were 1/16" (or probably even more) FATTER in the middle--that's supposed to be even better than FLAT. With that in mind, I would hack out wood away from the middle, of course, the same amount on each side. Maybe a final pass through the jointer, smoothing off just 1/32" with your goal in mind. Then see how two of them clamp. Please let me know how works out! Hopefully, someone will correct me if I'm too far off base. Good luck! And, careful on the "hacking" part! : ) Bill Interesting Bill. But very confusing.. fatter in the middle????? I explored a little, and evidently I had it backwards (so Han is doing it right)! My bad. in my mind a sprung joint is better. especially in the summer, less so in the winter. Wood shrinks faster at the ends. so having an extra swipe with a hand plane in the center is desirable . living in the NE it's highly desirable... In Louisiana maybe not. |
#18
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Jointing problems
Leon wrote:
I used to straighten my boards with a piece of 12" wide plywood and my TS. Clamp the board to the plywood with the edge you want to straighten overhanging the plywood. Run the edge of the plywood against the rip fence. Now I use my Festool track saw. ;~) Leon - stop it! Behave or we'll have Lew "respond" to your posts... -- -Mike- PS - for any newbies out there... be careful of Leon - he is a closet Festools Marketing Guy and he gets a lot of money for getting people here to buy Festools. Be aware though - he will not send one of his Festools to you to try out before buying. He's all Festools until he is asked to pony up... -- -Mike- |
#19
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Jointing problems
tiredofspam wrote:
On 12/10/2012 3:58 PM, Bill wrote: Han wrote: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? Me Who Has No Experience says: Your glue-up would go better if it were 1/16" (or probably even more) FATTER in the middle--that's supposed to be even better than FLAT. With that in mind, I would hack out wood away from the middle, of course, the same amount on each side. Maybe a final pass through the jointer, smoothing off just 1/32" with your goal in mind. Then see how two of them clamp. Please let me know how works out! Hopefully, someone will correct me if I'm too far off base. Good luck! And, careful on the "hacking" part! : ) Bill Interesting Bill. But very confusing.. fatter in the middle????? I realize now I mixed up with the concept of "clamping cauls". That's the problem with beginners... %-) in my mind a sprung joint is better. especially in the summer, less so in the winter. Wood shrinks faster at the ends. so having an extra swipe with a hand plane in the center is desirable . living in the NE it's highly desirable... In Louisiana maybe not. |
#20
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Jointing problems
On 10 Dec 2012 20:33:37 GMT, Han wrote:
Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? Are you talking edge jointing? Sled and tablesaw. |
#21
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Jointing problems
On Mon, 10 Dec 2012 20:33:37 +0000, Han wrote:
Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? If you can get that down to a fat 64th, you've done it just right - compressing that gap with clamps puts enough pressure on the ends to ensure that they won't separate over time. -- When fascism comes to America, it will be wrapped in the flag and carrying a cross. |
#22
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Jointing problems
On 12/10/2012 8:35 PM, Mike Marlow wrote:
Leon wrote: I used to straighten my boards with a piece of 12" wide plywood and my TS. Clamp the board to the plywood with the edge you want to straighten overhanging the plywood. Run the edge of the plywood against the rip fence. Now I use my Festool track saw. ;~) Leon - stop it! Behave or we'll have Lew "respond" to your posts... Who? |
#23
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Jointing problems
Han wrote:
Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? How little is the joiner? It sounds like the outfeed table is a touch low...while you have pressure on the board on the infeed, the board end isn't getting cut...later, when you have pressure on the outfeed side of the board, the center is being cut. -- dadiOH ____________________________ Winters getting colder? Tired of the rat race? Maybe just ready for a change? Check it out... http://www.floridaloghouse.net |
#24
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Jointing problems
"dadiOH" wrote in :
Han wrote: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? How little is the joiner? It sounds like the outfeed table is a touch low...while you have pressure on the board on the infeed, the board end isn't getting cut...later, when you have pressure on the outfeed side of the board, the center is being cut. Good thought! Thanks! -- Best regards Han email address is invalid |
#25
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Jointing problems
Ed Pawlowski wrote in
: On 10 Dec 2012 20:33:37 GMT, Han wrote: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? Are you talking edge jointing? Sled and tablesaw. Good thought, but I can't fit a 42" long board on my sled I glued the boards together and will cut through the glued joint with my fancy Freud blade to "joint" the edges that way, then reglue the boards. -- Best regards Han email address is invalid |
#26
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Jointing problems
On 12/11/2012 10:40 AM, Han wrote:
I glued the boards together and will cut through the glued joint with my fancy Freud blade to "joint" the edges that way, then reglue the boards. Depending upon the wood, its grain and any released tension, that may or may not work. Simply make a jointing sled for your table saw: http://www.toolcrib.com/blog/2009/02...dge-no-jointer That one is more complicated than necessary, but you get the idea. This one is simple and would be easy to make ... used one like it for years before buying a jointer: http://www.rockler.com/product.cfm?p...5&site=ROCKLER -- eWoodShop: www.eWoodShop.com Wood Shop: www.e-WoodShop.net https://plus.google.com/114902129577517371552/posts KarlCaillouet@ (the obvious) |
#27
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Jointing problems
Swingman wrote in
: On 12/11/2012 10:40 AM, Han wrote: I glued the boards together and will cut through the glued joint with my fancy Freud blade to "joint" the edges that way, then reglue the boards. Depending upon the wood, its grain and any released tension, that may or may not work. Simply make a jointing sled for your table saw: http://www.toolcrib.com/blog/2009/02...-jig-plans-str aight-edge-no-jointer That one is more complicated than necessary, but you get the idea. This one is simple and would be easy to make ... used one like it for years before buying a jointer: http://www.rockler.com/product.cfm?p...5&site=ROCKLER It seemed to work - Now gluing it up https://plus.google.com/photos/10653...s/582074621296 8281185?authkey=CPPji_beg6TKkwE Looking at those setups now! -- Best regards Han email address is invalid |
#28
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Jointing problems
Han wrote:
Swingman wrote in : On 12/11/2012 10:40 AM, Han wrote: I glued the boards together and will cut through the glued joint with my fancy Freud blade to "joint" the edges that way, then reglue the boards. Depending upon the wood, its grain and any released tension, that may or may not work. Simply make a jointing sled for your table saw: http://www.toolcrib.com/blog/2009/02...-jig-plans-str aight-edge-no-jointer That one is more complicated than necessary, but you get the idea. This one is simple and would be easy to make ... used one like it for years before buying a jointer: http://www.rockler.com/product.cfm?p...5&site=ROCKLER It seemed to work - Now gluing it up https://plus.google.com/photos/10653...s/582074621296 8281185?authkey=CPPji_beg6TKkwE Looking at those setups now! You could use less glue. -- dadiOH ____________________________ Winters getting colder? Tired of the rat race? Maybe just ready for a change? Check it out... http://www.floridaloghouse.net |
#29
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Jointing problems
"dadiOH" wrote in :
You could use less glue. Probably ... -- Best regards Han email address is invalid |
#30
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Jointing problems
Leon wrote:
I used to straighten my boards with a piece of 12" wide plywood and my TS. Clamp the board to the plywood with the edge you want to straighten overhanging the plywood. Run the edge of the plywood against the rip fence. Note of concern about this. In the latest issue of FWW (#231, Feb/2013, p.7): There is a "letter to the editor" indicating that making a "tapered cutoff", as described in an earlier issue (much like you described above), resulted in a the offcut falling into the back of the blade resulting in kickback and many stiches to the person's face. The accident was due to the person not using a riving knife, which would have separated the offcut, but the riving knife wasn't mentioned in the article. Peronally, I don't think I would have foreseen the accident described above. It reminds me just enough of what you described above, to mention it--especially for the sake of anyone using a TS without a riving knife. Bill Now I use my Festool track saw. ;~) |
#31
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Jointing problems
On 12/10/2012 2:33 PM, Han wrote:
Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? As another asked (and I've not seen answered) how little is "little"? A 4" benchtop w/ only 14-16" tables could be a trick, perhaps, but a full-size jointer, even if only 4" should be able to do 42" w/o too much trouble and certainly a 6". Not knowing the model, here's a link to the Delta sheet for one of the 6" guys that describes how the adjustments are done... Another suggested the outfeed table is low--that really isn't the symptom for that; generally there you'd see a gouge at the tail end of the cut as it drops of the table is low as the end of the piece comes off the infeed table. If the outfeed is high, it will cause a curved workpiece but the work will be slightly convex, not concave because as Fig 18 shows in the link the edge will ride on the front lip of the outfeed table initially as the work is held down on the infeed. But, if the pressure is shifted to the outfeed only, then if it is high, less will be taken from the trailing edge. The other possible problem is that the table sags... http://servicenet.deltamachinery.com...oductId=71513& productType=undefined&documentId=38554& translatedFileName=http://documents.dewalt.com/documents/English /Instruction%20Manual/Delta/En418-03-651-0001.pdf Likely it's a combination of perhaps of technique and alignment. How near straight an edge did you have to start with? Did you try to take any initial curvature out by working either both ends from the middle if it were concave or just hit the middle a couple of times if convex? If it's long and had a bow to begin with, you may have just followed the initial shape and simply lessened it just a little... I've done (w/ effort) pieces as long a 6-ft on a little 6" Craftsman successfully so one _can_ stretch the limits w/ care and practice... -- |
#32
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Jointing problems
On 12/11/2012 12:37 PM, Bill wrote:
Peronally, I don't think I would have foreseen the accident described above. It reminds me just enough of what you described above, to mention it--especially for the sake of anyone using a TS without a riving knife. I don't know of a single commercially available table saw that does not come with, at a minimum, a splitter. Be careful what you see in these magazines about safety, some of it is valid, some sheer political correctness. Awareness of and an unflagging practice of "Safety" in the shop is unarguably the single most valuable component of a lasting enjoyment of same. However, too often in the current world of print and bits and bytes, playing the "safety" card has become a mixture of the tone of political correctness, a whiff of wikipedia wisdom, and a nagging fear of being held accountable, presented in toto with a smug assertiveness that presupposes the purveyor's superior ken, but, in actuality is little more than ignorance of underlying issues swept under the shop mat. -- eWoodShop: www.eWoodShop.com Wood Shop: www.e-WoodShop.net https://plus.google.com/114902129577517371552/posts KarlCaillouet@ (the obvious) |
#33
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Jointing problems
Swingman wrote:
On 12/11/2012 12:37 PM, Bill wrote: Peronally, I don't think I would have foreseen the accident described above. It reminds me just enough of what you described above, to mention it--especially for the sake of anyone using a TS without a riving knife. I don't know of a single commercially available table saw that does not come with, at a minimum, a splitter. Be careful what you see in these magazines about safety, some of it is valid, some sheer political correctness. Awareness of and an unflagging practice of "Safety" in the shop is unarguably the single most valuable component of a lasting enjoyment of same. However, too often in the current world of print and bits and bytes, playing the "safety" card has become a mixture of the tone of political correctness, a whiff of wikipedia wisdom, and a nagging fear of being held accountable, presented in toto with a smug assertiveness that presupposes the purveyor's superior ken, but, in actuality is little more than ignorance of underlying issues swept under the shop mat. I definitely agree with you. When did "splitters" start being required on new saws? BTW, the page number is 12, and the letter was from Andy Olerud from Driggs, Idaho. Maybe he is reading? |
#34
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Jointing problems
Bill wrote in :
Swingman wrote: On 12/11/2012 12:37 PM, Bill wrote: Peronally, I don't think I would have foreseen the accident described above. It reminds me just enough of what you described above, to mention it--especially for the sake of anyone using a TS without a riving knife. I don't know of a single commercially available table saw that does not come with, at a minimum, a splitter. Be careful what you see in these magazines about safety, some of it is valid, some sheer political correctness. Awareness of and an unflagging practice of "Safety" in the shop is unarguably the single most valuable component of a lasting enjoyment of same. However, too often in the current world of print and bits and bytes, playing the "safety" card has become a mixture of the tone of political correctness, a whiff of wikipedia wisdom, and a nagging fear of being held accountable, presented in toto with a smug assertiveness that presupposes the purveyor's superior ken, but, in actuality is little more than ignorance of underlying issues swept under the shop mat. I definitely agree with you. When did "splitters" start being required on new saws? BTW, the page number is 12, and the letter was from Andy Olerud from Driggs, Idaho. Maybe he is reading? My Craftsman table saw dates from the '80s, I believe. It came with a splitter of sorts, complete with antikickback pawls and a bladeguard. This combination is mounted on the back of the saw and it should be in place for all cuts except dado. I do know I should have always used it, because it is necessary. DAMHIKT!! Btw, the instructions say to occasionally sharpen the teeth on the antikickbackpawls, but you know ... -- Best regards Han email address is invalid |
#35
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Jointing problems
dpb wrote in :
On 12/10/2012 2:33 PM, Han wrote: Trying to get 42" long 6" nominal width boards of nice white oak jointed to glue up for a shelf. Now the boards touch at the ends, but have 1/16" or so gaps in the middle. What did I do wrong with this jointing on my little Delta jointer? Should I try a handplane? As another asked (and I've not seen answered) how little is "little"? A 4" benchtop w/ only 14-16" tables could be a trick, perhaps, but a full-size jointer, even if only 4" should be able to do 42" w/o too much trouble and certainly a 6". Not knowing the model, here's a link to the Delta sheet for one of the 6" guys that describes how the adjustments are done... Another suggested the outfeed table is low--that really isn't the symptom for that; generally there you'd see a gouge at the tail end of the cut as it drops of the table is low as the end of the piece comes off the infeed table. If the outfeed is high, it will cause a curved workpiece but the work will be slightly convex, not concave because as Fig 18 shows in the link the edge will ride on the front lip of the outfeed table initially as the work is held down on the infeed. But, if the pressure is shifted to the outfeed only, then if it is high, less will be taken from the trailing edge. The other possible problem is that the table sags... http://servicenet.deltamachinery.com...t?docName=En41 8-03-651-0001.pdf&productId=71513& productType=undefined&documentId=38554& translatedFileName=http://documents.dewalt.com/documents/English /Instruction%20Manual/Delta/En418-03-651-0001.pdf Likely it's a combination of perhaps of technique and alignment. How near straight an edge did you have to start with? Did you try to take any initial curvature out by working either both ends from the middle if it were concave or just hit the middle a couple of times if convex? If it's long and had a bow to begin with, you may have just followed the initial shape and simply lessened it just a little... I've done (w/ effort) pieces as long a 6-ft on a little 6" Craftsman successfully so one _can_ stretch the limits w/ care and practice... Thanks for the extensive comments. Much appreciated! My jointer is a 6" Delta Shopmaster model JT160. The instructions say nothing about my problem. I am rather sure it's my technique that did this. I have to get the thing in a better place and practice with some disposable wood. OTOH, one of the jigs that Karl (Swingman) mentioned may do the trick too. The boards were pretty straight-edged to begin with. But the edges were a bit rounded. Perhaps I'll just glue the next set and then sand them down, or the other way around. At least this is/was a woodworking discussion !!! -- Best regards Han email address is invalid |
#36
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Jointing problems
Han wrote:
Btw, the instructions say to occasionally sharpen the teeth on the antikickbackpawls, but you know ... I never even heard anyone mention that before, but it makes sense! If they lose their grip, it's probably time. How often do they mean by "occasionally"? That must have been written in by a lawyer. : ) |
#37
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Jointing problems
Bill wrote in :
Han wrote: Btw, the instructions say to occasionally sharpen the teeth on the antikickbackpawls, but you know ... I never even heard anyone mention that before, but it makes sense! If they lose their grip, it's probably time. How often do they mean by "occasionally"? That must have been written in by a lawyer. : ) Juast going by memory. I had to peruse the manual a little while ago. I have always had a bit of trouble getting the blade adjusted to an angle, and then back to 90°. The Wixey digital angle readout widget is always a great help. -- Best regards Han email address is invalid |
#38
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Jointing problems
On 12/11/2012 2:08 PM, Han wrote:
My jointer is a 6" Delta Shopmaster model JT160. The instructions say nothing about my problem. I am rather sure it's my technique that did this. Might not be all your technique ... spend some time being anal about the tables being set up properly. Chances that it was done to a gnat's ass at the factory is slim to none. I have to get the thing in a better place and practice with some disposable wood. OTOH, one of the jigs that Karl (Swingman) mentioned may do the trick too. The general rule of thumb for the length of board you can practically joint on any particular jointer is 1 1/2 times the combined length of the tables. IOW, on a well set up jointer with a combined table length of +/- 30", and with proper technique, the average user can practically joint boards in the neighborhood of 45" in length. This can be increased with practiced technique, but probably not much more than double for all practical purposes, and that will take some practiced experience. -- eWoodShop: www.eWoodShop.com Wood Shop: www.e-WoodShop.net https://plus.google.com/114902129577517371552/posts KarlCaillouet@ (the obvious) |
#39
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Jointing problems
"Han" wrote in message ... Bill wrote in : Btw, the instructions say to occasionally sharpen the teeth on the antikickbackpawls, but you know ... Rip or Cross-Cut? ;~) |
#40
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Jointing problems
On 12/11/12 1:00 PM, Swingman wrote:
On 12/11/2012 12:37 PM, Bill wrote: Peronally, I don't think I would have foreseen the accident described above. It reminds me just enough of what you described above, to mention it--especially for the sake of anyone using a TS without a riving knife. I don't know of a single commercially available table saw that does not come with, at a minimum, a splitter. Be careful what you see in these magazines about safety, some of it is valid, some sheer political correctness. Awareness of and an unflagging practice of "Safety" in the shop is unarguably the single most valuable component of a lasting enjoyment of same. However, too often in the current world of print and bits and bytes, playing the "safety" card has become a mixture of the tone of political correctness, a whiff of wikipedia wisdom, and a nagging fear of being held accountable, presented in toto with a smug assertiveness that presupposes the purveyor's superior ken, but, in actuality is little more than ignorance of underlying issues swept under the shop mat. Many other times, these letter to the editor leave out key aspects of the incident which illustrate proof of the writer's foolishness and/or ignorance that was the cause of the problem to begin with. Such letters are generally the writer's own therapy. -- -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 |
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