Results 2,351 to 2,375 of 3028
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04-06-2021, 01:10 AM #2351
For clarification, my issue is bows between the boards not lining up or being pulled flat by the cauls in the long direction, not the whole piece cupping (but now I'm scared and should go back and check that too). Panel is currently 27" x ~98"
Built up a 8' long jointing sled for the table saw and did the best I could with the 8'+ long pieces. Started with S3S, cleaned up the rough edge and let it sit in the garage for two months or so. Laid out the pieces and then match ripped the edges, flipping the boards to deal with any error in the saw setup. Ran all of it through the planer for consistent thickness, but I don't have the stuff to make a sled long enough to shim it up to try and remove a bow or twist. Working with 3/4" material here, so planing out a bow over 8' would leave me with something really thin anyway. Most of it was pretty flat to begin with, but certainly wasn't dead flat. Checked that the joints were tight after planing and re-ripped one troublesome piece to get everything to the point daylight wasn't coming through (mostly, they're still 8' long and tough to pass through the saw perfectly). Checked the joints for gaps one last time prior to gluing, looked good, and I went for it.
I don't have a biscuit or domino joiner and can't really justify the cost for a one project use. I thought about putting in some dowels to help with alignment and pulling out bows, but figured I'd probably make things worse by inaccurately installing some dowels with my simple dowel jig and cordless drill vs. just using a bunch of cauls. How do biscuits reduce sanding if it's not working the boards flat one to the next?
If I had access to a 24" hand planer, that would probably do the trick real fast. Again, trying to avoid buying one time use expensive tools here. If I can find my way into using it for future projects, then maybe I can talk myself into it.I've concluded that DJSapp was never DJSapp, and Not DJSapp is also not DJSapp, so that means he's telling the truth now and he was lying before.
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04-06-2021, 05:36 AM #2352
Call around some local cabinet shops, many will rent time on a wide belt sanding machine (time saver). As for biscuits, I've never been a fan. Take your time, use slow glue and use a dead blow. You can get them pretty close.
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04-06-2021, 06:03 AM #2353Registered User
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- Sep 2011
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- Vermont
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- 1,491
DJ- that’s going to be an awesome looking cabinet. Sounds like a bit of hand work to get it smooth but it’ll all work out, I’ve been through these issues more than I should. Lots of great advice so far.
To me it sounds like the missing piece was starting at the jointer. The planer will keep the bows and twists in the wood while making sure the thickness is consistent. If one side was face jointed flat before running through the planer it would have removed those twists.
If you’re going to buy a tool to correct the issue and it’s a tool you’re likely to use in the future, a belt sander may be a good option. Have to be careful not to mess it all up but it can be done. Tool to prevent in the future would be a jointer, especially if you have a planer. The two go hand in hand. Opens up the ability to get rough cut lumber and make it perfect.
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04-06-2021, 08:50 AM #2354
Viva needs some old-fashioned hand planes. A #7 for jointing and a #4 for cleaning up the glued-up panel.
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04-06-2021, 08:58 AM #2355
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04-06-2021, 09:03 AM #2356
somehow I never understood the jointer...i mean, i understand the mechanics of it.
but everytime I’ve used one, I overpressure something and end up with a trapezoid section instead of a rectangle...instead of flattening a surface, i was progressing digging it out
The local craft college where i was using equip had dialed equip too — it was def something i was fucking up
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04-06-2021, 09:29 AM #2357
The problem for the hobbyist with power jointers is they are bulky, heavy and expensive if you want to do more than edge jointing. You could rig up a router on a sled to surface the table top, or just do it by hand. Even something as prosaic as a #5 plane could get you a decent bit towards flat.
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04-06-2021, 09:31 AM #2358
1. Edges were as close to a perfect 90 as I could get, but I did match rip the edges to joint them to account for any error here as well (i.e. rip left side of each board face up, rip right side of each board face down. Any error in setup angle would match like this \\ but it would be prone to slide under clamping pressure)
2. I had intended to, but one clamp wasn't opening wide enough for some damn reason. 4 under, 3 over, 3 cauls, and a couple right on the ends of the troublesome ones.
3. Progressively tightened and didn't go crazy. I didn't have blocks between the pipe clamps and the work and was afraid of damaging the work. Did have good squeeze out
4. 10-4, will use blocks for the next panel. Got enough hardwood scrap from the legs now.
5. Correct on the 5 boards here, next panel is only 4 boards. For some reason I though doing it in steps would introduce the potential to make things worse, that it would be harder to move pieces into position if I was trying to flex a 3 board panel and a 2 board panel into perfect alignment.
Yeah, a 12" jointer with a 84" bed and a 5000 sqft shop are on my dream list, but I'm not there yet. I have a face jointing sled for boards up to 4' long that I can shim a piece up and run it through the planer to remove twists and bows, but it wasn't going to handle 8'+ long boards.
I think my local store might rent a belt sander or a electric planer (that scares me in this use case). Any downside to just sticking with the random orbit, some 80 grit, and time?I've concluded that DJSapp was never DJSapp, and Not DJSapp is also not DJSapp, so that means he's telling the truth now and he was lying before.
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04-06-2021, 09:32 AM #2359Registered User
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- Jan 2014
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- Gaperville, CO
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- 5,850
Damn -- that's sexy DJ.
My in-progress project -- a sink/kitchen cabinet that can be quickly install/removed from our minivan. Pretty limited tool setup means some of my angles are wonky (no miter or table saw), but so far it's functional. We will see how accurately I can build the drawers on the lower left with a circular saw....
One thing I'm learning....all hardware for cabinets assumes 3/4". I made this from 1/2" birch ply to save weight/space. But it means a lot of hunting for appropriately short screws.
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04-06-2021, 09:33 AM #2360
I used to work for a design/build firm where the owner/GC was a real deal architect and if he ever came to the jobsite and put his bags on, all the "real" carpenters would threaten to leave for the day. So this checks out.
But yeah, the secret to perfect jointing starts with perfect machine set up and is then about understanding how and where to gently apply pressure, while letting the machine do all the work.
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04-06-2021, 09:52 AM #2361
Best $40 you can spend if you don't have a miter or table saw
https://www.homedepot.com/p/Kreg-24-...2685/302781709
Combine that with a 4'x8' piece of styrafoam ($15) for full support under your plywood and you can be pretty damn accurate with a circular saw.I've concluded that DJSapp was never DJSapp, and Not DJSapp is also not DJSapp, so that means he's telling the truth now and he was lying before.
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04-06-2021, 09:53 AM #2362Registered User
- Join Date
- Sep 2011
- Location
- Vermont
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- 1,491
Took me a bit to get the hang of it but after redoing all the wood trim in the house with maple that I bought rough I’ve got it down. It’s a zen like process trying to figure out where to start on piece of wood. Seeing how it twists and where the grain goes. Lots of light passes to get where it’s needed. Really rewarding to uncover what the wood looks like as you process it.
I’m lucky I picked up my delta 6” about 20 years ago. As I recall it was just a few hundred dollars and I justified it because of the difference in buying rough lumber. Just looked at the delta site and they only do a bench top jointer these days which is sad. I’d like to someday get a 10” or 12” jointer planer with helical blades but I’m happy now.
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04-06-2021, 09:53 AM #2363
If I understand you, the individual boards are bowed and when you glue them up some of the boards are convex upward, some are concave upward, maybe some aren't bowed at all, and the cauls aren't getting things lined up. Most of my suggestions won't help with that. The biscuit joiner would, but not perfectly IME. Doing the glue up in stages--suggestion 5, would help because you could concentrate on just one joint at a time. I might even do 2 boards at a time, then add the 5th board to one of the pairs, then do the final glue up. That way you would only have one joint to worry about at every stage. Using a slower glue might help as well. I think Titebond 3 is slower than 1 or 2 but you better check me on that.
Unless you get lucky with finding perfectly flat boards it's tough to get perfect glue ups with S3S lumber of your finished thickness. When I can find rough lumber I use that and joint and plane it. For years I did it by hand with planes, now I have a 10 in jointer-planer. Mostly I can only find surfaced lumber so I wind up buying it thicker than finished size so I can still joint and plane it flat--if I want 3/4 in finished thickness I buy 5/4 or 6/4 boards . It's expensive.
By 5/4 or 6/4 I'm referring to the standard way of describing hardwood. A 5/4 board started out as 1 1/4 in thick but by the time it is surfaced at the lumber yard it's down to an inch or so, which gives me room the flatten it and wind up with 3/4 in.
Don't be too sure about the jointer being dialed. Check it yourself. It's critical on a jointer that the tables be perfectly parallel. Find a 6' straight edge--a good one, raise the infeed table to the height of the outfeed table, and lay the straight edge so it spans both tables. There shouldn't be a gap with light showing through anywhere along the straightedge.
One thing I have learned teaching in a community shop--check every tool before using. Don't assume the chop saw or table saw or jointer fence is set at 90 degrees. And if you adjust a tool so it's not at 90, return it to 90 when you're done. Jointer fences are a particular problem--even in my own shop I have to keep checking that the fence is at 90. There are gremlins that lie to change it a degree or two overnight.
As far as jointing technique the key is that as soon as enough wood as passed over the cutter head, all your pressure should be on the outfeed table. You are basically pulling the board over the cutter head, not pushing it into it.
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04-06-2021, 09:58 AM #2364
i know you like to dig at us, but we're actually pretty crafty bunch (& hyper particular about accuracy)
my jointer handicap notwithstanding
shop guy & other people there didn't have my handicap
it was a college of craft with a shop super who was the prof -- it was pretty well dialed
he ran stuff fine & I consistently fucked up stuff on that machine
^^^prolly thisLast edited by ::: :::; 04-06-2021 at 10:19 AM.
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04-06-2021, 10:08 AM #2365
A couple other things. Clamp everything without glue first, so you know where the problems are. Clamp the boards across the middle first, making sure they are perfectly aligned. Then align the ends however you can--with a clamp, a mallet--and then clamp. Then tighten the clamps in the middle.
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04-06-2021, 10:17 AM #2366Registered User
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- Gaperville, CO
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- 5,850
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04-06-2021, 10:26 AM #2367
Yup, you got the picture. I'll see if I can get a better photo tonight.
I have a big bottle of TB2 and you're right 3 has a longer working time. I did feel rushed doing all 5 boards, so fewer joints to focus on would feel better for sure. The local hardwood stores don't have a huge selection of 5/4, 6/4, or 8/4 walnut, but one has consistently had a couple sizeable piles of 4/4 S3S (really 13/16--7/8") around between $6.25 and $7.50/bf depending on the manager's whim. Sore dick pricing for walnut, can't beat that.
And the shop gremlins are real. I've started habitually checking my table saw and miter saw, before the first cut and after lunch break.I've concluded that DJSapp was never DJSapp, and Not DJSapp is also not DJSapp, so that means he's telling the truth now and he was lying before.
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04-06-2021, 10:28 AM #2368
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04-06-2021, 11:09 AM #2369
Titebond Extend has an even longer working time. From memory/experience titebond working time decreases with age, so buying a big bottle might not be useful.
A RO sander will easily get you smooth, but it’ll be hard to get flat with one. Something longer is the way to go.
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04-06-2021, 11:25 AM #2370
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04-06-2021, 11:37 AM #2371
Fourth on the timesaver advice.
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04-06-2021, 04:03 PM #2372
I've made a lot of fancy furniture with complex moldings, carved legs and feet, etc that impresses people, but the hardest thing is to make something big and flat--a 30x96 cherry table top (it's in a narrow space) or a 42x96 oak front door (that one wasn't fun to hang either). Lots of hand planing with both of those projects.
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04-06-2021, 11:27 PM #2373
Ugh, I don't think there's a single cabinet shop that builds anything within 20 miles that I could even call and see if they're willing. If the University ever reopens to the public after covid, I can hit up their shop through the extension.
Gonna go down the belt sander path as a middle ground option. Will start on the backside for practice.
Sent from my Pixel 4 XL using TapatalkI've concluded that DJSapp was never DJSapp, and Not DJSapp is also not DJSapp, so that means he's telling the truth now and he was lying before.
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04-06-2021, 11:51 PM #2374
Vertical alignment. If everything is glued up in alignment you can just sand with the orbital and be done. Albeit I'm getting rough lumber and jointing/planing to get it mostly flat and more importantly get the twist out
Sent from my SM-G973U1 using TGR Forums mobile appgod created man. winchester and baseball bats made them equal - evel kenievel
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04-06-2021, 11:59 PM #2375
She's a finicky girl that jointer. Took me years to figure out how to flatten boards properly.
Sent from my SM-G973U1 using TGR Forums mobile appgod created man. winchester and baseball bats made them equal - evel kenievel
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