May
17
2008
Like most of us in woodworking, the shop vac is generally a rather central figure, and pulls the short straw on helping keep dust and waste collected in the workspace. The shop vac’s primary design is based around vacuuming smallish sized particulates, usually dirt into a canister, with a motor drawing air through a filter while trying to evacuate that air from the canister. Overall, the design works pretty well for most of the uses asked of it. They will even vacuum up liquids.
When I think about it, I have made it possible, directly or indirectly to be able to use a number of my power tools with my shop vac. Specifically, I have a 1/4 sheet palm sander adapted, 5 inch Random Orbital Sander, PC Saw Boss circular saw, DeWalt 621 plunge routers with a Leigh RVA1 router vacuum attachment, Hitachi chop saw with vac port in the hood, router table fence, 10 inch band saw, even the drill press, all with the ability to utilize the shop vac for dust and chip collection.
Then, there is the general clean up from all the woodworking activities that do not have the direct ability to collect dust. Drilling, jig saws, all the various hand tools and since I consider all the power tools to be efficient with shop vac DC in the 85-90% chip and dust collection range, there is all the waste that escapes that needs to be cleaned up there as well, So you see, without even discussing the high volume uses on the full sized dust collection system, The shop vac is really carrying a lot of the load here.
Woodworking materials present a different challenge to the shop vac. The woodworking tool industry has adapted many tools complete with proprietary adapters to operate with a shop vac hooked to them directly. Sanders, in my opinion, should not be operated without a vacuum attached to them or some form of DC in operation during the sanding process. The atmosphere in your shop will become very unhealthy if you don’t, to say nothing of the mess. Sanders are the generator of some of the finest particulate sizes you deal with in the shop, but the saws and routers create particles in many sizes at a relatively high volume. All dust collection is doable, but there are trade offs that occur and decrease some efficiency. Continue Reading »
May
09
2008
During the evolution of a woodworkers development… A development which never ends by the way, a person observes design, considers various methods of joinery, acquires the tools that coincide with their preferences for the various methods of work, develops a style they enjoy as they continue to grow, and accumulates a TON of hardware along the way.
Back in the 30’s, 40’s 50’s and 60’s of the last century, woodworkers commonly used containers named “MJB”, “Hills Bros”, and “Folgers” for the proper containment of “hardware”. The proper methodology for sorting the “hardware” was to sort through the top inch and a half of the can, and then up end the contents on the bench for a closer sort of the needed hardware at the bottom of the can.
A higher tech solution was to use mason jars, commonly used for canning, and errr, other handy and imaginative uses, and all you had to do was deny knowing anything as to where the canning jars were when it came time to put up preserves, and the high tech part was that you could see in advance that the “hardware” you were looking for was at the bottom of the jar.
Advances in baby food preserving had the Beech-Nut Corporation putting 13 varieties of food into glass jars, beginning in 1931, and the resourceful woodworker in fatherhood found this as a boon to “hardware” storage. The thing was you see, the integral lids could be mounted to the bottom of shelves, making use of otherwise unusable space, and the woodworker could simply look from underneath and see the needed hardware at the bottom of the jar, and not have to spread as much on the bench to sort for the needed pieces. Continue Reading »
May
03
2008
Yup. The Challenges to Squareness.
You didn’t actually think this was going to be easy did you? Well, it isn’t always, but I think the endeavor of overcoming some of these challenges can make things better, especially if you like taking good to great. Knowing what some of the issues can be, and how to overcome them when and if they arise, can help our results better match our desires.
We learned in The Constructs of Squareness article that geometrically speaking, a right angle is 90 degrees, and if it isn’t 90, then it isn’t a right angle. Everything can be represented perfectly on paper, in CAD drawings and in theory, but in building, milling, and manufacturing there are a number of factors, which can affect the quality of accuracy. Some we have to accept, some we can learn to work with, and knowing the difference is how we approach closer to fine, if fine is the goal.
Things that affect the accuracy we use to build do vary. Goals, philosophy, materials and tooling all play a part.
Goals affecting accuracy are often production oriented, cost oriented, or what the intended use of a final product is. If the Goal is to build a doghouse, it needs done quickly, and the price of materials and labor needs kept low, then, the accuracy of squareness need only be relative. If the goal is to make a jewelry box, where scale is small and appearances will be highly scrutinized, then the accuracy of squareness becomes much more important, because the philosophy behind jewelry boxes is seeing how far craftsmanship can be taken. Close tolerance fit and finish is a very large part of how this type of work will be evaluated. Continue Reading »
