Posts Tagged Sewing
HON Lateral File Cabinets: Rekeying
Posted by Ed in Home Ec, Machine Shop on 2020-03-03
You’d hope the original owner would tape a key inside each file cabinet before donating it to charity; ours arrived unlocked and without keys. Fortunately, eBay sellers have All The Keys and I ordered replacement keys for each cabinet.
One pair of new keys fit into their lock, but the shoulder didn’t seat properly and the key didn’t turn:
Compared with a key for the other cabinet (on the bottom), it seems the tip profile wasn’t quite the same:
Perhaps the underside of the tip hadn’t been cut? Stacking the two keys makes it even more obvious:
The eBay seller suggested the lock cores have changed over the years, as other (unaltered) keys fit current cabinet locks. Perhaps HON used fussy high-quality lock cores back in 2004 when they built these cabinets.
I gingerly filed the 125E key’s tip to match the 101E key and, after several iterations, the shoulder seated firmly in the lock and the core turned smoothly. Flushed with success, I marked the other key of the pair, filed to the mark, and it worked on the first try.
Mary doesn’t plan to store any secret fabrics in her new cabinets, but now I can declare victory and move on.
HON Lateral File: Shelf Rebuild
Posted by Ed in Home Ec, Machine Shop, Software on 2020-03-02
After sliding the HON Lateral File Cabinet shelf into place and installing the bumpers, it seemed rather loose and floppy. Comparing the situation with the other file cabinet showed it had a missing glide button in the rear and two missing slides at the front.
A replacement button emerged from the end of a Delrin rod:
The original buttons had an expanding stem, which is easy to do with an injection-molded part. I opted for simple adhesive, with enough of a blob underneath the shelf to (presumably) lock it in place forevermore:
The slides required an iterative design technique (pronounced “fumbling around”), because nothing on either side remained square / plumb / true / unbent. I hacked the first version from scrap acrylic, broke off anything that didn’t fit, and got better measurements from what remained:
With those measurements in hand, the second version used a pair of weird flat-head shoulder screws (probably from a hard drive) to anchor 3D printed angle brackets into the frame:
Those worked reasonably well, but PETG doesn’t produce a nice sliding surface, so the final version has flat-head Delrin studs in slightly tweaked brackets:
As with the buttons in the back, the original slides had expanding studs holding them in place, but glue works fine here, too:
The button isn’t quite square to the surface and the slide isn’t quite flush with the bent metal in the frame, but it’s Good Enoughâ„¢ for a shelf that won’t get lots of mileage.
For reference, the brackets should print vertically to wrap the plastic threads around the upright for better strength:
If you did it the obvious way, the upright side would break right off at the first insult from the hulking shelf, although they’re basically a solid chip of plastic, with a little infill inside the bottom slab.
While I was at it, I pulled the springs to make them a bit longer, so they touch the back of the frame when the shelf is half an inch behind the front face of the drawers. A firm push and those Delrin contact points let the shelf pop out an inch or so, with plenty of room for fingers underneath the front edge.
Some drawer slide stops near the back needed attention, too:
I cannot imagine how hard somebody slammed the drawers, because bending the stops back to a right angle required a Vise-Grip and some muttering:
Oddly, the cushiony hollow side faces away from the drawer, toward the back of the frame, because putting it forward holds the drawer front proud of the front frame face. Maybe HON cost-reduced the steel slides by making them just slightly shorter and using the same bumpers?
The drawers have begun filling up from boxes scattered around the house:
That’s the “orange” part of Mary’s collection, now with plenty of room to grow!
The OpenSCAD source code as a GitHub Gist:
HON Lateral File Cabinet Shelf Bumper Replacement
Posted by Ed in Home Ec, Machine Shop, Photography & Images on 2020-02-26
Somewhat to our surprise, our “new” HON Lateral File Cabinets include a pop-out shelf:
The trick: push the bar inward against fairly stiff spring pressure, release it suddenly, watch it pop out maybe half an inch, get some fingers under the front edge, then pull it outward:
Obviously, opening the drawer above the shelf will sweep whatever you put there onto the floor and opening the drawer below seems futile. I suppose it produced a bullet item on the features list.
Note that the topmost “drawer” is also called a “shelf”, because the front cover slides up-and-inward to reveal the contents. Should you stand eight feet tall, you might be able to look down on that shelf, but we mere mortals barely see its contents at eye level.
Dismantling the cabinets preparatory to deep cleaning revealed a pair of rubber bumpers along the rear edge of the shelf:
The slightly angled front side of the bumper (on the right) collides with a crossbar below the drawer just above it, preventing you from pulling the shelf entirely out of the cabinet.
Remove the bumper by pressing down and rearward (to the left), shoving the protruding lip into the slot with a thumb / screwdriver, then pull it upward through the slot:
The second cabinet had only one bumper, so I traced it twice onto a rubber sheet half as thick as the OEM bumper, bandsawed the shapes, and introduced them to Mr Belt Sander for cleanup:
Jammed side-by-side into the slot, they’ll serve the purpose:
As with the replacement foot on the first cabinet, they’re not the prettiest things you’ve ever seen, but Mary doesn’t expect to use the shelf and they’ll never actually bump into anything.
Even the Pixel phone’s HDR image processing has trouble dealing with dark gray objects on a black background in dim light …
HON Lateral File Cabinet Foot Repair
Posted by Ed in Home Ec, Machine Shop on 2020-02-24
We bought the best-looking (pronounced “least bashed”) pair of hulking five-drawer industrial-strength HON Brigade Lateral File Cabinets from the local ReStore outlet’s assortment for Mary’s quilting fabric stash. They came with a steep discount, barely fit inside the Forester, caused minor interior trim damage, and should organize her entire stash.
One cabinet lost a foot nut at some point in its 16 year history:
The surviving foot nuts sported two weld nuggets apiece:
The hole had the remains of one nugget at the top left and looks like a manufacturing defect to me. Of course, we’re (at least) the second owners and the usual lifetime warranty no longer applies.
I can fix that.
Bandsaw a 1×¾ inch rectangle from 3/8 inch aluminum plate to match the surviving foot nut (which is steel, but aluminum will suffice for our needs). Break the edges, clamp in the Sherline, and mill a square protrusion to match the square-ish hole:
Drill a 17/64 inch hole (looser than the nominal F drill, because I’m a sissy) for a flat-head bolt from the Drawer o’ 3/8-16 Bolts, tap, and clean up.
A trial fit showed the nugget had to go before the nut would come even close to fitting flat into the hole:
The sheet metal around the hole had absorbed at least one mighty blow pushing the entire surface inward behind the front edge. To compensate, recess the nut’s front edge and slope the sides with a Dremel wheel to let the bottom face sit level:
Another trial fit showed the need for more recess:
Another spate of grinding made it sit mostly level on the decidedly non-level surface around the hole:
The beveled corners fit inside the swaged hole corners.
Grind paint / crud off the sheet metal and roughen the surface for good epoxy griptivity:
Stand the cabinet top-side-down to make the bottom level. I wish the basement had one more course of block, but it’s not to be.
Butter the nut with JB Weld epoxy, plunk it in place, apply excess epoxy to make a fillet around the edges, apply duct tape to guy the top of the bolt level-ish, and let it cure:
After the epoxy stiffened enough to hold its position, remove the bolt, file a crude ¼ inch hex, and saw a screwdriver slot to make it match the other feet:
Not the fanciest job I’ve ever done, but it now behaves just like the other ones and it’s all good. The HON Storage Files FAQ points to a Troubleshooting Guide showing how to level the thing with a hex socket from inside the bottom drawer.
The flat heads on those bolts are basically 25 mm OD steel plates calling for fuzzy felt bumpers on the Sewing Room’s wood floors. When properly leveled, the front will be â…› inch higher than the rear. Although they suggest a pencil should roll toward the back, the top sheet metal on this one may be sufficiently warped to confuse the issue; I have a long level well suited to the task.
The original dimension doodle includes metric offsets for cutting with a ¼ inch end mill:
All in all, a satisfying day in the Basement Shop …
Needle Case Repair
Posted by Ed in Home Ec, Machine Shop on 2020-01-12
A needle case emerged from the bottom of a drawer in need of repair:
The original joint used solvent glue and I suppose I could refresh it with acetone, but two blobs of hot melt glue seemed easier and, IMO, more durable.
In any event, it’s once more ready for use:
Hooray for another zero-dollar repair, although you can see why nobody else does them these days.
Kenmore 158 Sewing Machine: Hardware Deglaring
Posted by Ed in Home Ec, Machine Shop on 2020-01-06
The matte mailing labels on the Kenmore 158’s hand hole cover plate did such a good job reducing the glare from the additional LEDs as to make the shiny hardware around the needle seem overly bright. I suggested gentle sandblasting might improve the situation without changing any surfaces in contact with the fabric.
I was given a spare presser foot to demonstrate my case:
The overhead light in the shop produces glare from the nice, shiny steel surfaces similar to what Mary sees from the sewing machine.
A few minutes applying 220 grit blast media with Tiny Sandblasterâ„¢ definitely changed its appearance:
In person, the finish is neutral gray overall, with those odd brown areas appearing only in photographs, perhaps due to the various lights in the shop. The slight texture variations seem to correspond to minor differences in the plating (?) over the steel surface. It definitely cuts down the glare:
The needle clamp and screw across the top of that picture travel up and down, so we decided to deglare them along with the “good” foot:
Another Tiny Sandblasterâ„¢ session knocked back their shine:
Those parts came out slightly less matte, perhaps due to reduced pressure in the propellant can. Seeing as how I’ve had the sandblaster for a couple of decades, I figured it’s time to use the propellant but, as expected, the in-can valve doesn’t re-seal properly, so I’ll be using compressed air the next time around.
After rinsing and blowing and rinsing and blowing the grit out of the threads, everything went back together as expected:
I’m not doing either of the plates until we have more experience with the matte hardware, but it looks pretty good to me.
Kenmore 158 Sewing Machine: Glare Reduction
Posted by Ed in Machine Shop on 2019-12-26
The additional LEDs around the needle on (one of) Mary’s Kenmore Model 158 sewing machines provide plenty of light for normal sewing, but produced too much glare on the polished steel “hand hole cover plate” (their nomenclature) for small-scale work. A matte surface seemed in order, which came from some translucent mailing labels left over from our Christmas card effort:
Mailing labels probably aren’t a permanent solution, but they certainly solved the problem without delay. We’re loathe to etch the steel, as increasing the surface roughness definitely isn’t what you want, nor blacken it, for obvious reasons.
Too much light is definitely better than too little, though.
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