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  1. W

    getting a snug fit end tapping aluminum extrusion

    I'm end tapping 2020 (20 mm square section) aluminum extrusion with 1/4-20 threads, and I want to hold the screw like a nylok nut would, so a component held by the screw can rotate without causing any loosening of the screw. I'd like the rotation to be with slight fiction with nylon...
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    Nylon or acetal gears to replace baltic birch known to work

    I make a light duty woodworking power feeder from mostly baltic birch and hardwood. I know most potential customers are turned off by its home made appearance. It works great for the things it's designed for, and I think if it looked better and used more conventional materials, I'd sell a lot...
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    rfq-machined aluminum bars

    I'm looking to redesign a small woodworking power feeder I currently make from predominantly baltic birch plywood, powered by a cordless drill. My plan is to switch to aluminum plate and bar and extrusions to make it look at least somewhat less ridiculous. I don't know if the price I can get...
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    adding a knob to a standard extrusion between slots

    I'm working on a product,a fence for a woodworking cross cut sled, which I hope to produce in limited production (100's of units) made from off the shelf 2060 aluminum extrusion. My design incudes a telescoping extension of my own design. My question is how best to create the threads for a...
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    tapping head wanted

    I'm looking for a tapping head to tap holes in mild steel, #6 and #10. #2 Morse taper mount , or mountable on 5/8" capacity drill chuck (is that how these straight shank ones mount?). Hoping to buy with collects capable of holding #6 and #10 taps.
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    unusual sized stel bar stock

    I'm looking for a source for 11/16" (ideally .67" , but 11/16" would work) x 3/8" mild steel bar stock to be used for table saw miter gauge bars. The usual suppliers offer stock sizes by 1/8ths. I need 24" lengths. Can these be obtained or customized in quantity for "low" cost? I can get stock...
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    RFQ for grinding/alteration of T-nuts

    I'm looking for a quote for cutting flats on an existing round base Mcmaster T-nut :https://www.mcmaster.com/90596A250/ They're 1.25" diameter. I need them cut so that they'll slide, but not rotate, in a 1" wide groove. So target width of .96" with a .03" tolerance. Please quote for 200 and...
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    threads per inch in commercial threaded rod

    I'm hoping to make incremental positioning stop blocks as part of a table saw cross cut sled using a short section of threaded rod meshed into a longer piece of threaded rod, and was surprised to discover that the samples of 6-32 and M6 stainless steel threaded rods I got from from Mcmaster...
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    hardware trimming -right tool?

    I'm looking to trim 1-1/4" D. t-nuts so they won't rotate in a slot when used as a clamp. The steel is .05" thick. I need to do hundreds of these, but not thousands, and don't want to invest a lot in tooling. Only need about .01" accuracy as far as concentric and can end up a good .015"...
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    partially overlapping holes at 90 degrees

    I have a problem with some 1/2" mild steel shafts that were misdrilled with a .125" hole. The stop in what I thought was an idiot proof jig moved, and holes are off by between .03" and .08" from where they should be. The purpose allows for holes to be rebored, but the drill bit is breaking...
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    question about neccessity of retaining clip

    I have a basic engineering question about whether I can simplify construction without risking bad results on how I build my shafts with gears attached for a light duty woodworking power feeder I sell in kit form. I'm a woodworker, with a light duty self built CNC machine, but limited metal steel...
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    drilling holes on round steel shaft

    Let me preface this by stating I'm a woodworker, using a basic drill press, with limited knowledge of machining steel. I'm needing to drill several hundred .17" holes in .5" 1045 steel shaft. The holes need to be pretty accurate, as they're to align a mortise on a gear for a key to prevent...
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    DIY woodworking machinery

    Youtube has contributed to a renaissance of shop built woodworking machinery, usually from mostly wood, with people making even, somewhat terrifyingly, jointers and table saws with wood and plywood housings . I think the making of shop-built equipment had slipped into a several decades...
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    RFQ boring/reaming hex nuts

    I'm looking for quote for 100 units (1000 nuts)of the following: each hex nut to be bored and reamed to .5" ID. tolerance: +.0005" on dimension, and .005" concentricity. Raw material cost per unit is about $1.50. McMaster-Carr thin( jam) nuts $7.42 per pack of 100, 3 per unit...
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    Inexpensive kit: bearings on threaded shaft, or drilled nuts on smooth shaft?

    Let me start by stating that I'm not a machinist, but a woodworker. I'm working on a kit for a woodworking power feeder that I'd like to market in some quantity. The power feeder is not meant for a shaper, but rather for router table and lighter table saw use, and for resawing on the band saw...
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