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Has anyone used either of harbor freight's benchtop drill presses (5 speed + 1/3 HP or 12 speed + 5/8 HP)? I'm looking for a cheap benchtop press for drilling plastic and sheet metal, and to possibly attach a cross slide vice to do to extremely light plastic milling.
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May 4, 2022 22:15
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| # ¿ May 7, 2024 11:51 |
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powderific posted:I picked up the 12 speed cause it'll do half the RPM of the other one which I like for drilling metal. It seems... OK. I haven't used it much yet and have limited drill press experience otherwise. Definitely can feel the cheapness in the thing and tensioning the belts was annoying. It's definitely better than clamping stuff to a table and using a hand drill! OK is probably fine for me, thanks. I'm trying to decide between it and an old similarly sized + rated craftsman from Craigslist (when new, the craftsman would have been better, but its old enough that getting replacement parts is expensive and tricky)
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May 5, 2022 15:21
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Danhenge posted:The batteries would need to be built to handle the series connection, so the the internal wiring would need to be rated for 80 volts, I think. nope, the batteries would each internally only see 40V at the terminals. voltage is a relative measurement between two points, and since the batteries are in plastic cases that don't need to be grounded, they are effectively floating voltage sources (you never need to measure the voltage of anything within the battery pack to some arbitrary ground reference point). some devices use dual batteries to get around air transport regulations on battery capacity--you can have two separate battery packs for a device (or even two "separate" battery packs within the same physical battery case, in some cases) just to keep each battery under 100 watt-hours. its kinda dumb and the regulation as written doesnt achieve the intended effect (mitigating the risk of fire by limiting the size of the energy source), but that's one of the reasons you see that. any device with two li-ion battery packs will either run them in series at double voltage, or discharge them sequentially, but never in parallel. having them in series lets you get the same maximum power as having them in parallel would (if that were feasible, but it generally isnt for technical reasons) and with better efficiency--a higher voltage battery will lose less energy to resistive losses in the system than a lower voltage battery at the same power. Slanderer fucked around with this message at 19:02 on May 10, 2022 |
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May 10, 2022 19:00
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does anyone have a guide/tutorial/video handy on sharpening new chisels? i'm not sure if there's anything special about them, bc i've only sharpened one before (and quickly + poorly)
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May 28, 2022 20:20
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IOwnCalculus posted:To add, saltwater is a disposal method for lithium ion pouch packs used by RC cars because it's conductive enough to completely drain the cells after a conventional discharge method. Ive since read that the salt water method is a myth / bad/ etc, but it was what i ended up doing several years ago after an RC plane incident led to a burning, slashed LiPo pack falling from the sky during my lunch break.
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May 28, 2022 20:23
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Can I use a benchtop belt sander to sharpen mower blades and chisels, or does that need a specialized sander or a belt grinder? I know nothing about this since I've never had room for much in my workshop, and a few google searches revealed all these DIY plans and conversion kits, so I feel like I'm going down the wrong rabbit hole. If it costs more than $150 I'll just keep badly sharpening things by hand.
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Aug 2, 2023 00:59
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Vim Fuego posted:What is this plastic piece of junk that came with the cheap soldering iron I just bought? I'm about to throw it out but I thought I should check first. It doesn't fit the set screw that holds the tip in and I can't see a use for it. Anyone know? Is it a soldering iron with a separate base? If so, is it a tool for adjusting a potentiometer inside of it to manually calibrate the temperature?
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Jan 8, 2024 20:01
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I'm gonna be fully disassembling and cleaning an old drill press, and I want to check the runout afterwards to make sure I didn't mess it up too bad. Can anyone suggest a reasonably priced dial indicator (w/ or w/o a magnetic base, preferably imperial)? Should I roll the dice with one of the counterfeit Mitutoyo's on amazon, or is there an actual low-end name brand I should go for?
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Mar 29, 2024 00:19
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deimos posted:For a drill press you're not looking for anything extremely high accuracy, just decent with good repeatability, I'd use a cheaper brand like iGaging (from a reputable vendor so you don't get fake iGaging stuff). Thanks!
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Mar 29, 2024 02:24
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I bought this one last week and I haven't used them yet but they seem fine? Just tiny threaded aluminum guys https://www.amazon.com/dp/B0CGLKJSM4 It's not visible from the pictures, but they all have holes drilled in them, so you could thread them on a string if you desired that instead at some point. They're probably all the same like you said, so just get whichever set has the sizes you want.
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Apr 2, 2024 23:05
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Does anyone have a recommendation on ball end allen wrench sets? I was looking at Wera and Wiha but both have a whole bunch of sets, and I haven't had time to see how they differ
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Apr 2, 2024 23:07
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Bob Mundon posted:Why do it yourself? I've been really happy with this one, and they have versions with 32 or 42 gauges. Haven't run across one that wasn't on here though. Because I'm a sucker for little tool and equipment cases, thats why! sharkytm posted:Bondhus. IMHO they're the gold standard. Very reasonably priced, too. I have sets of the GoldGuard, the short arm, the T-handles, and several more. Thanks, I'll take a look
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Apr 3, 2024 17:21
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| # ¿ May 7, 2024 11:51 |
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Does anyone have a source for hardware assortments? Specifically looking to get a few assortments of washers and retaining clips, but I want something better than the no-name brands on Amazon since the material quality can be random, and I don't want to order a thousand from McMaster Carr
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Apr 26, 2024 17:06
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