Projects and Articles on Our Forum! | The Hobby-Machinist

Time 2021-08-31 13:20:10

Web Name: Projects and Articles on Our Forum! | The Hobby-Machinist

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JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. You are using an out of date browser. It may not display this or other websites correctly.You should upgrade or use an alternative browser. Figured I'd share my restoration project! I've always found these old machines quite cool and when a neighbour offered me a defective one for free, I couldn't say no! This is the machine as I got it, it runs but won't lower the sawblade so you have to manually push it against the work piece, which becomes quite the challenge and dangerous as heck when it's moving back and forth. The thick bars protruding on the side are from an automatic feed system that's been cut off. By pure chance... I've been working on my lathe off and on over the past several weeks or months, but I've been hesitant to start a thread documenting my progress (or lack thereof!) for fear of embarrassing myself. I'm increasingly confident that I'm going to end up with a very precise lathe rather than a very large pile of cast iron dust and tears, so I'm finally willing to share my progress. After creating a new cross-slide for my lathe some time ago, I'd already spent a lot of time scraping in the... Some of you guys may remember this little crudball I acquired back in April... I had just completed the last project, the Seneca Falls #30 resto-mod,(project of the month) when this lathe found it's way to me via a friend of a friend. My friend, who is also a tool salesman, showed me a pic of this on his phone, which came from his friend, the seller, who now is a retired tool room supervisor. He had this in his back building just taking up space and wanted the room for some of his... Perhaps you've seen this from other photos... It's a KO-Lee cutter grinder. It's a good platform and the table and all mechanisms are in excellent condition. I don't think this machine was used much in it's lifetime as there are very few signs of wear (hardly any at all really). The motor is the weak link. The bearings are going bad and vibration can be felt in the short shaft. The long shaft is OK. The seller told me about this when I got it. I'm guessing someone bumped a wheel... I picked up a Clausing variable speed drill press from a Craigslist ad. I offered the guy $200.00 and he accepted. The drill press was in decent overall condition, and had a new motor on it. I disassembled the machine and cleaned up and painted everything. Mechanically, it was in very good condition, and the only real repair work I did was to straighten a few of the handle arms. One really nice feature is the table lift, which works great on that heavy table (btw: the table doesn't... Hey Guys, so I finally got a decent tool box to hold my machining tooling... Craftsman 41inch tool chest... I used my mill to drill out holes in the front and back pieces of the frame. The holes on the bottom frame will be for leveing feet... I cut to length some 3/4in steel round stock and pre-drilled to size the ID for threading. Next the round stock was welded in place and threads cut through the whole 2.5in length... pre-fit of leveling feet... I used the same process for the... I've been putting off another project for more than year and finally committed to getting started. In order to machine the base casting for the project, I decided to make some angle plate fixtures to bolt down to my Atlas Horizontal Milling Machine. The base casting needs to be flipped several times and spun due to the limited travel 6 x 9 on my Atlas. Here is the mockup renderings I made in Fusion 360 to plan my angle plate design: The pair of finished plates installed and ready for... I started this about six months ago. I'd seen pictures of the Pine Grove (MLA-18). I decided I didn't want to spend quite that much, so after talking to Andy at Pine Grove, I had him send me the drawings and decided to try to build one out of materials I had on hand rather than use his beautiful casting kit. This is what I ended up with. Here's a video of it running. New project, a bike with a motor this time, I’ve been working on this for a while so done quite a bit so far. It’s been 20 years since I sat or worked on a bike, last one was a Triumph Bonny, they just cost too much these days so I settled for a 74 TX650 wreck and boy did it turn out to be a wreck. I have psoriatic arthritis so I’ve largely lost the use of my hands but I manage a few hours work on it every day. I’ll never be able to ride it thanks to the PsA so this will be a long term... A Straddle Knurler for the Sherline Lathe The Sherline lathe is far more capable than most people know. I have explored the limits of this amazing lathe for the last 30 years and while I’m sure of what it can do, I am not so sure of what it can’t do because I’m still building tools for it. With the proper turning tools, it will take 0.120” off the diameter in mild steel or 0.200” in aluminum in a single roughing pass, then it will take off 0.0001” accurately using just the hand wheels. It... The raw materials... Used a Dremel type diamond cut off wheel to cut the Pyrex test tube to the required length. Some fun with the rotary table. One of the first things I did was make this plate to hold some of these small parts. These adjustable parallels were just the right size to add some support. Cut these 0.047 diameter pins by taking a heavy, single cut. You lose a little stock finding the correct depth of cut, but once you find it they will come out right on... Boring on the Lathe for (New) Hobby Guys A Primer Being able to bore an accurate hole on the lathe is an important skill every hobby guy should have. We may not need to bore a precision hole all that often but when we need to, we should be able to. As we all know, that is easier said than done. I don’t know about you guys but when I started I didn’t really understand how a boring bar actually worked. I certainly didn’t know how to choose them and I didn’t know how to use them because... This is a thread about CNC Lathe I recently built. This is my first CNC machine, and obviously, I’m not a CNC guru. Being an engineer, I prefer more practical ways of making things rather than R D approach with investing plenty of time, money and energy. This is also why I use simple and robust ideas instead of diving deep into unique ones and solving the problems just created. I started with Atlas lathe bed I bought on ebay. This bed has pretty wide (1-1/2”) flat ways, so one can easily... Finally got around to taking some photos of my process as I make some of my string winding cranks. Here's one with a koa handle: These cranks feature a soft head made of low density polyethylene, an angle of 83-degrees to simulate wrist rotation, and a solid bearing in the handle. Interestingly, one of the first questions I get about them is, How do you achieve that angle? So, I'll start the description with that in mind. . . The only commercially made part is the little brass ball... Years ago my old analog multimeter passed away. I had the bright idea to keep the meter, in case I will make something useful out of it later, and threw away the rest. That “later” came a few days ago when I needed a way to test Equivalent Series Resistance (ESR) of some electrolytic capacitors that looked good but die quickly. Let’s take the story from the beginning! The need to test capacitors’ Equivalent Series Resistance (ESR) increases daily because more electrolytic capacitors are... In part-1 Ioutlined the basic needs of an high current power supply and dealt with the protection circuits needed for safe operation. In part-2 I will deal with the construction of the unit itself including PCB layout, wiring diagrams and testing. Construction can be split up into five parts: 1. Construction and testing of the PCB. 2. Making the case 3. Pass transistors and heatsinks construction. 4. Wiring and testing of the transformer, rectifier and smoothing capacitors. 5... I was greatly inspired by Hackmasters beautiful oil can clone. I decided to do a run of my own with a simpler design. It was suggested that I start a new thread here and not hijack the other thread. The plan was originally solid brass. I realized that the pump housing would add too much weight so I went with an aluminum pump housing. I was sort of emulating this original as posted by Hackmaster: Here is the base pattern: Its about 3/16 thick at the edge. I will turn it down... When I sold my Atlas 10F24, I held on to my Bison 5” 3J, as it was fairly new. Naturally I needed to make a new backing plate to mount it onto the new lathe. The old plate was 1 1/2” X 8 while the new spindle is 2 1/4” X 8, so I needed new metal to do this. I recently purchased 2 backing plates from Busy Bee Tools. They are 8” semi raw castings. They are turned to clean off the rough cast surface and the center hole is 1” ID unthreaded. First I started by reading up on what could be the... So a FlyFishing piqued my curiosity as to what the real world thermal limits are on my Invertig 221. By real world I don't mean worst-case scenario, but rather what the machine would experience in an average shop. This was rather impromptu, so I don't have video footage (yet), but the data I'm presenting is factual. Ambient temperature: Picture showing machine at thermal overload: test piece to absorb a lot of heat: Machine showed 217A on the display. Not sure why not... I have all the materials. The idea is to mount this 90 RPM drive motor on the 1/2” aluminum plate. There will be an 8” lapping disc that will register on a hub on the wheel. Magnets will hold the disc to the plate. An adjustable tilt platen will allow for precise angles to grind high speed tool, carbide blades for scraping or brazed carbide cutting tools. The discs come in grits from 250 to 2,000 grit as far as I know. There will be an off switch and a forward and reverse switch. I found the... Hi all, I think this is my first post here - been lurking around for the last year or so. I have an Enco 360 bandsaw I picked up earlier this year. Two things quickly became evident: - It would benefit from a fence, which was a nice little project to make - The gap in the table for the blade is far too large for detail work or small parts. This saw seems to be designed for grunt work light commercial use, maybe on larger sheet metal or other parts where whoops it got sucked into the... In this thread I will document my adventures in getting this mill from the dealer to up and running in my garage. I have another thread here that documents some of the early research and mills I looked at. I just bought an RF-30 clone. It was originally sold by Rutland Tool, which I remember as a local SoCal company in the 80's. I bought it at a machinery dealer in Pomona, Wheeler Machinery. Nice people, very reasonable to deal with. I was pleasantly surprised. I got the mill and a 5 Kurt... This is going to be my first CNC build and my First build log. I've decided that a build log on this forum might be a good idea for this project so the next guy to take on this project doesn't have to deal with the stupid stuff I'm already running into. This is my Masso Controller I will be using 3 Clearpath Stepper Killer servos model# CPM-SDSK-3432S-RLN They are a little over 6 long... almost 3.5 1/2 shaft with a 3/16 keyway I will be using Teknic's IPC-5 75VDC power supply But... 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