As a manual and CNC machinist I have been waiting my whole life to hear an engineer say "you want to design something with some built in forgiveness for the fabricator"! First time hearing that in 15 years of working under engineers. Great channel!
Man, I mean this in the best possible way. You're amazing. You meet very few people with as much talent as you have, in as many different ways as you have. All of this stuff is fabrication, but you can not only fabricate in one area, you do it all, with all sorts of materials. You also design all of this stuff, which is an art in itself, and you do an amazing job at it. As if that's not enough on its own, you then have the ability to communicate with, self admittedly, simpletons like myself. In a manner that we can understand and follow along with. Thank you for making videos for us.
I'm a Horologist. To compensate for backlash reflected in the hands (dial slop). Set the hands to 00:00, start the oscillator, watch till the backlash is taken up and stop the oscillator and write down the time. Reset the dial minus the slop then restart the oscillator. The hands should synchronize when the slop is gone. It can make a big difference in the time regulation process. Sweet clock man!
You have a gift for explaining things clearly without 'shorting' us on information and without blabbering on with unnecessary information. Keep up the good work!
I know you would love to have a CNC machine, but doing it with tools all of us can obtain is fantastic! Also, the fact that you are sharing/teaching us how to replicate your work is highly commendable! Thank you for your work and sharing! Your awesome!!!
My best friend, a retired machinist, built a wooden clock. It took him several tries to get a couple of the gears just perfect, as the clock was not quite as accurate time wise as he wanted. He used oak. When it was done it a real masterpiece. I appreciate even seeing your mistakes, as that helps me not to make them on my projects. Thanks for the videos!
Jeremy, I am oh-so-impressed with your workflow, from beginning to end. Your planning, preparation & execution are exceptional & your end product clearly shows it. Just as importantly, your precise use of language ensures that your discussion is immediately understandable to a vast audience. Well done. You are a true craftsman & a gentleman -- both very rare attributes!
If you use a plywood base and precut the circumference of each circle on your bandsaw you can drive a 4d finish nail through the center of the pattern and each hole you drill will be exactly the same distance from the center and will help with the tear out.
I totally agree. I was surprised Jeremy didn't use the center hole with pin technique until he took the gear to the disk sander to achieve the final finished diameter. Also, while drilling the gear holes with the center hole/pin, set a depth stop on your drillpress so the drillbit point just exits the backside of your gear wood and slightly perforates your backing board. When the pattern side is completed, turn the gear blank over, remount it on the centering pin, and drill through from the backside for perfect holes. If you want to be even more precise when drilling from the back, you can drill into your backing board and then use an additional bit of the same size but turned upside down to locate each sequential hole.
I wanted to say thank you for getting into making videos. Your attention to detail, your statements of things to look out for, the fact that you don't criticize ignorance and take a concerted effort to ensure you help minimize it, your approach to learning and educating shows quite wonderfully that you never exclude the human condition, as well as your willingness and enthusiasm to share your knowledge, all expose the amount of experience you have and it embraces the spirit of a true artisan. Good work. I am never disappointed in the material you share.
If you start by drilling out a center hole in the gear you are making and made a jig with a pin for the center hole, you could just index the next hole to be drilled by just rotating the gear on that center hole. You would probably have to rough out the gear into a circular shape before drilling the holes, but I don't think that would be a very big deal.
I agree. Every tooth has characteristics that it shares with every other tooth, with regard to its relative position to the center of the circle. My manufacturing regimen would take advantage of that. Center hole first, and the workpiece rotated into whatever milling/drilling/cutting operation.
The advantage involute gears have is that the mating surfaces between gears have rolling contact only. The mating surfaces do not slide against each other and this eliminates wear. Metal gears have clearances just large enough for a film of lubricant to keep the teeth from touching thereby removing wear completely. You could buy just one or two milling cutters with a 20 degree pressure angle and make all your gears perfectly. By the way, nice work.
Your videos are always interesting. When I am drilling through wood I use a sacrificial piece of wood on top of the drill table, this prevents any breakout. You could even fasten them together with wood screws through the waste areas of your gear.
+Mason Ringbinder I usually do that, but when I change bits back and forth the hole gets bigger and I forget to change/move the sacrificial board. The sacrificial piece works best... this is my backup
Good Video, good background music, in the background (where it belongs). Excellent point about stepping back and taking a break when you get close to the end of cutting. There have been plenty of times when I've started to rush at the end, and that is where the errors happen. Also, the hint about being comfortable when doing a mundane task. Get relaxed, and into the zone, and it is all good. Thank you for all the many good tips.
Great videos, thanks for sharing them! You are a natural teacher, which is a rare skill for people to have. Thanks for these insightful observations that you share. I like to think I’m pretty smart and experienced, and I’m still picking up useful information from your videos, and your concise and easy to follow explanations. Keep up the good work! I hope you and your family are healthy and safe in these crazy times!
Super video but i couldn't help but think back on my boss in 1977 who walked in on me pressing U-joints back together using a vise in front of a customer. His EGO took over by saying "You can't work sitting down" & took the parts out of my hands to "Show me how it's done" by pounding the U-joint back together!! Well, once again he proved his inability to work on much! That's on you Dennis Tank in the SD area! You had so many guys working for you that were so capable! I went on to Rev Specialties that left you in the dust! & onto Race bikes & cars, DOD contracts & commercial jets!
Jeremy is great to include a few mistakes and how to correct. That really speaks to most of us who actually make mistakes. Example is taping the backside of the wood preventing tear-outs...Thanks for posting this!
Holy Smoke. I’m just a retired food guy who is making sawdust daily. Whoo! This is deep. I’ll listen a few times. Thank you for the explanation. The 3 holes for 3 rounded corners and use of a forstner bit - I never thought of that!!
Nicely done. I use a very similar process for making gears. However, I like to use PVC sheets made out of standard drain pipe. It makes for a fairly tough gear and it is very easy to drill/shape. It's also cheap, easy to get, and doesn't tear out like wood does. You can drill it, thread it, and glue together pieces to make compound parts.
Just don't let the afternoon Sun shine on it for very long especially if it is in a really nice dustproof airtight case. Or at be sure to keep all the patterns so you can make replacement gears.
I like the conclusion . Explanation on the gears just being different length levers for me the way i think of how gear sizes work i always think about how my first 10b speed bicycle worked as i had to shift gears for different terrains and speeds by maintaining my pedal speed and force for some reason that made sense to me as a child probably because i grew up poor and ha to refurbish trash bikes to ride so i spent hours building and adjusting those systems utill i really understood them well I was also one of the first in my group of freinds to Have access to the tools needed as i got a Sears Craftsman mechanics set for a Christmas present when i was 12 or 13
Thanks for sharing your knowledge. Just a thought, it might also help avoid drilling breakout if you have a waste piece of plywood underneath. This would also remove the need to cover the drill table with tape. Great work. Thanks again.
Nice idea of using the blue tape under the template; that looks a much nicer way of be able to remove these templates cleanly afterwards with no sanding/swearing required! ;)
Fantastic video! Thank you for the excellent explanation of how the gears work, I’ve never heard it explained like that before and it makes it a lot easier to understand for a non-engineer hobbyist like myself. Just subscribed and looking forward to watching more of your videos. I typically purchase my gears online, but sometimes finding the right size is frustrating. It never crossed my mind I could actually fabricate my own with regular wood tools. Thanks again!
I too fall prey to the "hurry up at the end" of my projects and of course make more mistakes that way. Lately I've been taking my time and its worth the wait and enjoy the process and end results more!!
To counteract the "fatigue" when drilling out the bottoms of the teeth, it may be better to rotate the gear around the center point. Simply securing the center point when drilling the first drill hole is sufficient.
Being a little bit absent "at the last few steps" of the day earned me three visits to the hospital already. Also thinking a band saw, a wood chisel and a drill are more of the "harmless" tools most likely didn't help either. Well, stitches to the right thumb, stitches to the left thumb and a cast on the right hand taught me differently (with about a month each time to think about it because of the bandages and cast). *If you catch yourself thinking about anything else than the current task you are trying to accomplish, stop and take a break!*
Wow, this episode brought a latent memory of a coworker (from New Mexico) about this old timer who had manufactured (by hand) a flywheel for his truck to be able get a real one. We were DoD mechanics for a naval shipyard on submarines.
that was such an inspiring video, thank you. I am building my first wooden clock and I like your method for the gears, so well explained with words and demonstration.
Thx for taking your time in making this video. You know the tape was genius. I use that method to mark finished pieces myself but I didn't apply it to a large pattern. Seeing you use that method for a complex pattern like a gear was the bomb. Also using the tape to cover the surface of your tools again genius. Thx for the idea. Keep up the good work.
Jerrmy, you never fail to amaze and impress! Its one thing to be the ever so creative salvage inventor king but when I see you leap far beyond even great wood working into technical appl8cations WITH WOOD! You just blow my "nail it together" mind! I am certain I have seen no one with as pliable a brain as you and that includes that guy who turns 10,000 piece glue up bowls. Keep it going Jeremy! You are the king of my you tube subs!
Yes, this ability to see things in new ways is highly underrated. I find the more I learn on a topic, the less flexible my brain becomes on it. Watching these videos is reminding me of more useful ways of looking at problems and solving them.
I have started making stirling engines and would like to drive some home made mechanical toys with them.Also I intednd to make some wind whirligigs so I need to make a speed reduction gearbox and some way of driving camshafts. So I started to look into making gears without a cnc machine. By luck, I have followed roughly the same thought processes in designing my gears as yourself. I enjoyed watching your methods on this video. Incidentally, I use Inkscape which has a great gear generator. The video was very well produced and photographed. Thank you
You have produced a great informative and educational video on this process. The design of gear teeth and openings on the gears that have to be drilled first is a a fantastic idea plus a super time saver. Well Done!!!
Those square gears are pretty trippy. I like your idea of using the scroll saw drill holes as part of the profile. It saves a lot of time. Also, keeping the fails in your video is good, as it makes this more approachable.
Thanks for this, your explanation is super clear and really helps with understanding how to do this efficiently and with less stress. Do you think you could do a video on pulleys and belts? How to prevent slippage, where to find the correct belts of a proper length for an application, how to best take advantage of the different shapes for a belt crossection in different devices?
+Aubreykun I talk about this in my second shredder video. The picture says “more power”...There is a whole “segment” on belts and pulleys... a standalone video might be good also I like this idea
This was incredible! I'd be down to watch the whole build process -- I couldn't even believe 18 minutes just flew by. :) You do an excellent job of explaining your process, philosophy, technique, tips, everything... it's great! Thank you!
This is a great video! It's one of the few that covers the rationality behind your actions. Very well spoken and easy to understand too. The only suggestion I have would be time-stamping the subject matter in the video in your description (just in case someone wants to skip the explainer at the beginning easily).
I love the way you work and at the same time you have a lot of tips and precautions..youre a great guy, thanks a lot for all the patients and a whole lot more of infos ❤❤❤❤
Jeremy, You're all right! I like your style. I've thought about making wooden gears for one thing or another for some time. You make it look easy :-) Thanks for the tips!
Great stuff. Interesting on many levels. Thanks for taking the time to share all the many details and efficiencies to the process of creation. It’s a wonderful listen that instills and jogs the mind for any application.
So glad I found your channel. Subscribed, liked. Great explanations of your process and reasoning. Love you style and teaching. Plus the background music is in the background. You also have a great voice to listen to. Eighteen minutes went by really quickly - didn't even notice. Thanks for taking the time and effort to produce this video.
FYI, There are small laser engravers that you could use to etch your pattern to cut out on smaller parts that only run 60 or 70 bucks. Maybe something to look into for future projects. Nice video again BTW.
I know that this is way after the fact but using a tapered spiral drill bit, (like used in countersink bits), will help to minimize tear-out on the back side of your workpiece. 😊 Grreat videos!
Very interesting, your knowledge is much more than would normally be given on these type of video. Impressed sir and I have added your channel to watch your progress. From England best wishes to you in these strange unfortune times
would LOVE to see an episode on 'changing direction' with gears - i've seen shows that have those old water wheels, and the wheel gear connects with another that turns a huge rod that powers saws and grinders and such... so how to change a 'round and round' to 'up and down', or 'round and round at 90 degrees' using gears
Mr. Jeremy, awesome as usual. no big deal; but please use your index finger to point. you have the heart of an educator; also an inventor. we love you man! very best, walt.
We’ve all left our drill bits loose ! My best one was putting a 1/16 “ drill bit upside down couldn’t understand why a brand new drill wouldn’t work 🤣🤣
Another great vid! One thing about CNC machines is that it's not about pressing a button and sipping coffee...much of the work is done in prep, building models and tool paths, etc. CNC won't save you any work or time on the first part...it does help on duplicate parts, but not much. It does help with precision and repeatability. Honestly, I'd love to see you make a killer CNC mill-type tool with recycled components! Could be a great series! Jus'sayin'...
I agree. I was particularly addressing the issue of precision. That is what makes the clock a difficult build. The rest I agree is just a different kind of work.
Thanks!! Love the channel man and ..finally a video that explains things for my idiot ass right haha. You take your time explaining and very articulate. Thanks. I used to make simple electronic clocks out of wood and now I'm thinking about doing a simple gear clock.
wow, you give really great advice. You should secure your tools before using them cutting down on vibration will make better cuts. use cinder blocks and clamps, and build a frame for each machine.
