Mission Impossible: 3D Printed Band Saw Wheel
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- Опубликовано: 1 июн 2024
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The next band saw challenge is to make probably the most complex and intimidating parts on a homemade machine, the wheel. It has to be:
- precise and a 3D printer can do that easily
- balanced which is hard to do with wood (but easy with 3D printing)
- have a slight crown on the rim to make the blade track properly. Again easy to design in with a 3D printed wheel, but difficult to do when making it from wood
- strong and that was the question I answered in this video. The 3D printed wheel is absolutely strong enough even when left under tension for an extended period.
I printed the wheel in 10 pieces - 8 wheel segments and two hubs that took almost 20 hours to print.
The mistake I made that caused the wheel to wobble was having too much clearance around the alignment pins that fit into the holes in the wheel. A better way would be to either make it a tighter fit or make it so that it can be adjusted, i.e. bolted together rather than glued.
But wobble haw no effect on performance so a small amount is perfectly fine.
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The next band saw challenge is to make probably the most complex and intimidating parts on a homemade machine, the wheel. It has to be:
- precise and a 3D printer can do that easily
- balanced which is hard to do with wood (but easy with 3D printing)
- have a slight crown on the rim to make the blade track properly. Again easy to design in with a 3D printed wheel, but difficult to do when making it from wood
- strong and that was the question I answered in this video. The 3D printed wheel is absolutely strong enough even when left under tension for an extended period.
I printed the wheel in 10 pieces - 8 wheel segments and two hubs that took almost 20 hours to print.
The mistake I made that caused the wheel to wobble was having too much clearance around the alignment pins that fit into the holes in the wheel. A better way would be to either make it a tighter fit or make it so that it can be adjusted, i.e. bolted together rather than glued.
But wobble haw no effect on performance so a small amount is perfectly fine.
You getting a 3d printer and diving into functional projects has been so cool to watch.
I assume that you’re keeping all of the wood parts so that when you’re done remaking the entire bandsaw with 3D printed parts, you’ll have all of the old parts to reassemble. Then you’ll have 2 bandsaws!!
The bandsaw of Theseus situation lol
There's obviously a lot more work we don't see in the video, but it looked so straight forward like in 10 years from now we'll be 3D printing all our tools
Finally, a bandsaw that I can bring on a plane undetected.
LMAO!!
I have had a printer for several years now and recently upgraded to the carbon with the hms. I have found myself using that printer a ton. I have always wondered how well parts for machines or machines from 3d parts would hold up and you are answering them for me. Thanks John...
I just got the X1C with the AMS, so there's plenty more to come :)
Sigh... meanwhile my bandsaw wants to kill itself when I introduce 1/4" thick piece of plywood.
A design improvement would be to make the two halves of the wheel so the quarter segments of each half don't align with one another when assembled. Also PLA is likely to yield over time. Heat from heave use of the saw will accelerate it, but just the blade tension should cause distortion in the wheel....
I don't print nicknacks and Star Wars action figures. Pretty much 100% of things I print are functional mechanical parts. Pretty much all the parts I printed in PLA years ago are now warped or have otherwise yielded to stresses placed on them. Currently black ABS+ is my go to material for mechanical parts I want to last. There is no such thing an ideal filament for all prints, but I've printed phone, stereo and GoPro mounts for my car and over a year later sitting under stress in a hot car in the American south those parts are still unchanged from the day I printed them. PLA parts I would expect to have failed even if kept in a climate controlled space.
Everything I've done so far should be seen as experimental, mostly to test the viability of using 3D printed parts in this way. So using PLA is like testing the worst case example, but printing it strong enough to withstand the forces involved. I'm sure that half of the time PLA fails under load (warps, deforms) is due to it not being structured strong enough to begin with. After all, steel will bend, warp and deform if it's undersized.
As for heat, band saw wheels don't get hot (unless there's something really wrong), and in fact are kind of self cooling with the rotating holes stirring the air. The only concern is the blade tension load and I left it tensioned for a week to test that. Not long term, but long enough to know that it should hold up well over time, especially if the tension is released regularly.
@@JohnHeisz Yes well PLA is the easiest plastic to print and strongest you don't have to pay and arm and leg for, or need a commercial printer for. I have no doubt your wheel will hold up in the short term, but it will probably run into issues months or years from now as the part slowly yields to the blade tension.
On the flip side of that PLA becomes brittle at freezing temps, but PLA's negatives mostly revolve around it's sensitively to heat heat. Yielding over time to stress at room temperature is another big issue not often discussed. How quickly it yields will (IMO) depend on heat and stress. Basically the formula is Heat + Stress + Time = warping.
The first thing I ever printed was an adapter I designed to convert old Milwaukee 18v tools to use cheap available Ryobi batteries. I favored cuz unlike some batteries they have overload protection built in.
Anyhow just the small amount of spring tension from the Ryobi battery caches over a period of several months would warp the adaptor housing to point the battery would fall out.
I was able to use the adaptors for a few years all the same by using a heat gun every few months to heat the PLA and bend and hold the plastic back in shape till it cooled.
Ultimate the parts were retired after being dropped and glued back together too many times and I decided to switch to Makita batteries. Though had I not been able to reheat and reshape the parts regularly they wouldn't have lasted 6 months.
@@THX..1138very useful, specific info, thanks 🙏
I'm shocked how well this worked! Good idea using the eccentric bushing to adjust the concentricity of the wheel!
_Mission Impossible?_ .... Nah! This is *TOP GUN* ... ❤
Have we got a new 3D printing Channel? *YEAH* ❤❤❤
With a multi material printer, you could print a tire directly on it with TPU. Just need to design the tire to be interlocking with the wheel, since TPU and PLA won't adhear.
The Bambu P1S accomplishes multimaterial with the AMS module. At the moment, TPU is not supported in the AMS. One could still interrupt printing to load TPU, but there would be multiple materials on each of hundreds of layers so this is very impractical. Also, I don’t think TPU is tough enough to be a tire in this application.
Clever! We haven't seen this before. We shared this video on our homemade tool forum last week 😎
I can’t imagine what you could achieve with unlimited funding. Always great work!
Don't think of any grants or government help, they're more concerned with taking than improving the country.
@@9and7 SHUT DOWN EVERY LIBRARY IN AMERICA TO FUND THIS GUY 🙏
@@maxinehardy9411 IT's worse. He's in Canada.
@@9and7 SHUT DOWN EVERY LIBRARY IN CANADA TO FUND THIS GUY 🙏
@@maxinehardy9411 just curious, why shut down libraries?
Great work John, I never had any doubt in this project.
Sorry I ever hassled you in the comment section. You are absolutely amazing at what you do. Thanks for all the vids
That's wheely interesting. Given how ridiculously hot it gets here, I think I'd use something other than PLA... probably with carbon fiber or glass fiber in the filament as well. 🤔
Very cool. It will be interesting to see how the wheel fairs over time in a year or three more so if you print the bottom wheel too. My only real issue with 3d printing parts is the shop starts to look like it was made by PlaySchool. The throat plate and guide bearing holders being red just looks like safety requirements, but the red wheel, and blue hub might take a bit of getting used to.
you never see them when the doors are closed.
@@KipdoesStuff And if it ever did matter, those could be re-printed in a more "serious looking" color. Just like John decided to reprint the hub to reduce the wobble, even though he said it didn't really matter to the functionality of the wheel.
Nice work, John
It’s great when an experiment comes together. well done
subbed, looking forward to more 3d printed goodies! Especially that pantorouter!
After the last episode with the vice I was inspired to make 3d printed screw press for pressing in guitar frets. Most of it has been printed, I will find out how well it works next week.
Thanks for sharing.
Another satisfying video. Thank you😊
Prototypes and first articles are for learning. Good job
Well done John! 👍👍
Thanks :)
Wandel would commit a cardinal sin if he saw that wobble in one of his machines.
Nah, he'd just keep working on it until it wobbled less than a couple thou.
Very nice. Any chance that a hot blade (due to lots of cutting) could cause the PLA wheel to warp)? Maybe ABS-GF would stand up to more abuse (PLA can also be a bit brittle). Regardless, it does show the versatility of 3D printing.
the blade doesn't get significantly hot because it cools itself down unless something goes fairly wrong.
you could add blades on the wheel to cool even more if needed but I don't think it's necessary.
Do you think there will be a point where using different filaments for different applications that there would be say a point where you could 3D print an entire bandsaw (minus the obvious like the blade)? The fact that the wheel replacement didn't have as many hitches as I expected really blew me away and I've been loving the recent content!
only limitation is the build surface. having to make larger parts in segments add joints that weaken larger parts.
@@KipdoesStuff Not only weaken the parts, but just like in this video, add points of possible misalignment and inaccuracy. Although, printing the adjoining edges with interlocking shapes like puzzle pieces would help with that.
Good video!
You’ve outdone yourself again, John 👍
You need to try some Weld-On 16 cement. It chemically fuses the parts together. To the point where parts will fail at the layer lines before the welded joint.
Hi John. Excited for your new channel. May I make a request since you will be focusing on practical 3D prints? My favourite prints are things I use every single day. So "walked" through a day in my life and made a list. The list included a lot of things I would normally use two hands for, getting in my truck and plugging in my cell phone for example, took two hands but I made a dock for my specific truck and phone. No problem was too small. Another example was I was getting glare on a clock display so I made a simple wedge to adjust the angle. Maybe you could do a day-in-your-life improvements a 3D printer could make.
John, I love the inspiration you create. Awesome job taking on this challenge. I look forward to seeing what other challenges you try to tackle with the printer. Thanks for all the content you produce, sir.
Jokingly, I thought.. "He should make it all clip together(no glue) so he would be able to say it's COMPLETELY 3d printed! :D
Well done as usual John. Will you reprint it to make it better or just let it run a while to test the durability of what you have now?
I'll leave it for now but the eventual goal is to build a whole new saw from 3D parts.
Great work John. I never thought that I'd have much use for a 3D printer, but now I use it more than my CNC. It's very satisfying to design something (I also use Freecad) and then produce it. I'm now building a bigger printer - even more satisfying.
💯👍😎Awesome John!!!!
I saw another comment saying you got an X1C? I got one last year for my bussiness. Low volume production and prototyping. I’ve REALLY been enjoying printing with ASA and ABS (other than the fumes). If you can justify the price, Polymaker PC and tough PC are absolutely bonkers strong! Engineering plate with some magigoo PC, and never had a problem with warping or adhesion.
Loving all the hybrid manufacturing tech you’re exploring!
Going to make a Mini band saw once you have all these parts lined out?
I've been really enjoying your channel! I was wondering if you'd ever given some thought to a diy pneumatic brad nailer? I'd love to see that!
Fantastic work, John! Really interesting results indeed! 😃
I already subscribed there and I'm going to watch the video later!
Stay safe there with your family! 🖖😊
So when will we see fully 3D printed bandsaw? 😁
looking forward for the 3D printed chassis ;c)
When you buy a hammer, everything around you becomes a nail. I felt it myself)
When you are creative and you buy a hammer, you get the most out of that tool, rather than leaving it hanging on the pegboard in your garage :)
@@JohnHeisz Peg board, the creative persons bane. My tools are stored on the bench top, lol.
Getting a real ship of theseus vibe
Nice.
I'm not sure 3D printing is all that different than what we get from the big manufacturers
You've significantly impacted the strength of these parts by leaving those voids and designing lightening hole. Let the infill structure do its job! You actually use less material than with supposed lightening holes
Yet it works. Weird?
It is a little funny that the 3D guy has almost the same last name as you John. Keep up the great work and have fun sir.
the next step is 3D printing the Saw Blade
Awesome work, i wish i had any sort of 3d printer/ cnc knowlage, but pu on plastic ! Come on john, great on a absorbent material with a moisture content like timber but not the ideal for thatsort of plastic
In my opinion, when a craftsman goes down the route of a 3D printer, he leaves his craftsmanship behind!
Not necessarily true. Don't you think it takes craftsmanship to design and bug out the software that all of this is printed from?
@@davidwalters8225 no. I believe that craftsmanship is determined from the physicality of making, rather than the results of a programed instruction.
You don't think there is craftsmanship in creating the software that creates (prints) the items?
@@martinlouden9005 making the part well also requires some craftsmanship, but of course less dexterity since most of the fine work is left to the machine, but the same can be said about a lot of tools.
yes you can get functional parts easily, but also about any monkey can cut and screw plywood together, so that's still fairly comparable imo.
Ok. I see your point, but can't you see mine also.
Will there be plans for this if I can print most of the saw? Because it does seem to be a fun project and maybe even cheaper than building it with wood haha
Weld 16 can be used to glue pla to pla. It is a solvent based glue. I don't think it will work on petg.
Hey John, thinking you should probably look into a SV-08 or other larger format printer to avoid having to print everything in segments. It's an inexpensive CoreXY with a 350mm build volume, state of the art and Voron-inspired, fully open source. You could easily put sides on it as it's designed for them. I'm waiting for mine to arrive.
I'd spend a bit more money and go for a 500mm rat rig, or for a 500 - 750mm cnc router with like 200mm z travel and a hotend attachement, that way you can both work wood and print
@@satibel John has a 4x4 CNC already. Also I think he said earlier he's not in a frame of mind to build a printer up from scratch. Besides, knowing him, he'd have to reinvent the wheel.
What influenced your choice to use polyurethane adhesive vs super glue on the different parts?
From all parts… the wheel…especially as segmented wheel, would have been one of the parts I would try as printed part.
I probably missed it: is it abs or pla?
He said it's PLA, but I probably would've used something like PETG-GF or ABS-GF instead
I'm glad to see a making video. I'm not much of an audio nut.
Awesome!! So who thinks "print a table saw blade!"
Well if you'd like John to end up in the hospital... you nutcases...
Oh I brought it up myself, hum, nevermind!
Well, I did make a saw blade from paper one time...
:)
@@JohnHeisz Hmmm a CD mounted on an angle grinder was a cool effect though.......
STILL NOPE!!! :D
John,ficou fantástico, que software você usa para fazer o preto?.Com esta impressora,dá para fazer a tampa da serra de bancada.e muitas outras peças. Brilhante.
Next replace the blade :D
Have you thought of doing any videos about how to use FreeCAD? I just started using it and I can't find any good tutorials on youtube. I feel like your teaching style would translate well to that kind of content.
I suggest you try out printing with ABS and using acetone to weld them together
There's a glue made for ABS, so I'd use that. And ABS prints are coming soon :)
Now let's see you print a band saw blade!🤪🤣
single use, maybe, lol
Question: Why though? Why all this plastic?
why not?
@@KipdoesStuff because it's not for me. And if this is the way the channel is going to go forward on, I'll leave. I'll be really sad. But I'll leave.
I really love John's woodworking. And of course he's welcome to post whatever he feels like. It's just.... Yeah.. well.. sad.. to me at least.
why all the plastic ? because it's a challenge.
try to make everything out of plastic to test the limits and see where it makes sense and where it doesn't.
I think if he was doing it reasonably, he would make plastic jigs to cut the wheels out of wood easily and more precisely.
the good thing about 3d printing is that you can create stuff anyone with about any degree of skill can make, and you could use a fully 3d printed bandsaw as the base to make a wooden bandsaw, and use that to cut metal parts
imo a hybrid approach almost always makes more sense, using wood for large flat areas and 3d printing for more precise parts
if I was to do the wheel, I'd 3d print the hubs and align them with a rough cut of plywood, then use the bearings to cut a perfectly aligned wheel
@@satibel I'd just wish it was on another channel. Iplasticedit or whatever.
use a wheel of a children´ bicycle as the base for the 3d-printed rim
Amazing as Super-glue is it would be funny if you made a pre-historic video to balance out this high-tech angle your taking. Build something out of rabbit glue and hand tools.
plenty of channels doing that, or at least pretending to do that, lol.
👍
How are you related to 3DOCD?
The big question is would you return to the wood wheel.
I am 949 on the new channel John.
can this plastic be recycled?
most users save all their scrap and melt them into decorative molds. If you are worried about it going to a land fill, understand this. 90% of 'recycled' material goes to land fills.
the easiest way is a toaster oven with a thermostat and melt the scraps into sheet stock.
Why
👍🏼👍🏼👍🏼👍🏼👍🏼😎
Seems like you just need a larger printer lol
$$$$$
John for your International Viewers... Pleases _NAME_ that PUadhesive... you most likely noticed
this is not used in 3D printing circles... I cannot remember in years of viewing that you did specify it
it's probably literally that, PolyUrethane adhesive.
it's like saying CA glue for CyanoAcrylate glue (aka superglue.)
@@satibel Thanks for your reply. 👍Working close to HENKEL
(worlds No. 1+- adhesive producer (afaik)... with a fabulous customer support! )
I was discouraged from _generally_ using PU for 3D printed parts...
Of course the wheel does not change significantly if you start the saw every day. Then it is loaded differently each time, and any deformation cancels out. It will creep, if you keep the load one one point for longer.
But, as stated dozens of times in his videos, he releases the tension after use so it is a moot topic.
Please stop that 3d printing mess ... it is not why i've subscribed your channel! REALLY!
Please don't get carried away with useless projects like this one. I get that you wanna try how well the 3D printer can work in certain scenarios, but it's best to use materials and techniques that make sense. This made no sense and is a rare disappointment of a video.
As one other comment said, when you buy a hammer, everything suddenly becomes a nail.
2 out of 55 comments complain, maybe you 2 are the issues.
@@KipdoesStuff You said it more nicely than I would have.
@@KipdoesStuff
"2 out of 55 comments complain, maybe you 2 are the issues."
Expressing a view that happens to be in a minority is a complaint and an issue?
I don't think it's an useless project, yes it can be done way better in wood, but he's learning what can work and what doesn't.
also I think he's having fun with the challenge of making a fully 3d printed bandsaw, at this point it's not about it being good, it's about it working.
there's a few mostly 3d printed 3d printers, they aren't as good or as cheap as making them with things that make more sense, but it's fun.
Not perfect, but you're making a great deal of progress on 3d printed parts. I'm really enjoying the series. OCD, a dimensional disorder. Very clever.