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Re: Of possible interest to people with 3D printers and band saws!
Well, seems to fit OK.? Could be a little wider and thicker.? I think the reason for the discrepancy is I measured the old tyre while it was on the wheel.? I stretched it off the wheel to use the calipers ... bit obvious in retrospect!
Pierre-Raymond, here's a view of the workings of the saw.? The blade is not fitted in the photos. I did think around several ideas for making tyres.? If your printer isn't big enough to fit the whole tyre on the bed, this might be the way to go.? It's inspired by one of John's posts a while back (least I think it was John, if not please accept my apologies).? Part are fixed with super glue and I can't separate them with pensioner power. |
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Re: Of possible interest to people with 3D printers and band saws!
Pierre. I will step in for Julian if OK. Basically it is a tyre or in the US called "tire", normally moulded of some rubber compound. It fits on the circumference of the driver and driven wheels.? Very similar principle to a car tyre, (a) assist in traction between the saw blade and the spoked wheels, (b) slightly radiused on the outer side to assist in keeping the blade from walking off the wheels. Normally the top wheel can also be fine tuned by tipping front to back, again to stop the blade from walking off the wheel. Cheers On Mon, 4 Mar 2024 at 15:14, Pierre-Raymond Rondelle via <pierreraymondrondelle=[email protected]> wrote:
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John |
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Re: Of possible interest to people with 3D printers and band saws!
开云体育Hi, What is this printed part usage on a band saw ? A more general
picture would be useful. Thks On 04.03.24 03:48, mike allen via
groups.io wrote:
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Re: Of possible interest to people with 3D printers and band saws!
Mike I will measure the diameter?of the wheels and let you know. FWI, I have to buy special but welded ( not off the shelf) blades 1555 mm , normal size I believe for a typical Harbour Freight is 1400 mm.? My machine is old, I bought it at a bargain price LOL Gr!!!!!!!!!! at a flea market, certainly they saw" PUN" me coming, but have done OK for 12 years. Especially when sawing up frozen meat. LOL Have a good week John On Mon, 4 Mar 2024 at 06:25, mike allen <animal@...> wrote:
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John |
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Re: Of possible interest to people with 3D printers and band saws!
Julian
What drafting programme did you use to create the shape in the photo, guessing "9 curves" ? after measuring the circumference of the wheels. Also did you have to deduct the overall length of the 3D printed tire to grip the wheel/pulley ? A very interesting project, I also need to "fix" my bandsaw, it has been a back burner job for a few years? and finding spares for my? old Taiwan machine is impossible. Thanks again for sharing. -- John |
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Re: Of possible interest to people with 3D printers and band saws!
Excellent Julian, thanks for sharing.?
Necessity is the mother of invention. 3D printers have allowed me more versatility in the way to approach the "fix it" or "repair situations" of everyday living. My wife and I both have mobile phones, so I have recently designed and 3D printed a double docking station "wall mounted" for recharging, Hope of interest -- John |
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Re: Of possible interest to people with 3D printers and band saws!
开云体育Man , that's a killer idea . What size tires are the ones ya printed ? I need a set for my 14" saw & another larger saw . I don't know if I could even do a 14 one on my printer though , but my gears are turning now . thanks animal On 3/3/24 1:57 PM, Julian wrote:
When I acquired my band saw a few years back it was in bad need of new tyres but the cost of two "big rubber bands" exceeded what I payed for the saw, so I adopted my usual stance on such matters and just ignored it. |
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Of possible interest to people with 3D printers and band saws!
When I acquired my band saw a few years back it was in bad need of new tyres but the cost of two "big rubber bands" exceeded what I payed for the saw, so I adopted my usual stance on such matters and just ignored it.
Now with the new printer and its large print bed I have a nice TPU tyre for around ?1.50!? ?And people ask "what on earth do you need a 3D printer for?" Removed from the print bed and stretched a little the serpentine shape is unnoticeable.? I'll have a go at fitting it next week and post the results. |
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Re: #3D Fractal vice.
#3D
开云体育Well yes and no.? You’d want to take the STL files and expand them by about 3% to 5% to deal with shrinkage.? Next using the lost PLA process you’d have to cover them in a silica plaster mix and build that up and then heat that to melt out the PLA.? Finally pour in the metal.? Then wash away that slica plaster. ? What you are left with is theoretically an image of the PLA print.?? Most of the youtube videos show that these aren’t the prettiest parts by any stretch sometimes with a few bubbles and flaws.? ? Using them as patterns instead is a whole different story.? Youi need draft or taper, room for shrinkage and the sides that get pulled have to be super smooth or it will pull the sand with it.? That means body filler, sanding, primer filler, and paint.? A lot of work. ? I’ve attached a number of photos that show the process to the point of pulling the pattern from the sand.? It’s a lot of work. ? John Dammeyer ? From: [email protected] [mailto:[email protected]] On Behalf Of mike allen
Sent: February 27, 2024 9:00 PM To: [email protected] Subject: Re: [digitalhobbyist] #3D Fractal vice. ? Next question , if a guy'gal wanted to cast these parts would these printed parts be ok to use for molds ? thanks animal On 2/27/24 8:41 PM, John Lindo wrote:
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#3D carousel
#3D
Final photos of the Carousel small parts holder.
Add extra from the original downloaded STL files, 2 x wall mounting French cleats, lids for each size trays and label holders for each tray. C -- John |
John Lindo
