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Jeff Tyndall
Приєднався 5 лип 2006
FreeCAD: Parametric Geodesic Tunnel
This model is available on Github, (I corrected the corners on the bottom plates)
github.com/Jeff-Tyndall/FreeCAD/blob/main/GEO-TUN-SS-16-T2-01.FCStd
This parametric model works well, recomputes fairly quickly, because it is very simple. The tunnel itself is made from one part, the triangular panel, and the panel is made of two features. And the whole assembly is driven by two sketches.
The sketches are all driven by the spreadsheet. This model is useful to determine the size of the tunnel and size of the panels themselves, to find good yield of materials. The vertical height of a panel is the length of one line segment of the big (18 side) polygon. The details and joinery of the panels can be created separately, so as to not to overly complicate the parametric model.
Made almost entirely in PartDesign Workbench, with the exception of the Arrays from the Draft Workbench, which is by far the best array in FreeCAD. When using the Array, (I find) it is best to accept whatever it says in the initial dialogue box, then correct the Array from its properties, so you can see the correct modelling.
This model can be created with different polygon shapes and different shape panels. The triangular panels can be right angle triangles, which would make any glass cutting much simpler. An 18 sided polygon works well because it makes a nice whole number of degrees. And has a peak on top and vertical sides at the bottom.
This could also be used to make a container or a lamp shade too.
When copying and pasting bodies, parts or assemblies, remember to deselect the spreadsheet, it should all be driven by the same spreadsheet.
Thanks for watching,
If you got anything out of it, hit the thumbs up.
github.com/Jeff-Tyndall/FreeCAD/blob/main/GEO-TUN-SS-16-T2-01.FCStd
This parametric model works well, recomputes fairly quickly, because it is very simple. The tunnel itself is made from one part, the triangular panel, and the panel is made of two features. And the whole assembly is driven by two sketches.
The sketches are all driven by the spreadsheet. This model is useful to determine the size of the tunnel and size of the panels themselves, to find good yield of materials. The vertical height of a panel is the length of one line segment of the big (18 side) polygon. The details and joinery of the panels can be created separately, so as to not to overly complicate the parametric model.
Made almost entirely in PartDesign Workbench, with the exception of the Arrays from the Draft Workbench, which is by far the best array in FreeCAD. When using the Array, (I find) it is best to accept whatever it says in the initial dialogue box, then correct the Array from its properties, so you can see the correct modelling.
This model can be created with different polygon shapes and different shape panels. The triangular panels can be right angle triangles, which would make any glass cutting much simpler. An 18 sided polygon works well because it makes a nice whole number of degrees. And has a peak on top and vertical sides at the bottom.
This could also be used to make a container or a lamp shade too.
When copying and pasting bodies, parts or assemblies, remember to deselect the spreadsheet, it should all be driven by the same spreadsheet.
Thanks for watching,
If you got anything out of it, hit the thumbs up.
Переглядів: 1 608
Відео
FreeCAD: Ondol House
Переглядів 976Рік тому
The Ancient Korean Ondol Floor. The big rig of mass heating. Still made and used in Korea to this day. I believe the Ondol floor is more of a floor heating system than an entire home heating system (correct me if I'm wrong). As can be seen in ancient Korean palaces that had multiple Ondol floors each with their own burn chamber. I think there is a limit to the area of an Ondol floor, based larg...
FreeCAD: Off-Grid Carriage House with Masonry stove
Переглядів 1,1 тис.Рік тому
I like the idea of a large masonry heater in the center of the home. The stove is designed with concrete blocks, the flat slabs might have to be cast with steel wire mesh inside. The model is made almost entirely with PartDesign WB. Only the rafters, stairs and deck have the structural design. It's far easier to model walls and floors as one part, but keeping the dimensions they would be constr...
FreeCAD: Off-Grid hot water system
Переглядів 723Рік тому
This design combines rain water collection and a rocket stove. The stove has three circuits, controlled by the dampers: 1. A bypass (direct to chimney), to start the stove or or use just the stove. 2. The hot water tower with internal coil, for the shower and tub. 3. The tub ring to heat the tub, (all the internal voids could be filled with fiberglass or perlite). The water plumbing has hot and...
FreeCAD: Batch Box Rocket stove
Переглядів 7 тис.Рік тому
Rocket stoves, batch box, masonry heaters, and mass heaters are amazing things. The ability to burn wood so efficiently combined with the ability of the mass to capture and then slowly release that heat is fantastic. And I think an under utilized piece of technology. This design is a small box 11x13.5x18 box with a 6" riser. The secondary air I would do different from this model. I think routin...
FreeCAD: 3D Printed Rubber Band Racer
Переглядів 942Рік тому
download: www.thingiverse.com/thing:5618037 Rubber Band Racer. After making and breaking a couple of these, I wanted to make one which wouldn't break. And this led to being able to wind as much torque as possible into the car, the first thing to break will be the elastic. You can feel when the elastic band is reaching it's elastic limits. The four 1/4" dowels are: 230mm long, and the 1/4" axle ...
FreeCAD: Parametric sketch driven Staircase
Переглядів 4,5 тис.Рік тому
Mostly parametric, less the number of steps, still thinking about that. The driving sketch: 1. Contains only essential geometry and datum points. 2. When dragging sketches out their bodies, only link essential geometry with external geometry command. Create the rest of the sketches inside the body. 3. After the drive sketch is complete and bodies attached to it, it CANNOT be changed. The naming...
Liquid Kaleidoscope feat. Tiny Gems & Optical Glass: Alan Walker - The Spectre (Slow Instrumental)
Переглядів 2962 роки тому
Liquid Kaleidoscope feat. Tiny Gems & Optical Glass: Alan Walker - The Spectre (Slow Instrumental)
FreeCAD: Parametric Stud Wall with Window spreadsheet
Переглядів 1,4 тис.2 роки тому
Creating a parametric spreadsheet driven stud wall with window. The Stud Wall with window assembly. (I create this prior to inserting spreadsheet) 1. In PartDesign WB (or your choice), create bottom & top plates and one starter stud and one end stud. Create these bodies with the same origin and transform them into position. 2. From the Draft WB: use array command to create stud array. Ok anythi...
FreeCAD: Pipe Sweeps, Dune Buggy chassis, Part 1: Solid Frame
Переглядів 3,9 тис.2 роки тому
FreeCAD: Pipe Sweeps, Dune Buggy chassis, Part 1: Solid Frame
FreeCAD: Pipe Sweeps, Dune Buggy chassis, Part 2: Sweeps
Переглядів 3,4 тис.2 роки тому
FreeCAD Pipe Sweep is a powerful command. You can sweep just about anything. A sketch segment, multiple segments, the edge of a solid, the edge of a shape binder. You can sweep a profile on a path from another body inside another part. The dragging and dropping of sketches out of then back into a body to use the reference geometry command (which only seems to work inside an assembly) works beau...
FreeCAD: Parametric Table Driven Desk, TV stand, cabinet,
Переглядів 2,2 тис.2 роки тому
FreeCAD: Parametric Table Driven Desk, TV stand, cabinet,
FreeCAD: Thread Clearance for 3D printing
Переглядів 5 тис.2 роки тому
FreeCAD: Thread Clearance for 3D printing
Hello Jeff.. great video! I have experience with freecad and would like to design a tube chassis..but your video moves too fast for me and i don't quite understand everything that's happening. Is there anyway you would consider doing another video of something similar like a simple go cart frame and explain the process as you go to help out us less experienced freecad users?
Hi, thanks. No new videos for a little while. UA-cam videos can be slowed to .25 in the YT settings, and turn the music off. And just understand the dragging sketches from their bodies to make the association to the path and dragging them back into. That's something that doesn't get mentioned with FreeCAD much, but it's very useful.
You are doing it too fast, slow down a bit. This 8 minute video turned into be a 16 minute video instead.. Just a good tip: Slow down. Add text or narration to it. Can barely see the cursor, and what you are doing.
Hi, you can slow it down with UA-cam settings, down to .25. The most important part is how the sketch is constrained. Thanks for watching.
Can't we use the ParDesign_Mirrored tool applied on Btm-R or Mid-R relative to the longitudinal plane XZ to draw the pipes like Btm-L or Mid-L and so on ? It would be more quick and easy, no ?
By all means, mirror as much as you can. I found mirror doesn't always work that well, but if it works do it. When I made this I didn't know shapebinders can be edges (paths) too. If I was to make this model today, it would be different, a better, easier model to make.
When I’m trying to sweep the sketch for the “Vert-R-01” along that edge, it’s telling me “path must not be a null shape”. I was also getting the same thing when trying to place a coordinate system. Do you know what I’m doing wrong?
Make sure it's the active body, when placing the LCS, if it doesn't orient properly, try a different edge (of the 3) or alignment, visually you can see if the profile plane is perp. to the path. With the LCS set properly it's not necessary to drag the profile out of the body to make the association (then drag back into the body). “path must not be a null shape”, not sure. When I made this video I didn't know shapebinders can be edges (paths) that may help in spots. Don't know if this helps, I don't have my CAD PC right now.
Hello, @JeffTyndall Could I get a little help on this? I am trying to create a 10 gear model. Just exactly what you've done here plus a few wheels:) I has 27 under constrained DOF and it says my wire isn't closed.
Lose the stupid music.
I got through the first video just fine, but while dragging the sketch ("Sketch013") *out* of Vert-R-02 goes fine, I can't drag it back into there for love nor money. Any tips?
When you drag the sketch out, only make the association (coincident to the path). Do the sweep after it's moved back into the body. Hope that helps, but if you're stuck, post a screen shot on Reddit FreeCAD, and I'll take a look at it there.
@@JeffTyndall - Duly posted on reddit. Hope I was thorough enough! No rush for a reply, I worked around it using the next method you showed.
@@JeffTyndall I duly posted it on reddit, but I seem not to be cool enough for there ;-). Anyway, by forcing the receiving part to be active (Right Click -> Toggle Active Part) then the behaviour in your video is replicated. I repeated it on the Rf-R part (about 8:30 on) and it worked again. I'm mystified, but it works.
I can´t find Assemby 4 on the Start Menu... why?
Looks so similar to the carriage house my son-in-law is building. His is definitely not off grid though.
Hi Sylvia, can you e-mail me at: jeff_tyndall@hotmail.com, I e-mailed you, but I think I had an old address.
Thank you, nice visuals. Did you build it in real life?
if you choose slicing tolerance 'exclusive' in cura it fits perfect, thanks!
Underrated.
Great model. Thanks for making this video. Subbed. ❤
Thumbs up!! Also, appreciated the detail that you share in the video notes above. THANKS!!!
Are you so kind to release the freeCAD file as open source project? I'm learning freeCAD and it could be usefull work on the same file to add improvements to the batch box stove. I'll appreciate so much and I think the community too!
@@JeffTyndall Thanks for sharing your FreeCad project! I was looking for something like this. Greetings from Argentina! =)
Very nice, I like the use of individual bricks as that way you can be certain that your design can actually be built, even if the modeling is a bit tedious. But where are the mortar gaps? ;)
Good question, there should be. What I should have done is, put a chamfer on all the brick edges 1/2 the mortar thickness. The clay bricks are modelled at the nominal size 3x4x8 (actual is less 1 mortar thickness) so dimensionally it is correct. But the fire bricks are sold as exact size (and modelled) so there should a 1/16" in there. Adding that on to the fire bricks is good idea, and 1/32" chamfer all around. Linear pattern from PartDesign WB bodies have to touch, Array from Draft WB they don't. It's not that tedious, Ctrl C, V, Transform, snaps to a good size, it's not to bad. But ya, mortar joints definitely need to be taken into consideration, and should be modelled.
where is the oven and hot water
Amazing!)
Cool! I'm starting to use FreeCAD for bricks stoves modelling too (and OBS and Shotcut for making video=) Let's continue this theme :)
That's great! This video has gotten more views faster than any of my other videos, so people are definitely interested. The rocket stoves, masonry stoves, I think it's a technology most people aren't aware of and is under utilized. In Canada there is no masonry stove builders store like that kamicenter store in your video. These things will be growing in popularity. Keep up the good work, cheers.
@@JeffTyndall Thanks for the answer! "Kami" is a very powerful organization known in the country and abroad with its own production, a team of stove-makers, a training center, a creative workshop (and much more). But, in other regions (as in mine) this is a popular direction. For example, in our region there is a foundry for the production of furnace casting, which is in demand in the country and abroad. The presence of natural gas in the household reduces the demand for brick ovens, but I agree that it will exist. (In particular, as an element of aesthetics). And stove-makers mainly use Sketchup for designing stoves. (There are many oven libraries on the net). I specifically periodically looked for videos about creating models of brick ovens in FreeCAD, but there were none, except for one video of a guy from Ukraine who gave me inspiration to use FreeCAD in this matter. :) Thank you for the video! Have a good day!
Found this today... watched the video... then read your description... then watched again! Really LIKE the heated tub ring!!! Good job on naming your FreeCAD bodies and coloring elements. I LOVE FreeCAD!!! Gave your video a thumbsup and subscribed... THANKS!!!
Thanks a lot! I appreciate that. Yes FreeCAD is the best. The assemblies, once you get over a certain number of parts, naming and organizing really helps.
Very nice. Can you tell me what workbench you use to build this ?
It all PartDesign workbench.
@@JeffTyndall Thank you!!
Thank you. I am planning to build the same. Well done!
I dont have that assembly thing on freecad, what else should i use?
Bravo!. Well done. Thanks for sharing.
Для чего оно
Это для тех, кто понимает...
It is a clean burning masonry heater, with stove top.
thanks good
It's just too quick to be useful as a tutorial. I can tell you're doing neat things but there's no real way for me to tell what you're doing.
Ya, I know, more of an example than tutorial. YT can be slowed down to 25%, and kill the music. You can drag a sketch out of a body, then use external geometry command from the sketch WB to link to other parts, then drag back into the body to create a parametric part. It's clearer in the stairs video.
@@JeffTyndallUnfortunately I still can't tell what is what even at 25% playback speed
nice
thank you 😍😍😍😍😍😍
Thank you good good
How about some narrative to let the viewer know what and why things are being done. Just looking at this green seems like a whole lot of wasted redundant steps. The video seems to be targeted at the seasoned expert, not the beginner.
Thanks Jeff for the demo
Excellent work : )
ok got it.
when will you upload the second part of the video? Right now I am making polydrop trailer, and for that I need to see other part where you will build the frame from the the model you made.
The second part is on my channel, it's always been there. I was planning a 3rd part, where I 'd use boolean slice to fishmouth the pipes and detail them for fabrication. Polytrailer?, cool, I wasn't aware of these. I think a main thing with trailers is, if you are using steel, stay away from closed tubes (squares and rounds) stick to angle and channels, but if you have to use them remember to drill a hole in the bottom. Maybe you can post some of your trailer when it's done, I'd love to see it.
@@JeffTyndall what's wrong with closed tubes?
I love it! Great work! Do you have any plans to share this?
Make a video with the animation of the timing belt. Success in creative work.
Hello. I am Eugene. For my sawing machine, a precise program is very necessary, but from the video I did not see the parametric dimensions of the belt length, how can this be tied to the assembly. The video is very useful, but without numbers it makes itself useless. I subscribed and put a finger with a reminder.
Hi Eugene, It wouldn't work with fixed dimensions. For the belt to follow the pullies it has to be constrained without fixed dimensions or positions. To find the belt or band saw blade length for your machine: Leave the belt length till the last thing. When the design is done, then measure your belt length (from the sketch), find the closest length belt (or saw blade) from the catalogue. Then with your tensioner 90% retracted (or maybe it's spring or both) reposition the tensioner, re-measure the belt, and adjust until you get the length you need. This assembly might be better with all the pullies fixed, less the tensioner, and just move that around a little. I hope this helps.
Good😍😍😍😍😍
Great work. I would love to see your tutorial on creating similar works in FreeCad
Wow verry good 🤩🤩🤩🤩
Great! Thanks for sharing
nice
cool how did you do this in freecad pls share tutorials
Thanks. I like your channel, I subscribed. I'll make another video out of this model, and add a description. It's almost all part design workbench, arrays (of the joists and studs) from draft workbench, windows and doors from BIM workbench, and Assembly 4 workbench for assembly tree.
@@JeffTyndall thank you
Hi Jeff. Thanks for your videos. What's recommended clearance for 3D printing and for CNC building?
Looks good. Please make the very simple frame. But please do it slowly.
If you play it at 0.25 speed and use pause (a lot!) it's easy to follow.
Süper olmuş.
too fast
set vid to 0.25 lol, probs mute the audio tho, sounds vaguely demonic to me
Thank you I got some tips from your video. But due to my lack of experience, I can't find an answer about this question: why do you use assembly work bench when you can use a constrained sketch only in part design ?