1st Gen Lunchtable Thread - General Discussion

OMG - Have we turned into another m u d?

I remember seeing a MB forum back in 2008 where the moderator would correct a posters grammar and repost with an [sic] to let everybody know the original post had an error.

 

@time623

So what I did yesterday as far as adding slots and shit was indeed the correct method for working on a 3D item.





Added that "slot" underneath so it centers over the crossmember in my RC.

The large notches are for clearing the shock towers.

Here's the battery held by double sided tape where the new tray will go.

 

See, 3D isn't scary

 

Never was

I thought by adding a sketch on a different plane and extruding it, was a band aid to the real solution

Apparently, that is the appropriate way to do it so I had figured it out already by accident

Someone just confirmed it for me

But he also shared with me adding the fillet so that it adds strength from the interior floor to the interior wall

Just wanted to make a setup with everything I needed so Zane didn't have to "fix" stuff for me

It's better I do it right the first time around

 

I'll just have to learn later down the road about different plastics, layers for strength, and more

I won't 3D print, but it'll help in design work if I understand more

 

@time623

If you decide to dabble in Fusion for whatever reason, you just need to ensure one thing when dealing in 3D

Just make sure all extruded sketches appear on one body

The moment your model shows two bodies, then Fusion will recognize the item as two separate pieces instead of one

 

I was trained to always design that way.
Basically start with a block of material, and then cut away at it using extrusion-cuts until you get what you want.
I believe that workflow was the easiest to convert into a CAM program with SW CAM, not that I ever personally worked on the CNC programming side.

3D print models probably don't care, since I imagine they're probably exported as a .STEP or some other filetype that doesn't carry all the metadata of how the model got to the final model, it just exports the final design. Just guessing thats how it works though, don't have one myself yet

I bet injection molding designs have an entirely different design flow which works best though, never done that before.

 

I have no design training at all so there are times where specific terminology escapes me.

So when I was drawing and extruding from a solid piece, I thought I was "hacking" my work and thought other commands existed

But nope, apparently that's how it's done! I didn't even notice the option to CUT. It appeared when I entered a negative value for my extrude. I take it this is the same for Solidworks then?

I did send Zane a STEP file. I don't exactly know what 3D printers use so I exported the file type I see mentioned most often.

 

Yeah more or less. SW splits it the two distinct features, Extrude-Boss and Extrude-Cut, one for adding material and one for removing. Both are applied to a sketch on either a specific plane, or on a surface. Never tried throwing a negative value in the Boss feature though, it might convert it to a cut

I learned that workflow from my first job at a small business building industrial equipment in house. The machine shop was about 10 steps from my desk. My boss did all the CAM programming, and taught me the workflow to use so I imagine that's just easiest for CNC work. Keeping both of our design trees laid out in a similar way made future changes muuuch easier to existing parts as well.
But at my current job, the machine shop is half the globe away from me and most of our lead designers. I've found without the close relationship between designers and the machine shop, a ton of our models have wound up pretty hacked together..
As long as you get the final model as you like it, it will work. But, when you have to decipher someone elses workflow to make a change to one tiny little features dimension, a hacked together sloppy workflow is a nightmare to deal with.

Morale of that story, unless you start working on a big team, it probably doesn't matter how hacked together the model is since only you have to deal with it

 

Be curious what you find with boss extrude and negative value.

In Fusion, there's a small toolbox that appears when you select an item to extrude. At the same time, an arrow appears that you can manually drag along with a small box displaying the distance.

I normally type my figures in, as it's allowed to do so within the small window as well as the toolbox itself.

So when I changed it to a negative, an option at the very bottom of the toolbox changed to CUT automatically which tells ya cut and extrude are in the same function basically.

Since you're well-versed in CAD, you'll easily be able to figure out CAM if you decide to get yourself a CNC table (wood, laser, plasma) and even milling.

With CAM, you'll just have to figure out and write your own rules for best quality.

 

I do wonder though, for those that do machining (at the hobbyist level) if they're creating separate post processing for different tools, or if Fusion can separate run files to allow for tool changes

Kind of want to buy a budget-friendly CNC mill to work on small aluminum parts

 

It’s hard to say what it would be worth. I’m not that keyed into the market for those.

 

Not sure what vehicle you're referring to.

If the GX? Normally a bit more than 4th Gen 4R's where I'm at mainly cause many of them are unmolested.

I only tagged you as an option since what you need first and foremost, is reliability.

 

Yes the GX. It seems like their prices are all over the place.

 

The DC10 tanker was putting in work today in LA. I love these things.

 

Jus ask that Goosie goober, he’s been a machinist for 20 years ya know?!

 

I'm not ready for that smoke

 

Many vehicles are.

It just takes time weeding out what all you should expect to do yourself, what all has been done, and if the condition as it sits, is worth it to ya.

You expressed a lot of interest in 100 series, but I think more because it's a "Land Cruiser"

But based on your needs over the last year, really seemed like you just need - reliability, space (SUV), and want 4x4

Myself and a few others suggested a 4R already

You still borrowing that 4R?