[MMike]

Ok, so 8" DH forks are becoming the norm with the new Boxxer and the 888 and all.

Does this mean now that the DH frame builders are altering the geometry of the frames accordingly?

Like say....oh I don't know.... if you had a 2002 Yeti DH-9....which is already and insanely slack bike, and you wanted to install a new fork on it, would it work? Or would the already insane head angle become even worse with a longer fork? I imagine it would......

 

[zedro]

Ok, so 8" DH forks are becoming the norm with the new Boxxer and the 888 and all.

Does this mean now that the DH frame builders are altering the geometry of the frames accordingly?

Like say....oh I don't know.... if you had a 2002 Yeti DH-9....which is already and insanely slack bike, and you wanted to install a new fork on it, would it work? Or would the already insane head angle become even worse with a longer fork? I imagine it would......

what was the stock fork on it? thats your answer....

oh have you had anytime on solidworks? i've got about a week to learn it before a job examination....already i see it kicks Catias sorry ass. I mean you can move parts within the assembly contraints in real time and even limit collisions and all that

 

[DHS]

solidworks is by far the best cad program i've seen/used. autocad is still useful, but there just seems to be never ending uses and options in solidworks. good luck getting use to it in a week....

 

[zedro]

good luck getting use to it in a week....

yeah no kidding, i'm already getting a headache

 

[zedro]

ok now i'm having fun lol. I cant believe i can make a U-joint assembly work in real time just by rotating the axle with the mouse....and its damn fluid too (thanks FireGL!). Geez Catia makes you build a kinematic model and will only move parts incrementally using sliders....so pathetic.

 

[UiUiUiUi]

solidworks is good
something similar; imho easier to use is solid edge, ever tried it?


edit on topic
if you didn't build a bike wich was as slack as the yet in the first place there is no need to design a bike around the 888.
prsonally I'd lay out the geo for a fork with an axle to crown length of about 575 to 580mm (about an inch shorter then the 888 with stock crown if i recallit correctly)

 

[zedro]

solidworks is good
something similar; imho easier to use is solid edge, ever tried it?

no havent used it...its older isnt it?

 

[UiUiUiUi]

no havent used it...its older isnt it?

nah not old, the current version is SE V16 came out this january.

its just a different program.

doesn't solid works have a good/nice CAM engine?

 

[zedro]

doesn't solid works have a good/nice CAM engine?

dont really know on that end

 

[DH biker]

Sorry that it's off topic but I got Solid Works. Any tutorials out there that teach you how to use it?

 

[zedro]

Sorry that it's off topic but I got Solid Works. Any tutorials out there that teach you how to use it?

my copy came with a tutorial built in

 

[DH biker]

my copy came with a tutorial built in

Haha yeah i just realized that when you open it it has a thing that reads "Online Tutorial" I clicked that and now I'm learning. I'll figure it out someday hopefully yes.

 

[Mike B.]

Since this thread is already off topic - Solidworks is good but not great. We often have problems with the radii of models in MasterCAM and the way it exports to iges. We also use ProE and it doesn't have the same problems but it is harder to use and learn IMO.

 

[DH biker]

With solidworks is there a way to test how much something will hold or withstand in pounds of pressure?

 

[Mike B.]

With solidworks is there a way to test how much something will hold or withstand in pounds of pressure?

not sure what exactly you're trying to do but if you go tools > mass properties, you can see the volume of the selected solid.

Some very mild analysis can be done with the built-in CosmosExpress under the Tools menu.

I assumed you were using 2004 or newer by the way.

 

[DH biker]

not sure what exactly you're trying to do but if you go tools > mass properties, you can see the volume of the selected solid.

Some very mild analysis can be done with the built-in CosmosExpress under the Tools menu.

I assumed you were using 2004 or newer by the way.

Yeah 2004.

 

[joelsman]

hey mmike
I have an 04 yeti dh9 w/ a 888 w/ risse crowns, I have the lower shock mount in the steepest head angle position and it feels good. deffinately would not leave the stock crowns on, the fork would flop to one way or the other it was soo slack.

 

[MMike]

Cool....thanks J

as for solidworks, I have been playing with it. I was trying to get my boss to replace autoCAD with it, but as it appears to be $8500 CDN per seat (they will only quote price in US money...so it's like $4000 US for the license, plus $1395/year "membership" or whatever they call it.... doesn't look like we'll be getting it)

But I've been playing mainly with the sheet metal stuff.

And strangely the importing of .DWG files doesn't work very well. They come in looking exactly right, but they are a fraction of the size they should be. So there's a scaling thing in there somewhere that I have yet to find....or a box to uncheck... or something....

But I'm making some calls for ACAD inventor tomorrow. I think it's considerably cheaper than solidworks.....

But I am really liking Solidworks though....

 

[Mike B.]

And strangely the importing of .DWG files doesn't work very well. They come in looking exactly right, but they are a fraction of the size they should be. So there's a scaling thing in there somewhere that I have yet to find....or a box to uncheck... or something....

Strange one there Mike. I've been bringing in quite a few .dwg files without a problem yet. If it helps at all, I always import to a part, not a drawing and since all my dwgs are 1:1 in inches, I just select "inches" as the import units on the second screen. One thing to check is if you're looking at the layout view once opened in SW, make sure you change the geometry scaling on the second import screen, default is 2:1 I believe. Kind of wordy but I can grab a screen cap if you're at all interested.

 

[MMike]

Yeah I've tried calculating different scale possibilities (metric vs imperial etc...) but a part that should be 36" long is coming in as .06"

 

[buildyourown]

So until yesterday, my job was 100% solidworks. I started my new job today and now this topic comes up. Funny!

Mike B: If your having problems exporting iges to mastercam, save the files as a Parametric T (not B) instead of an iges. It's supposed to use the native solidworks kernels or something like that.

Zedro: I taught myself SW in a week and got a job. You'll do fine. The only program that can hold a candle to it is ProE.

UiUiUiUi: Solidworks doesn't have a CAM. Many programs have plug-ins that run with-in solidworks and update the toolpaths as the part geometry changes. Mastercam, solidcam, solidedge and many others. Personally, it isn't worth the upgrade.

MMike, the sheetmetal module in SW is insane. Once you get good at it, your sheetmetal vendors will love you. You can export TRUE falt patterns as dxf and have them lasercut. If you do a lot of sheetmetal, you NEED to get something better that autocad


And back on topic, some companies are changing geo. The '05 DHR is supposed to have the same geo as the '04 except it's designed for and 8" fork rather than a 7" fork. My opinion, keep your old fork or buy a 7" 888

 

[zedro]

Zedro: I taught myself SW in a week and got a job. You'll do fine.

you're like the hero of this thread :love:

 

[MMike]

We get a lot of parts laser cut...but they are 3/8" and 1/2" plate. We just send the vendor 2D dwg files. We don't do much sheet metal. It just so happens that we're making two sheet metal parts just when I got my hands on solidworks.

 

[Rockland]

This thread is out of hand.

With solidworks is there a way to test how much something will hold or withstand in pounds of pressure?

What exactly are you looking to evaluate? I would suggest you try conventional methods of calculating pressure capacity before using computer/FEA type solutions.