Design+Review

Nov 14th,

Hey Team,

Here is the shortened ppt for this wednesday. I've decided the presentation should breakdown as follows:

Nicole: introduction, purpose, functional objectives - 2mins (almost the same as orginal design review)

William: Rack & Pinion, double slider, crank slider - 3mins (only basic description, basic strengths and weakness)

Andrew: Cam profile (and maybe why it was scraped), Conclusion, summary of what we got from Dr. Bertram, and the design review, and what we are working on right now. - 3mins

Please look at the first and last slide of what I put here and feel free to change anything you like. Remember its not for marks and we can be under time (but not over!!!). In other news, proto-typing has been fun, I plan to bring some toys next Wednesday for a possible demo.

~W



Finalized presentation

Hey everyone,

I put the slides in order of when I received the information. I agree that the rack and pinion should go first, but I think we should discuss the talking order as a team on Wednesday and then rearrange the slides accordingly. It will take minimal time. I also didn't get duplicate slides or have the title overlap on the pc i looked at. It would be a good idea to meet and look over those details on the computer we're using before the talk.

Also, William I reopened the docx file on the pc and found the equations. So, i added those ones in.

I'm going to assume everything else is a go and send the slides to our team advisors right now.



Cheers, Ashton.

Hey Ashton,

Just noticed on the double crank slider and the rack and pinion slides the titles overlap the BALTE logo (at least on my computer). Other than that the slides look great.

On another note....**Bios!** I've uploaded the bios onto the website. However, I am still missing two (William and Mike). Please send me them, not that there is any real rush.

Andrew

Hey William,

I will fix it on a pc tomorrow morning as the docx file did not show the formulas. ugh. sorry! Ashton

Nov 1st,

Update: John Bertram will be attending the design review so I guess we better be extra sharp!

Also I have a request; I was wondering if, of the four devices, I may present mine first. My reasoning for this is the rack and pinion is, in my mind, the most simple and would thus make a good intro to the others, leading to a rise in complexity and interest as the presentation progresses. As it is now, I feel its a little anti-climactic at the end.

Lastly, Ashton My formulas did not seem to make it onto the power point. I decided I would rather use my 4 mins to discuss the formulas and resulting design rather than provide hard numbers (another reason this one should go first). I'll explain further on Weds.

Thanks everybody,

William Enns-Bray

Okay, will do! That's a good idea. Ashton.

Hey Ashton, sounds good, didn't realize it was so small. Thanks for fixing it. Also, want to add one simple slide to the end that just has a title of "Next Steps" and says "Motor Sourcing" and "Attachment System" below?

I fixed it! Here is the powerpoint presentation:



p.s. Nicole, I changed your locomotion picture of the man running, it was really really small when I put it on the slide, so I found one that was similar to it. I hope it is okay? If not, let me know and I'll change it right back! p.p.s the animations outta work now, I have them so that they only run when clicked.

Ashton

Looks good! Just a few cases of things overlapping, but I'm sure you'll catch all those when you check it in mech. Probably just conversion errors. The animations may also need to be reinserted... they wouldn't work for me. Did they work for anyone else? Mitch

Hey everyone,

I believe everything is complied and ready to go :)

I have the follow-along package, and the slides all in a pdf file. The powerpoint presentation i actually did in keynotes (the mac version of ppt). I exported it to a ppt file, but I'm not sure if it all came over correctly. I've posted it all here and will check on the mech computers to be sure everything worked fine.

If you all want to take a look at the slides pdf and give me the okay, i can send them to Dr Li and Dr. Spiewak by tomorrow morning!



Ashton

Here's the cam system stuff. It's a little weak on the analysis side as I'm having trouble figuring out torque requirements but I will try to come up with something and send it to you tomorrow. If anyone has ideas to compute the required torque based on the pressure angle give me a call tomorrow. I've being doing Finite Element Method all day so my brain is toast. I realize it is probably simple. Andrew

Here's the crank slider stuff. I wasn't sure how much to put in the description. It's a pretty simple and self explanatory design. I also designed a modified scotch-yoke mechanism that makes everything really compact, although I haven't included that in the slides. I figure we could use it to show progress? - Mike

Here's my part for the DR powerpoint. I ended up doing 2 slides for the description and 1 for the pros/cons. It just worked out better that way. Hope that's ok! Ps Ashton, the follow-along package layout looks sweet! For those who weren't at friday's lecture, Dr. Johnston said that the project supervisors should be given a copy of the presentation before hand. We decided (I think) that we will give a copy of the ppt to Dr. Li & Dr. Spiewak before our review date, and still give everyone a follow-along sheet at the actual meeting.

Oh yeah, I remember that from machine dynamics. Having the motor/rotating part in the center could be an advantage over the crank slider because it would be more compact. We would have to be careful about the horizontal oscillation of the mechanism though, and make sure it is not a significant factor. On a DR note: here are animations of the 4 designs! Note that for 3Hz and 4Hz, there are funny effects due to the frame rate of the animation. Let me know if you think I should change them at all. The format I used for all for is 2s for each frequency, starting at 1Hz and working up to 4Hz. Mitch

Hey All, I found something that's a variant of the crank-slider, called the Scotch-Yoke Mechanism. It's similar to what Andrew had in mind. Here's a video for it. It's linkage D08. Thoughts? Scotch-Yoke

Hey Ashton (and everyone else) Here is the page describing my slides. They are pretty basic, minimal words etc. Nicole

Hey team, In class Dr. Johnston mentioned how he wanted just a print out of the slides.... which kinda cuts my part out. I already started a short package which i was going to post points from your powerpoints next to the solidworks images. It's pretty much the same thing, just in a different form. I've posted it anyways for you all to take a look. I can do either one, or if you would like me to help and contribute in a different way... i'd be more that happy to take on more work!



Cheers, Ashton.