I just looked in the new material table, and I don't see any motec M800 (we use it also).

Mr. Riley,
I should have asked this earlier, but I notice that in the suspension there is an assembly section for rodends. I have been including rodends in individual assemblies; do I need to change that?

Also, "suspension Mechanism," does that refer to the Anti-roll bars?

Thanks,
Pierre-Olivier

Mr. Riley,

Under the electrical system what is meant by a Battery Brake Light?

~George

Mr Riley,

Thanks for being so responsive on the forum so far, helps a lot. On a more general note, will the Access application be usable by British teams for the Formula Student event too? I noticed in the video it requires a PIN, will we be provided with one?

Thanks

Hi Mr. Riley,

Looking at the electronics process section I've noticed that the cost of shrinking heat shrink tubing ('Shrink Tube') is $0.15/cm. Considering taping the wire bundle ('Taping Wire Bundle') is $0.04/m, would it not be reasonable to cost heatshrinking per meter as well?

Also, will you be adding velcro to the materials list? Is an AIR required?

Thanks,
Nicholas Burgwin.

Mr. Riley

Could you explain the interaction between parts, assemblies, and systems? From what I understand the assemblies are all specified in Appendix C-3. However, I get confused when brake fluid, bulbs, or lug nuts are considered seperate assemblies. How do I seperate m,p,f,t costs between parts and assemblies? I know this is often situation specific but could I have some guidelines?

Thanks

Ben: Sorry about that, I didn't realize we were waiting on a response back from Motec. I confirmed it today and it will be added at $1650.

Pierre-Olivier: When you say rod ends are an assembly do you mean in the BOM tab of the Excel file or Appendix C-3. That is a left over from the old rules that I need to fix. Rod Ends should be included wherever you feel is convenient which I would expect would be within the part or assembly that uses them.

George: Which line item are you asking about? I didn't see it when I checked the latest tables. We've added so many I can't remember it.

Abhi Mittal: Yes, the application will be usable for the overseas events. You will receive an authentication number from your competition organizing group. The US organizers are currently putting together the information for the overseas events but we're expecting one set of rules for everyone.

Burg: I believe the wire bundle taping is a typo and should be $.04/cm. Obviously there isn't a ratio of 375 between heat shrink tubing and taping the wire bundle. I will review whether we want to fix this.

Tim: C3 doesn't speceficy all the assemblies, but rather it tells you under which system to include common assemblies. The actual break down of the assemblies/parts is up to you. However, we want the general makeup to be as shown in C3 because the judges divide up the workload so the wheel & tire judge will be expecting to see wheel bearings, for example so if he/she doesn't you might get a penalty for "forgetting" the wheel bearings.

I hope this helps. So to answer your question a bit more, brake fluid doesn't need to be it's own assembly but it should be in the brake section.

Thank you. I appreciate all your work on our behalf.

Just for clarification, are we allowed to add rows to the BOM? I know it says not to modify the format but if there are items not listed or covered by subassemblies can we add lines?

Mr. Riley,

Under the fasteners section of the process table the unit of measure is "unit", this means per fastener right?

Thanks for all your help,
George

Are we considering silver soldering and brazing to be the same process as welding?

Mr. Riley,

When should we expect to have the software available to us? We are registered for Virginia, and the deadline is quickly approaching. Should we expect to submit only a hard copy of the report without using the provided software?

Thank you,

Shane Viccary

Shane, the answer I got for that one was that it probably won't be ready and we need to make our own spread sheets and combine them. We also are required to send in the hard copy for VIR. I'm just using the example spreadsheet that's on the website and working from there. I hope you've got it mostly done.

Questions:

(1) Setup - Install Remove - Do we need to use this process for tube preps
(2) Welding - Do we need setup or assembly process for putting the parts on the jig?
(3) Tube Weld, Cuts, etc. - Are we using process multipliers or tooling for those?
(4) Assembly for Tires to Wheels - Should we just use Assembly, Interference?

Open question to anyone:

How are you guys doing your assembly levels? The spreadsheet that's for download that I think alot of teams are using for a template shows assemblies on the BOM that are very very specific, like Rear A Arms, for instance. I know that I've got suspension broken into about two assemblies with A Arms, dampers, springs, pullrods etc. as parts in front and rear corner assemblies. Does anyone know if that's acceptable, either from the rules cmte or by everyone doing something similar? It just seems kind of silly to me to have an assembly that is a a arm, that has a correspnding part file, and goes into some other assembly, I'd assume.

Thanks,

David,

From reading above, I believe that as long as you keep the required items in the right major group (e.g. Suspension, Wheels and Tires, Brakes...) that you are free to organize them as you see fit. (Mr. Riley, please correct me if I'm wrong) Personally, I have front and rear assemblies set up as their own entries in the BOM. This means that I had to split some of the entries into two (like Pushrods/Pullrods to "Front Pullrods" and "Rear Pushrods")



Also, Mr. Riley,
I haven't received any updates on the Weld rims... Will they be on the list by the 9th? Thanks!

Mr. Riley,

In the plumbing table, all of the hoses have Size1 and Size2 entries under the comments field, but the formula only includes the Size1 parameter. I assume this is incorrect, since the formula that is there currently wouldn't take the length of the hose into account for costing. What is the correct formula for this? Thanks.

Adam C.

Also, this has been brought up previously in the thread, but I'm not 100% clear on this. I know that the cost for a heat exchanger is based on core volume, but does that cost only cover the core itself? In other words, do end tanks need to be calculated separately from the core or are they included in that cost? Thanks.

David,

I did something similar, I have the A Arms broken down into front and rear assemblies, under each assembly then i have the top A Arm and the Bottom A Arm.

Mr. Riley,

What was the final cutoff date for AIR forms? We are doing a student built electronic shifter using a drill motor and gear reducer which is not on the table. Is this something we will need to just have an addendum for due to the timing? Is there any updates expected or was the March 03 update the final one?

Thank You,