Eventually we will add this all to the Botsnstuff.com wiki for safe keeping. We have already filled out the screws and standoffs.
Also a side note. I have tried to find alternative sources for the collars 5/32" ID for cheaper then VEX with no such luck. Likely to get them made any cheaper we would have to go to a source in China and get them custom made.
I ran into the same thing. It was especially bad with shaft collars being out of stock for so many weeks this past season. Alternative ones I found have a 1/64" bigger hole and cost a little more than Vex.
I did not try and source from China as shipping times and availability were of more importance.
If these are to be in a competition they should be the same color as the VEX tiles. A programmer may have gotten to brilliant idea to use a line tracker or light sensor to determine if the tile is grey or not and if it isn’t grey it wouldn’t work. It would be more likely for a programmer to do this looking for a red or blue tile (I’ve done this) but still possible that it will be done with the grey ones.
Wow, I never looked at how cheap you can get foam tiles or that the VEX field tiles went up in price. Are they still the same as before?
At the current price, the kit from VEX works out to $5.75 per tile. The Harbor Freight ones work out to $2.50 a piece, or $90 for a full field, so it is a significant savings. I had looked at the HF ones in a store, and they seem thinner and flimsier than the VEX ones, but should work fine unless you are trying to combine them with old ones. After looking on eBay and Aliexpress, it seems that these are by far the cheapest you can get.
Note: The price calculation is at the “sale” price, but it is unlikely to find them at the normal price. You can also get them cheaper with the coupons they always have, and with 20% off it comes to $2 per tile, $72 for the field.