Originally Posted by
Team Grid RC
You are asking good questions.
If we included only two mounting holes, it would be easy to accomodate the M4 holes, but trying to fit a four bolt M3 pattern and six bolt M3/m4 pattern on a motor plate was a challenge. This same pattern had to be utilized in the outer BB plate to clear the outer BB support arm.
We has some M4 button heads with 5.5mm dia in the shop and used them for the project. But somehow these are hard to source out everywhere.
It is nice to see people experiment with longer M3x10mm. We know Tekin can use the longer screws but other motor may not allow it. The M3x8 provide adequate holding power especially with four screws.
Tekin should have gone with all M3 in a 6 bolt pattern but that's their design which we make our plates to work with. Once we source out smaller dia M4 button heads we'll let you know to save time modifying the ones you have now.
We wanted a mount that had it all but, you can only physically stuff so much onto this mount.
Wait till you see the front bulkhead mount. That had it's share of challenges since it is a one piece unit that had to allow for easy diff removal at the same time.
Ron
Thanks Ron, I appreciate the post. At least I know I'm not crazy.
I did put in the 3x10mm (all 4) and 1 4x10mm *all button heads*, but like you were saying, there is the final 4x10mm hole that is way close to the spur gear, and cannot set into the inner plate (as you were saying) - Thus, it's been left out of the mix.
I can't take the credit on the 3x10 screw idea. That was all Billy.
In either case; I did have to bore out the 2 holes that were resting over the 4mm holes in the motor casing. Why are these holes (out of curiosity) not already wide enough to compliment the 4mm screw in the Grid Plate's initial design?