Update service brackets..
Excuse me for mine bad English, im trying mine best to explain, but it is difficult for me...
Hope it makes sense! I cant find the right words, and it its way difficult to talk in technical based English. So do not shoot me!
To continue:
It seems fairly simple to determinate to where you need to drill the holes!
I was looking in the manual, and used the other link (to the other ervice bracket post) to this, on a few post before.
One page 114 and 149 (and some more pages)of de metalica manual for the pro, you see an schematic. It shows pegs, "playfield lockbar support brackets/hinges mounting holes" and support brackets we, wish to mount.
Dowload link:
http://www.sternpinball.com/upload/games/metallica/pro/421/MTLAB1.PDF
The driled holes has to bee in the mid line of the 2 screws, who holds "playfield lockbar support brackets /hinge". You see the place of pegs (big circle), AND the position for the brackets! (under the apron) and the 2 screws for "playfield lockbar bracket/hinge"
In the other image mentioned in previous post, wich shows the a tron pro , with had pre drilled holes, with tnuts, AND pegs.
https://pinside.com/pinball/forum/topic/metallica-pro-pf-not-drilled-for-the-support-slide-bracket/page/2
Quoted from snaroff:No...not even close I've enclosed pics from where the pre-drilled holes were on my TRON Pro. Since the left/right side of the PF are not symmetric, you need to be careful to line them up properly.
IMG_1994.JPG 156 KB
IMG_1995.JPG 169 KB
IMG_1996.JPG 283 KB
We can see that the predrilled holes are with tnuts,are in line with the pegs holes, but are more , to the bottom side of play field. The are exactly in the middle of the 2 screws holding the playfield hinge wichh rest on the "lockbar region".
If we combine this 2 , now you EXACTLY know where to drill.
We can confirm that the schematic on page 114 of downloaded manual is correct.
Did it yesterday (measure more then twice to confirm) and dril once ,I was deadon!
I did use tnuts at the bottem, just as original.
Although I was correct, I did not like the iron next to wood, because you easily scratch the wood, when not pay attention. So I did drill a hole , and mounted some thick rubber feet under the service brackets. So the rubber feet protects mine wood. The metal of the service brackets will not touch the wood...
So case closed...