(Topic ID: 15991)

No Fear jump ramp fix?

By hassanchop

11 years ago


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  • 25 posts
  • 11 Pinsiders participating
  • Latest reply 11 years ago by RUS7T3
  • Topic is favorited by 2 Pinsiders

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#3 11 years ago

Hi mate

I have done exactly what you need to do.

I will get some pics and write you up a fix in the next day or so
thats absolutely "bullet proof"

cheers

DR

#6 11 years ago

OK lads, here we go

you will need :

1. strip of polished stainless (I used portion of a side rail that was polished & then cut short
for a SAFECRACKER restoration)

2. a "DREMEL" type rotary tool with a "cylindrical" shaped grinding bit with a flat base

3. angle grinder with stainless cutting wheel

a. first polish the stainless portion you want to use (easier on larger piece)

b. use the angle grinder & cut a 150mm length, 30mm in width (check against your ramp)

c. smooth the edges down & make sure they are square

d. using the DREMEL rotary tool with the cylindrical bit, "square off the internal
ramp radius curves against which the stainless strip must rest against so that
the strip will fit snugly in the ramp AND flat against the base*

*mine fits so well that it "snapped" into place and doesnt need any "glue" to hold it
in place but a THIN application of silicone was going to be my choice here

*if you have some nasty bumps in the base of the ramp due to the magnets
melting it, you can grind them down slightly to better accomodate the strip

*patience is the key, working the strip AND the ramp to achieve a snug fit along
the 150mm length to BOTH SIDES of your strip, if the ramp is very irregular you
are better off grinding the strip to fit rather than taking out too much plastic

my ramp melted & sunk in the area immediately in front of the midway "one way gate"
forming a ridge parallel with the gate AND at 90 degree angle across the exist to the
wireform so the ball would get stuck there

as a result I made my "stainless strip" start at the "sunken gate ridge" and run up until just
short of the last magnet and tweaked the gate flap spring to ensure a ball not making it all
the way up & over would get a good kick out on roll back & flow back down the wire form

the attached pictures speak 1000........

result : works awesome, will NEVER break and at best I'm good for 6 "jumps" around the
accelerator loop before it beats me

good luck & careful grinding....you only get one shot

DR

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#10 11 years ago
Quoted from hassanchop:

thank you so much devil_rider!
i had a metal plaque on that area (check pics) and i removed it because the ball rarely went up to the loop. this metal plaque was thick and dont know what metal is this.
that is why i thought i needed an acrylic plaque of some sort.
maybe this one i had was too thick?
and with a strip of polished stainless like you used will work? got to try it.
tell me something, shooting the ramp in your machine, does the ball go easily up to the upper loop?

no worries mate.

your "metal plate" is the problem, both in thickness AND where it starts "mid corner" before
the "mid ramp gate"

the ball will slam into the start of the thick metal and jump up into the back of the gate
and/or rattle to a stop

the ball needs to flow around the corner & into the "back straight" BEFORE it comes into
contact with the metal strip fix, which itself must be like that described in my solution
^^^^^ above

The fix WORKS AWESOME m85.......I dont know where you are going with your suggestions???

so well in fact, that on occasion I have "back handed" the HILL CLIMB RAMP from the left flipper!

follow the 1,2,3 / a.b.c steps to the letter and you will be

DR

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