Xray XB4 thread
#6586
Tech Addict
iTrader: (12)
I have a '14 car, the screw holes in the mounts are .020" different to the hinge pin inserts holes, like you guys are seeing on the '15. However I measured the angle between the flat surface of the RR block to the flattest part of the a arm with the same insets on both sides and the angles of the arms are the same! Looks to me like Xray knows what they're doing and your toe angles are still correct even though the mounting of the plate is asymmetrical to the insert holes.
The gearbox itself on the '15 is new I believe..... If the '14 brace had the asymmetrical plate and the new one mimics it, maybe it is something about the new gearbox..........it looks like RCgod has access to some good measuring equipment, I'd like to hear his explanation of that print out sheet.
jmcelroy42, are the mounting screw holes on the back of the gearbox equal distances in from the edges of the gearbox? And does the gearbox appear to be mounted in the center of the chassis tab?
#6587
Tech Elite
iTrader: (33)
The printout shows the actual inner hinge pin angles in relation to the centerline of the chassis. According to xray these should be 3 degrees per side with the 0 inserts. As you can see they are 2.5 and 3.5
There are 2 holes in the bottom of the chassis which I used to create the alignment. I leveled the alignment on the bottom of the chassis. Our CMM is repeatable within .0002" of an inch. I've been programming cmms for 20 years. Trust me when I say the rear hinge pins are off. Xray can say whatever they want. When assembled the rear suspension isn't right. But somehow the right response of "sorry we made a mistake, we will take care of all of our customers" changed to some crap about legendary attention to detail. Probably about the time they calculated how much money it would cost to make it right.
There are 2 holes in the bottom of the chassis which I used to create the alignment. I leveled the alignment on the bottom of the chassis. Our CMM is repeatable within .0002" of an inch. I've been programming cmms for 20 years. Trust me when I say the rear hinge pins are off. Xray can say whatever they want. When assembled the rear suspension isn't right. But somehow the right response of "sorry we made a mistake, we will take care of all of our customers" changed to some crap about legendary attention to detail. Probably about the time they calculated how much money it would cost to make it right.
#6588
Tech Addict
iTrader: (12)
The printout shows the actual inner hinge pin angles in relation to the centerline of the chassis. According to xray these should be 3 degrees per side with the 0 inserts. As you can see they are 2.5 and 3.5
There are 2 holes in the bottom of the chassis which I used to create the alignment. I leveled the alignment on the bottom of the chassis. Our CMM is repeatable within .0002" of an inch. I've been programming cmms for 20 years. Trust me when I say the rear hinge pins are off. Xray can say whatever they want. When assembled the rear suspension isn't right. But somehow the right response of "sorry we made a mistake, we will take care of all of our customers" changed to some crap about legendary attention to detail. Probably about the time they calculated how much money it would cost to make it right.
There are 2 holes in the bottom of the chassis which I used to create the alignment. I leveled the alignment on the bottom of the chassis. Our CMM is repeatable within .0002" of an inch. I've been programming cmms for 20 years. Trust me when I say the rear hinge pins are off. Xray can say whatever they want. When assembled the rear suspension isn't right. But somehow the right response of "sorry we made a mistake, we will take care of all of our customers" changed to some crap about legendary attention to detail. Probably about the time they calculated how much money it would cost to make it right.
#6589
Tech Champion
iTrader: (14)
The printout shows the actual inner hinge pin angles in relation to the centerline of the chassis. According to xray these should be 3 degrees per side with the 0 inserts. As you can see they are 2.5 and 3.5
There are 2 holes in the bottom of the chassis which I used to create the alignment. I leveled the alignment on the bottom of the chassis. Our CMM is repeatable within .0002" of an inch. I've been programming cmms for 20 years. Trust me when I say the rear hinge pins are off. Xray can say whatever they want. When assembled the rear suspension isn't right. But somehow the right response of "sorry we made a mistake, we will take care of all of our customers" changed to some crap about legendary attention to detail. Probably about the time they calculated how much money it would cost to make it right.
There are 2 holes in the bottom of the chassis which I used to create the alignment. I leveled the alignment on the bottom of the chassis. Our CMM is repeatable within .0002" of an inch. I've been programming cmms for 20 years. Trust me when I say the rear hinge pins are off. Xray can say whatever they want. When assembled the rear suspension isn't right. But somehow the right response of "sorry we made a mistake, we will take care of all of our customers" changed to some crap about legendary attention to detail. Probably about the time they calculated how much money it would cost to make it right.
#6590
I believe the response is real. This is the email response I received directly from XRAY.
Thank you for your email and your interest in XRAY products. The alu suspension blocks have asymmetrical holes made on purpose to offset the small differences in the composite bulkhead after they cool down after moulding. As such, the suspension blocks are all correct and after assembly everything is correct.
When composite parts are assembled with others parts using screws, they tend to bend in the direction of the screws. XRAY's legendary attention to the detail in this case ensures that all composite parts are measured after assembly and the tolerances of the moulds are adjusted to offset this kind of effect to ensure the geometry is correct.
If we can help you in any other way, please let us know. We will be more than happy to assist you or help you out.
XRAY MODEL RACING CARS
Thank you for your email and your interest in XRAY products. The alu suspension blocks have asymmetrical holes made on purpose to offset the small differences in the composite bulkhead after they cool down after moulding. As such, the suspension blocks are all correct and after assembly everything is correct.
When composite parts are assembled with others parts using screws, they tend to bend in the direction of the screws. XRAY's legendary attention to the detail in this case ensures that all composite parts are measured after assembly and the tolerances of the moulds are adjusted to offset this kind of effect to ensure the geometry is correct.
If we can help you in any other way, please let us know. We will be more than happy to assist you or help you out.
XRAY MODEL RACING CARS
#6591
Tech Elite
iTrader: (33)
This is the email I received from Xray last night:
Dear Kevin,
Thank you for your email and your interest in XRAY products. The alu suspension blocks have asymmetrical holes made on purpose to offset the small differences in the composite bulkhead after they cool down after moulding. As such, the suspension blocks are all correct and after assembly everything is correct.
When composite parts are assembled with others parts using screws, they tend to bend in the direction of the screws. XRAY's legendary attention to the detail in this case ensures that all composite parts are measured after assembly and the tolerances of the moulds are adjusted to offset this kind of effect to ensure the geometry is correct.
If we can help you in any other way, please let us know. We will be more than happy to assist you or help you out.
XRAY MODEL RACING
Dear Kevin,
Thank you for your email and your interest in XRAY products. The alu suspension blocks have asymmetrical holes made on purpose to offset the small differences in the composite bulkhead after they cool down after moulding. As such, the suspension blocks are all correct and after assembly everything is correct.
When composite parts are assembled with others parts using screws, they tend to bend in the direction of the screws. XRAY's legendary attention to the detail in this case ensures that all composite parts are measured after assembly and the tolerances of the moulds are adjusted to offset this kind of effect to ensure the geometry is correct.
If we can help you in any other way, please let us know. We will be more than happy to assist you or help you out.
XRAY MODEL RACING
#6592
I would imagine measuring at the inner hinge pins would give the most accurate results no? When you measure at axles you will run into a little bit of play in the suspension. Given zero play, measuring at the axles should in theory give the same result.
#6593
Tech Elite
iTrader: (33)
Yes but because the surface area of the ouside flat on the hex is so small it will not be very accurate. Same goes for checking the axle stubs. Probably the most accurate would be checking the angle of the outer hinge pin locations in relation to the chassis cl. I'll do that tonight and also give the location of the axles in relation to the farthest rearward balance hole on the chassis to show how much different the wheelbase is on each side.
#6595
R/C Tech Elite Member
iTrader: (1)
The printout shows the actual inner hinge pin angles in relation to the centerline of the chassis. According to xray these should be 3 degrees per side with the 0 inserts. As you can see they are 2.5 and 3.5
There are 2 holes in the bottom of the chassis which I used to create the alignment. I leveled the alignment on the bottom of the chassis. Our CMM is repeatable within .0002" of an inch. I've been programming cmms for 20 years. Trust me when I say the rear hinge pins are off. Xray can say whatever they want. When assembled the rear suspension isn't right. But somehow the right response of "sorry we made a mistake, we will take care of all of our customers" changed to some crap about legendary attention to detail. Probably about the time they calculated how much money it would cost to make it right.
There are 2 holes in the bottom of the chassis which I used to create the alignment. I leveled the alignment on the bottom of the chassis. Our CMM is repeatable within .0002" of an inch. I've been programming cmms for 20 years. Trust me when I say the rear hinge pins are off. Xray can say whatever they want. When assembled the rear suspension isn't right. But somehow the right response of "sorry we made a mistake, we will take care of all of our customers" changed to some crap about legendary attention to detail. Probably about the time they calculated how much money it would cost to make it right.
Haha, lol'd at this. Somewhere in Slovakia there's an actuary nodding his head.
#6596
Tech Champion
iTrader: (14)
Quite a few vehicles use the composition of inner pins plus the outer hub angles to get the total rear toe in angles. Ironically I have noticed on my set up station that most vehicles are about .5 degree difference between sides. I honestly never checked this on my xray. Mine is a 14 and I am going to see if that differences I normally see on my other non Xray cars are there. I do have the hudy setup station.
#6598
Tech Elite
iTrader: (33)
Quite a few vehicles use the composition of inner pins plus the outer hub angles to get the total rear toe in angles. Ironically I have noticed on my set up station that most vehicles are about .5 degree difference between sides. I honestly never checked this on my xray. Mine is a 14 and I am going to see if that differences I normally see on my other non Xray cars are there. I do have the hudy setup station.