- Messages
- 1,755
- Reaction score
- 3,176
- Location
- Wenatchee, WA
- Arrma RC's
- 4x4-Mega
- BigRock 4x4
- Felony
- Granite
- Infraction
- Limitless
- Kraton 6s
- Outcast 4s
- Typhon 3s
- Voltage
I have the Typhon arms on my Granite but of course they snapped pretty easily after a bad landing. So while I wait for my RPM replacements to show up in the mail I found a good model of a set on Thingiverse and gave them a try and so far they seem to be holding up well.
Links for reference:
- Arrma Typhon 3S Front Right Suspension Arm
- Arrma Typhon 3S Front Left Suspension Arm
I used Amazon branded cheapo PETG that I never really use because it tends to be stringy but it's pretty hard and sturdy + it's got a tiny bit of give and so far I can't seem to snap these arms after printing with this filament. At first I had issues with printing due to the arms warping and lifting off the bed no matter what I tried. I found success once I disabled part cooling and used a raft, but I think just using a raft is all I needed. I printed with arm upright length wise with rear of the arm facing the bed for better ease of removal of the raft as well as keeping the layers perpendicular with direction of impact forces for best strength. The only thing I needed to do post print was drill the holes for the pins a little bigger and a tiny bit of shaving on the inside edges where the arm mates to the chassis to make sure the arms swung freely and didn't have friction binding.
I used inner/outer wall count of 6 and 100% infill and so far I am pretty happy with how they turned out and their performance. I will probably run with them until I get a failure and I'll stick the RPM arms in my parts box for now. If anyone is interested in my print settings I can share those if requested.
Is anyone else running printed arms?
Links for reference:
- Arrma Typhon 3S Front Right Suspension Arm
- Arrma Typhon 3S Front Left Suspension Arm
I used Amazon branded cheapo PETG that I never really use because it tends to be stringy but it's pretty hard and sturdy + it's got a tiny bit of give and so far I can't seem to snap these arms after printing with this filament. At first I had issues with printing due to the arms warping and lifting off the bed no matter what I tried. I found success once I disabled part cooling and used a raft, but I think just using a raft is all I needed. I printed with arm upright length wise with rear of the arm facing the bed for better ease of removal of the raft as well as keeping the layers perpendicular with direction of impact forces for best strength. The only thing I needed to do post print was drill the holes for the pins a little bigger and a tiny bit of shaving on the inside edges where the arm mates to the chassis to make sure the arms swung freely and didn't have friction binding.
I used inner/outer wall count of 6 and 100% infill and so far I am pretty happy with how they turned out and their performance. I will probably run with them until I get a failure and I'll stick the RPM arms in my parts box for now. If anyone is interested in my print settings I can share those if requested.
Is anyone else running printed arms?