RC Tank Warfare community hobby forum

Lord Haw-Haw wrote:Nice fix there.

If you continue to have issue I would try deleting the undercuts, would just keep the arm width the same a the pivot ends, the undercuts look to be a stress risers. Without FEA analysis, minimal material design is difficult. Try using fillets/radius where the elements interface. Of course this could centralise the bending moment at the stub axle and that being threaded... Experimentation arise.

Hi You are correct undercuts, will induce extra stress, also adding radii will reduce stress to parts.
Most members will not know what a FEA is (Finite Element Analysis) stress engineering is not for modeller's of tanks (it may well be used in large aircraft models which do have to be certified by the CAA if they are over a certain size and weight )Best way to is use the old adage if it looks right it is right.(if it breaks beef it up)

regards pete

Lord Haw-Haw wrote:Nice fix there.

If you continue to have issue I would try deleting the undercuts, would just keep the arm width the same a the pivot ends, the undercuts look to be a stress risers. Without FEA analysis, minimal material design is difficult. Try using fillets/radius where the elements interface. Of course this could centralise the bending moment at the stub axle and that being threaded... Experimentation arise.

Hi You are correct undercuts, will induce extra stress, also adding radii will reduce stress to parts.
Most members will not know what a FEA is (Finite Element Analysis) stress engineering is not for modeller's of tanks (it may well be used in large aircraft models which do have to be certified by the CAA if they are over a certain size and weight )Best way to is use the old adage if it looks right it is right.(if it breaks beef it up)

regards pete

Agreed so much it was posted twice

ALPHA

thecommandernj wrote:I just finished a WSN T-34 for a customer. All Tamiya based. https://www.youtube.com/watch?v=RYS2dSt1g_8

Clean T-34 commandern ...I admire your self control... as running over the figure or even knocking him on his tush was something I was waiting for while watching your video
Your internal change outs must have been extensive... the control is very refined... Thanks for sharing

ALPHA