Within the last straight line for the Hirobo Bearcat SS push to Thingiverse...
It's currently about finetuning and test print...
I started by trying printing a topdeck section to check my chassis measurements. The print failed multiple times, and therefore I stopped trying and just checked the dimension from the elements which were on the bed at the last fail.
![Image](https://i.imgur.com/CX3D9GF.jpg)
Good news is that it is corresponding... I worked then on the printer to get the bed cleaned and to level it again to get prints working again. I still have an issue in a specific area of the bed that I can't explain, and it doesn't allow me to print the top deck as it hits that area...
I then printed the left part of the gearbox (not the modified one but the original one)
![Image](https://i.imgur.com/gKmHLZF.jpg)
The target here was to check the correspondance with the original right side of the gearbox : it matches and the inside dims are right as well. With the left side, I was also able to check the fitting of the motor plate (perfect), and the fitting on the chassis (perfect again).
I launched a print of the bonnet as I do want to see how it looks in real and how far it is from the original one...
During the prints I did work a bit on the differential : I wanted to check it is right, and rechecked dimensions. I won't print it now, but the diff should work. I'm planning to do a full Powergrip GT2 version of the gearset as well (should be printable even for the small pulleys in MJF PA12 glass filled).
Then I decided to focus on the front knuckles. The axle is inserted while hot with pressure. It works ok, but once you get a nut locked on it or too tightly torqued, it goes with the wheel once you are trying to unscrew it. I have a brand new set of knuckles but I want to provide a solution for those who are not able to find new knuckles...
Basically, using a M4 bolt, we should be able to replace the axle easily. I reviewed the plastic part of the knucle to work with a bolt inserted in it...
![Image](https://i.imgur.com/xLktiaS.jpg)
Once this was done, I just reinforced by extending the diameter around the axle.
I may still do additionnal mods to include M3 holes instead of M2 for the pivot balls... But at least I made some progress today...