Monday, January 08, 2018

Nut Crackers (Cristmas gifts 2017)


It has been a tradition these last few years, at Christmas, to make a gift for closest friends. This year was the Nut Crackers, my own design as all the other stuff on the blog







Thursday, January 04, 2018

Build Hydraulic Press

A press is something i need to get going this project, but when you need one, nothing else will do. So is time to pick some metal and go for it.
During the process I had some difficulties with the hydraulic devices, at the moment I am waiting for one with 30 tons of capacity, after having damaged the press of 10 tons. So we will talk about it later.













Monday, July 31, 2017

MITRA FPV Amphibious traked vehicle shafts 02


Well the first time did not go well with the shafts had to redo them in solid round bar.  
Previously the tube after pierce the aluminum shrunk significantly, which left a large
gap with the bearing.




Monday, June 26, 2017

MITRA FPV Amphibious traked vehicle bearing suports


The last batch of aluminium parts is ready . I rough cut first leaving a 0.2 mm larger on the outside, then i made a fixture to finish the parts. Works well so you do not have to cut the part until it loosens.
Previously screwed each piece to the cnc table, but this time gave more screws then i can handle








Wednesday, June 14, 2017

MITRA FPV Amphibious traked vehicle



That is the current state of this project 








































































































Here we can see how i attach the parts to the cnc table , is a 20mm phenolic board. I start to drill 2,5mm holes  that belong to the parts then i drill 2mm holes in to the phenolic to screw the wood bolts, that way after cut the perimeter of parts they stay attached to de table.








































































All the parts machined till now...







Monday, June 05, 2017

MITRA FPV Amphibious traked vehicle



Hi, finally the frame is completed . Some tweaks on the bearing outside support have to be made, to do it i made a plastic jig and machine one at a time... it works fine.
With the small parts i did almost the same but by option.. i rough cut them then i trim the outside on the jig this time three at a time

s