The Y axis linear guides do not use the plastic wheels of the original design. They now use rubber coated wheels. The wheels were made from a couple of rollers that were cut down. The ends were faced off to length in the lathe with a center hole opened...
So the y-axis... I really think it needs to be bigger (surprise!) so, 'Y' not. My reconsideration of leaving the y axis as-is is due in part to heating considerations. The PCB heaters I will be using will be between 8 and 10" square. I am choosing these...
I think the design of the Y Slider went well. It should do the job of clamping the X axis tubes and look sleek doing it. I made sure that the X tubes were aligned with the Y tubes so that there would be no additional height lost because the X slider...
Reduced the weight and footprint of the Y-Axis Carriage.Experimenting with Igus anti backlash lead screw nuts.Trying out different direct drive extruder designsI'm considering making the X and Y-axis C-Carriage designs from solid rectangular bar instead...
X- and Z-axes both seem to be surprisingly stable and wobble-free (except for a slightly bent Z screw which I'll attempt to straighten later). However, the Y-axis has a distinct wobble, so straight edges aligned with Y end up slightly wavy. The fault...
The Y axis has been finished to the point of being mounted onto the paper tray dispenser that will become the Z axis. The up and down movement of the Y axis is limited by the spring loaded shaft that runs along the X axis. The shaft shown in the middle...
Esquematico:Para el desarollo de una placa de circuitos impresa, necesitamos disenar el circuito con el que opera el control del robot hexapodo. Para lograr esto, realizamos dos propuestas de esquematicos. El primer esqumatico es en el que no se toma...
Well, the machine is finally taking shape! This week I was able to get the y-axis rails and the x-axis gantry mounted and squared up to the table.The main difficulties were dealing with a few slots that didn't line up perfectly with the threaded holes...
Today I finally worked out all the bugs in the IK and servo driver software. This now allows me to set any leg at an absolute x,y,z co-ordinate (within reason, of course... there are physical limits to how far each leg can move). To demonstrate...
To conceal the rough ends of the rails, I covered them with printed end caps, which also act as belt tensioners. The belt brackets are fastened to the end caps and tightened using M3 screws. Afterwards, I fixed them to the rails with more M3 screws...
The Y-axis sleds are what that attaches the Y-axis carriages to the X-axis.I started out with some aluminium plate that had been faced down to 8mm thick.Then I did a 2D profile of the part, leaving tabs to keep the parts secured in the stock.Oops, or...
It looks like the XY calculations are quite easy. Its called forward kinematics and can be seen calculated here https://www.marginallyclever.com/2012/02/drawbot-overview/. Next I have to do interrupts on the encoder rotation to make sure I get every...
I’ve been iterating the Y-axis in Fusion 360. A common design I have seen on other moving-bed designs is four linear bearings - one bearing at each corner of the bed. The problem with this design is you lose the distance between the bearings in travel....
I've now built the aluminium frame and completed the Y-axis. Of course, this was not without it's problems.Firstly, I misordered - I was one set of uprights short. This may not be a massive problem though, as I hadn't taken into account the...