09-24-2017, 09:46 AM
Writing the posts for this build log are nearly as much work as just building the darn thing So some of these posts might be kinda short/small, just to keep me from feeling overwhelmed by the amount of information I have to convey. I also want to get this stuff written down before I forget what I did.
I didn't feel like sanding last night, so I went back to the flat pack parts and working on the base. There are four long strips of 1/16 styrene that form the largest, lowest surface on the base. I grabbed one of them and taped it to one of the uprights and fit it around the curve of the base.
Then as before I ran a bead of Weld-on along the top and bottom edges, then added more tape along its length to hold it in place while the cement hardened up.
I did the same thing for the other half using another of the strips. I made sure the ends of the second strip butted up against the first properly before I glued it (sorry. didn't get a photo), taped it in place and added the Weld-on.
This part of the generator is two layers thick, so I put on the remaining two strips pretty much exactly the same way, making sure the butt end seams of the outer strips didn't line up with the ones for the inner strips. Then I taped the crap out of it (that's the scientific term) and left it to cure for a bit.
While that was curing I picked up the long, curved, 1/16 pieces that form the angled face of the base. These parts need a bevel on them to fit correctly and make tighter seams. I have a triangular file that I often use for this sort of thing, but any tool or knife that you can control well that will remove a little bit at a time will work great. I held the strip in one hand at the appropriate angle (I guessed) and ran the file along the edge shaving off little ribbons of plastic.
It didn't take much effort to get a proper bevel on the edge
Then I just flipped it over and did the same thing to the outside curve, making sure both bevels pointed in towards each other.
I fit the strip to the base, carefully aligning the top edge to make the seam as tight as possible and taped it place with a bit of pressure. I really didn't want that seam to shift. I went around the entire strip that way, focusing on just the top edge.
Once I had gotten the whole top edge in place, I went back through, pulling the curved strip down some, and taped the bottom in place as well. This caused some tension across the surface of the piece and insured a good fit. Then I glued the whole thing in place. I did the second half f the strip in exactly the same way, making sure the ends butted up against each other properly.
This is what I had when I was finished. I put it back on the shelf to cure overnight.
The whole time I was assembling this section of the base I was lamenting that there were no alignment holes or indications for placement of the geeblies that would later be attached to the base. One of the primary reasons we use CnCs is for their precision, and the CnC will put the parts in the correct place better than we can with a ruler later. That's an addition to the plans I'll have to add soon.
Also, I had neglected to include information for the Weld-on at first mention, so I'm including it here. I'm using Weld-on 3
and I use one of these applicators to apply it
I didn't feel like sanding last night, so I went back to the flat pack parts and working on the base. There are four long strips of 1/16 styrene that form the largest, lowest surface on the base. I grabbed one of them and taped it to one of the uprights and fit it around the curve of the base.
Then as before I ran a bead of Weld-on along the top and bottom edges, then added more tape along its length to hold it in place while the cement hardened up.
I did the same thing for the other half using another of the strips. I made sure the ends of the second strip butted up against the first properly before I glued it (sorry. didn't get a photo), taped it in place and added the Weld-on.
This part of the generator is two layers thick, so I put on the remaining two strips pretty much exactly the same way, making sure the butt end seams of the outer strips didn't line up with the ones for the inner strips. Then I taped the crap out of it (that's the scientific term) and left it to cure for a bit.
While that was curing I picked up the long, curved, 1/16 pieces that form the angled face of the base. These parts need a bevel on them to fit correctly and make tighter seams. I have a triangular file that I often use for this sort of thing, but any tool or knife that you can control well that will remove a little bit at a time will work great. I held the strip in one hand at the appropriate angle (I guessed) and ran the file along the edge shaving off little ribbons of plastic.
It didn't take much effort to get a proper bevel on the edge
Then I just flipped it over and did the same thing to the outside curve, making sure both bevels pointed in towards each other.
I fit the strip to the base, carefully aligning the top edge to make the seam as tight as possible and taped it place with a bit of pressure. I really didn't want that seam to shift. I went around the entire strip that way, focusing on just the top edge.
Once I had gotten the whole top edge in place, I went back through, pulling the curved strip down some, and taped the bottom in place as well. This caused some tension across the surface of the piece and insured a good fit. Then I glued the whole thing in place. I did the second half f the strip in exactly the same way, making sure the ends butted up against each other properly.
This is what I had when I was finished. I put it back on the shelf to cure overnight.
The whole time I was assembling this section of the base I was lamenting that there were no alignment holes or indications for placement of the geeblies that would later be attached to the base. One of the primary reasons we use CnCs is for their precision, and the CnC will put the parts in the correct place better than we can with a ruler later. That's an addition to the plans I'll have to add soon.
Also, I had neglected to include information for the Weld-on at first mention, so I'm including it here. I'm using Weld-on 3
and I use one of these applicators to apply it