You did fine. The trick with cabinets is consistently cut parts and square cuts.
Few things to consider for the future:
Corner clamps can be handy for holding parts while screwing but aren’t necessary. The back squares the cabinet. Be careful with corner clamps. The plastic Rockler set I have are horribly out of square. I recently bought a couple sets cheap that are “pretty good”. Not important enough to warrant Woodpecker prices. 😉
If fastening to wall a thicker back or nailer strips. Cabinet looks better it back is in a groove or rabbet.
Few things to consider for the future:
- Before cutting parts double check your tools for alignment and accuracy. Table saw blade exactly 90°.
- Don’t assume the ply is square from the factory!
- Use an accurate large square. Also helps find bows. You can make one yourself use 3,4,5 triangle principle.
- If the ply is bowed and you use a small square you will get a false reading. You can chase your tail.
- Cutting panels square critical and challenging if you don’t have the set up. Don’t assume you rip everything and be square! If you do much of this a crosscut panel sled is good to have. Note: this is not a regular ts sled.
- Miter gauges can work but not always depending on panel width and length.
- If you dado one piece of ply, then rip into two sides they‘ll be perfectly aligned.
- Dont rely on glue alone. Cabinets need mechanical fasteners (screws) glue not necessary. Staples ok on back - no nails they don’t hold.
- Screw the shelves from the outside, do a counter bore and plug. If the ply is bowed this corrects.
- Edge banding always gives a more finished look. Iron on is easy to do
- The back needs to square for your cabinet to be square!
Corner clamps can be handy for holding parts while screwing but aren’t necessary. The back squares the cabinet. Be careful with corner clamps. The plastic Rockler set I have are horribly out of square. I recently bought a couple sets cheap that are “pretty good”. Not important enough to warrant Woodpecker prices. 😉
If fastening to wall a thicker back or nailer strips. Cabinet looks better it back is in a groove or rabbet.