I created these simple riser blocks for my wife's laser engraver. The legs of the engraver are one inch wide and the square (or diamond) openings allow the feet of the engraver to sit inside them securely. We use them when we need to add height to the engraver for taller objects. Blocks can be added or removed to adjust the height 25mm up or down. 25mm is extremely close to 1 inch. The cube portion of each block is 25 x 40 x 40 mm.

The “kit” consists of 3 types of blocks.

1. Main Riser Block - This block has a 15 mm deep diamond opening on top and a 13 mm tall diamond extension on the bottom. These can be stacked by inserting the diamond extension into the diamond opening. Please wait for the riser blocks to cool down before assembling for proper fit. Technically, these are the only blocks you need for stacking. However, your bottom block will be 38 mm tall because of the extension on the bottom. If you want each block layer to be 25mm tall, you must print a Bottom Riser Block.
2. Bottom Riser Block - This block has a 15 mm deep diamond opening on top and a flat bottom. By using this block on the bottom of the riser stack, each block layer of the riser stack will be 25 mm tall.
3. Top Riser Block - This block has a flat top and a 13 mm tall diamond extension on the bottom. Use this block as your top block if you want the top of your riser stack to be flat.

I use the terms Main, Bottom, and Top because that is how I use them, but the Riser Blocks could be turned sideways, flipped upside down, etc. The Bottom and Top Riser Blocks allow for 6 flat surfaces on your assembled riser stack, regardless of the final layout.

The Riser Blocks can be scaled larger, but if you scale larger, the fit will be looser. If you scale down, the Riser Blocks will become significantly tighter. If you want to resize and keep the same fit, the size difference between the opening and the extension is about 1.5 mm across the square, from side to side.

I created the extension and opening as diamonds to minimize the support needed to print the blocks. The only support needed is under the extensions of the Main and Top Riser Blocks. It is very small and will detach easily because the edge is very thin. This is why I print the Top and Main Riser Blocks on their sides.

I have the Bottom Riser Block print standing up because I print it separately and use the textured PEI plate for the bottom side for improved (albeit slightly) traction. The layers do become compressed a bit, so the Bottom Riser Block has a much tighter fit than the Top and Main Riser Blocks. If you want the same fit as the other Riser Blocks, rotate the bottom block 90 degrees and print it on its side. I generally keep my bottom block attached to the block above it, so I don't mind it being harder to separate.

I have the best fit when printing .16 mm layers as opposed to .20 mm layers. Also, the supports don't seem to appear when previewing the file on a .20 mm layer print. If you need stronger Riser Blocks, increase the number of walls and fill density of the Riser Blocks. The settings I have in the file work well for our laser engraver, but they are lighter print settings.

You can split the Riser Blocks into Objects in Bambu Studio by right-clicking the blocks and choosing Split→To Objects. You can then clone each Riser Block to make your required number of Riser Blocks.

The Riser Blocks are a simple design, but I hope you find multiple uses for them. Good luck and good printing.