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Finished with the Lathe Cuts

At last I finished cutting all HR07-I101 parts, with a few spares. So I am finished with the lathe cuts. The DARwIn-OP robot clone requires 15 HR07-I101s, 15 RX28-CAPs, and 4 FR07-F101. I thought about buying all these parts but making them wasn’t so bad, specially with the lathe’s quick-change tools it is easy to make identical parts. Tapping all the 2mm threads was a bit tedious.

Bunch of HR07-I101
Bunch of HR07-I101

Now I will polish and try to anodize the HR07-I101s and RX28-CAPs with natural aluminum finish (all other parts should be black anodized, still waiting for the black dye) before mounting.

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Extensión de Eje X de Fresadora Sherline

Decidí agrandar el eje X de mi fresadora Sherline con una tabla de 19″ de A2Z y una placa matriz de High Tech Systems de 14″. Sherline tiene una tabla extendida pero quise probar esta marca porque es un poco más alta y fresar las piezas para el robot DARwIn-OP  es un trabajo de muy bajo perfil y las fresas son cortas. La placa matriz ayuda en altura y permite soportar un trabajo de 4″ de ancho.

Extended Table and Matrix Plate
Tabla Extendida y Placa Matriz

La placa matriz es bastante buena, sólo recibió un golpe en una esquina, probablemente en el envío a Chile. La tabla extendida es muy larga, instalarla requirió adelgazar la pieza de ajuste de la cama lo que me tomó horas. Ahora tengo un eje X de 360mm de rango.

Hice un nuevo patrón de agujeros en la placa matriz para sujetar mejor las planchas de aluminio para cortar las piezas del DARwIn-OP.

New Hole Pattern
Nuevo Patrón de Agujeros

El patrón de agujeros es para hilo M2.5. Están separados en ½” para alinearlo al patrón preexistente. Hice 3 líneas de agujeros uno al medio y una a  5/32″ de cada borde de la placa de 4″.

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CNC Sherline Mill Extended Table Upgrade

I decided to upgrade my Sherline Mill. I got an extended 19″ X axis table from A2Z and a 14″ matrix plate from High Tech Systems. Sherline also has an extended table, but I wanted to try this brand because it is a little more taller and milling frames for a DARwIn-OP robot clone is a very low profile work and the endmills used are too short. The matrix table helps in height and supporting a 4″ wide work.

Extended Table and Matrix Plate
Extended Table and Matrix Plate

The matrix plate is quite nice, just one corner got scratched, probably on the trip to Chile. The extended table is quite long. To install it requires to adjust the gib on the base dovetail which took me hours, now I have a 360mm range on the X axis.

I drilled a new pattern of holes in the matrix plate to better hold aluminum plates for cutting DARwIn-OP’s frames.

New Hole Pattern
New Hole Pattern

The hole pattern has M2.5 threads. The holes are ½” apart to align to the preexisting pattern. I made 3 hole lines, one at the middle and one at 5/32″ from each border of the 4″ plate.