How to extend a Raw 1.5 and reinforce it with steel

You can easily make a raw longer or shorter than the original 990x990mm. This requires that some of the parts needs to be replaced.

To make a Raw 1.5 wider:

All parts that has to be wider will be extended the same amount so for the A, B, C, D, E, F, G you just add 20cm for example. If you already have a machine then the shaft clamps can be reused, just buy the amount that is missing. All other parts need to be replaced. If you are extending a machine you already built you might be able to use some parts from the Y-axis for the X-axis and the other way. You should also consider adding an extra base profile (F).

On an original Raw 990×990 the measures are (also listed in your BOM list if you bought the plates):
A 990mm
B 985mm
C 800mm (If you don’t have Belt drive the steel bar can go from plate to plate 990mm)
D 580mm
E 980mm
F 950mm (Optional)
G 980mm
Just add 20cm for example to the above values exept for (F)

You will also need to replace the base table if you have a machine that you are modifying.

The X-axis don’t need any more reinforcements up to 150cm wide. If you are planning to make it wider then you need to fill the Steel bar with concreate or epoxy.

To make a Raw 1.5 longer:

All parts that has to be longer will be extended the same amount so for the A, B, C, D, E, G you just add 20cm for example. If you already have a machine then the shaft clamps can be reused, just buy the amount that is missing. All other parts need to be replaced. If you are extending a machine you already built you might be able to use some parts from the Y-axis for the X-axis and the other way. For our pre-built machines that is longer than 1000mm we use 20x60mm instead of 20x40mm (E), but that is up to you.

On an original Raw 990×990 the measures are (also listed in your BOM list if you bought the plates):
A 990mm
B 985mm
C 1000mm
D 580mm
E 950mm
G 950mm
Just add 20cm for example to the above values

How long can i make a Raw1.5?

We recommend not to build it wider that 1300mm and longer that 2000mm. It’s difficult to find longer racks than 2000mmm and they bend to much if they are longer. Don’t use belt for machines longer that 1000mm, it works but only for cutting wood in low speeds.

Reinforcements for the Y and A axis

The Y and A axis should be reinforced with steel bars if you make the machine longer than 1200mm. It’s very simple, look at the image below and you will see how its done. We fasten the steel bar exactly the same way as we do with the X-axis bar. You can also use silicone or a strong glue along with the screws.

 

As you can see our pre-built machines has bigger corner plates but you can still use the ones you have. Ours are bigger to cover the steel bar and our wider base. We also use bigger racks (MOD 1.5) but that requires more modifications. If you want to use MOD 1.5 you need to modify the parts by yourself. Another thing to concider is to have a support bar (B) in the center of the Y and A axis as we do with our larger machines.

 

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