Too many WAX SPRUES ?? =>10 photos

 I have written about sprues before, but the need to discuss this topic again remains essential.

 I was exploring why we must attach so many wax sprues to the basic pattern. This would help in the flow of hot metal during the revolving of the crucible. 

 Some of the (added) sprues weighed more than the actual basic item.

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 If you must use sprues, PLEASE USE A THINNER ROD, not as shown in these photos.

 After the casting, there is a direct need to cut off these sprues. This is a prime example of "over-kill", as the cutting of the metal sprues could lead to damaging the basic pattern. OUCH!

 

 My intentions were good, but I applied too many thick sprues to a small area.

  Whenever there are sprues being attached, the next major problem is in the 'cleaning'.

 This quagmire of sprues is a nightmare to cast this large curved bracelet. The 'weight of the sprues' is almost that of the bracelet.

 

   These few sprues are just sufficient for this casting.

  These 'extra' sprues are more of a time-wasting labour than a helpful addition for casting.

 Suffice to say, 'the best intentions were to assist in casting.' You, the jeweller, must be made aware to keep your sprues to a minimum at all times.

 For each individual sprue, the removal of a sprue led to more 'complete cleaning'.

 For obvious reasons, I never forged ahead and did the metal casting. This was just an exercise in demonstrating the placements of wax sprues.