I have the flipsky 65161 120kv motor and my mast is liquidforce. €200 is what I would spent as max.
I am not sure how that works? I always tought a mold would be expensive as wel?
They basically create a CNC mold of your piece and put the chosen material type in it at high temperature. Looks cheaper to me, because you won’t be using the CNC mill as much as a full CNC’ed part would.
Jezza used injection molded technology for his mastclamp.
@Jezza : can you confirm please ?
Edit : seems even cheaper than I tought. The alu piece also looks cheap to me…
Does fr has mast clamps for a liquid force mast as wel?
I’m running FR clamps yes (I had to machine an adaptor to the motor). I much prefer the Alu clamp as it grips the mast better and does not slip.
With Injection moulding its hugely expensive to set the moulds up. I have debated making some clamps from Delrin/Acetal for a while but just haven’t got around to it yet.
I think he does have a clamp for LF, but you would have to confirm with him.
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I guess I found that he has mast clamps. Can anyone help me how to order?
Give him a shout on facebook…
I have also been looking for tough pouring plastics that dont require injection moulding. These would work well for mast clamps and battery housings alike. Maybe even for props…
Do you have a picture of the adapter that you made? Was it for a flipsky motor?
Don’t have any pics, but it was for the same motor yes.
Oke thanks for the help I hope it wil work out! 
Im in the process of casting mine. using the lost shell method - Used a zero infill PLA print. Ill pack this in wet fine sand, Add a spidget. and pour. might as well try. plenty of old alu knocking about. worth a shot i guess.
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If you want can you show us the results? Would be interesting to see how it works out
My front clamp broke. Now I use this. Ugly as hell, but it does the job:D
I’m going to put some moldable epoxy around it for better streamline.
Oke that does not look so nice😅 I made a stainless steel insert a while ago. It works great but is a pain to bend exactly right.
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Very smart and the way to do it , no trouble with Sls printed part ( even fine)
But that propeller 
De FR mastclamp on my mini testing mast. Realy happy with the looks and super strong!
Thanks for the tip @Jezza
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Did you make it (little adaptor) from Delrin/Acetal?
which prop are you using is that the flisky motor?
Thats the Solas prop. It needs to be modified a bit to fit