Silence will probably be misinterpreted so here is a bit of a recap followed by an update.
When we left the story on Thursday the first brass castings had turned up and were horrible. Investigation revealed that most likely the caster didn’t follow the different burn out procedure required by these printed resins. At that point we had to concentrate on getting ready for the 7mm NGA Convention. The show was a massive success with some cracking layouts, more then usual due using the AGM room and no lull in the afternoon caused by the AGM. I can’t help but think that we should sack the AGM off to the back room of a pub somewhere and just have a cracking narrow gauge model show each year.
Anyway, on our return to York investigations started on finding a caster who would work with these resin waxes. With the help of the printers support three were identified for initial enquiries. There were two in the UK and one in Poland. The responses so far have been: –
- No response
- Grumble, Grumble, waxes, don’t burn out properly, no we don’t do the burn out differently. Net very helpful.
- Yes we use a Form 2 Printer. Use it all the time with great result. Best thing is you send me the STL file and I’ll show you what I can do
I let you guess which response goes with which company but I am looking forward to a parcel from Poland.
For the trial they are using their printer whereas for production I would be sending waxes I have printed but the whole process takes several days with print time, mould setting time, burnout time and so on but I am hoping for some results next week sometime.