Up the Line - 1918

Those Talyllyn slate wagons are exquisite. What scale are they?

Good to see you posting again and it was very nice of you to mention that my own ramblings on 3D-printing had been helpful to you.

 

I initially had problems with models not sticking to my printer bed but have had none, since applying blue painters' tape.  My print bed is unheated, as I wanted a printer that was reasonably 'grand-child safe'.  Two other factors have a large impact on adhesion - setting the nozzle clearance from the bed accurately and the filament temperature.  With the original filament I used, it was a bit too 'runny' at 200°C but excellent at 190°C.  I changed to another brand and that was too stiff at 190°C but works well at 205°C.  Some experimentation is needed.  The fact that you have success on one part of the bed suggests that you might have a levelling problem - it is very critical.  Try printing some simple lines across the bed of your printer and see what happens when you peel them off - that will find adhesion differences.

 

That mini-chopsaw looks a handy tool.  I recently used a full-size one when replacing our deck in the garden but had never though of a mini-one.

 

I look forward to reading about your 'slightly secret' project.

 

Mike

He can't tell us about the secret project as he'd have to kill us afterwards.

 

It is worth persevering to get the BLtouch working on the Ender-3, it makes bed leveling so much easier and the use of 9 points on the bed to generate a 'mesh' which then allows for slight warping on the bed is a great help. 

 

All the best

David

 

 

I'm very envious, you have some interesting gatchets.

On 31/03/2020 at 20:03, Andrew Young said:

Those Talyllyn slate wagons are exquisite. What scale are they?

They are 1/32 and built by Trevor Hughes as part of a major project to model Pendre with no compression! Various bits of the project have appeared in MRJ and NGIR with more articles to come and hopefully the finished article but probably a couple of years away. It is all very inspiring and a great mix of traditional modelling with modern techniques where it is sensible to use them hence the 3d bobbins.

6 minutes ago, KH1 said:

They are 1/32 and built by Trevor Hughes as part of a major project to model Pendre with no compression! Various bits of the project have appeared in MRJ and NGIR with more articles to come and hopefully the finished article but probably a couple of years away. It is all very inspiring and a great mix of traditional modelling with modern techniques where it is sensible to use them hence the 3d bobbins.

 

Thanks, I’m aware of that project and did wonder whether they were for that, but always best to ask. It’s going to be an excellent and inspiring model when completed which will probably put me off Modelling the TR completely. But then I do get to play with the real thing... (well virus’ permitting)

Thank you Mike, David and Snitzle for you comments. I have tried everything to get it levellled and seems to work for a bit but then not the bext time (which could be several weeks!), I use it. The filament thing is interesting though as I have used a couple of different sorts without thinking that it might be part of the variation. I have spent a substantial chumk of today in AutoCad and thought I was betting somewhere but now appeared to have changed something somewhere and nothing is behaving!

Out of interest, I looked at the All3DP review of the Ender-3 Pro and, while it was very favourable, they listed the following 'Cons'

• Print bed leveling is tricky
• Magnetic bed not to everyone’s liking
• We’ve encountered problems with brittle filament
• Sometimes, additional adhesion materials are needed
• Some flaws of the Ender 3 weren‘t ironed out

From that, it looks as though they had problems with adhesion so it confirms that is where you need to direct your attention.  I once tried spraying the print bed with 'Spray Mount' but I'm not sure if that would work on a heated bed

Good to see an update. Hope you resolve the problems soon. 

 

Hope you are all keeping well.

So happy to see an update. That is an amazing amount of equipment to then acquire and start to use. I'm very impressed. Now that you have a secret project we will all want to know what it is. If Llamas are needed we can start to narrow it down.