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#91
RV Hardware / Re: 3D printed solution to bel...
Last post by Mike - June 20, 2023, 10:14:12 AM
First run of this was a big success - absolutely no lazy pull-off issues at all, compared to typically 3 or 4 feeders in a bank having slip problems before.
Time will tell if there are any long-term issues with wear or belt tension.
I notice that the belts have quite a lot of residual tension after a few feeds, so as I don't use the machine much I'll try to remember to release the tension after a job.
 
#92
RV Hardware / Re: Fixed camera lighting upgr...
Last post by Mike - June 20, 2023, 10:10:10 AM
Yes, 12V - it does dip a bit when the vacuum pump is on, but that's not an issue as it's always on when you need vision, so consistent.
#93
RV Hardware / Re: 3D printed tape holders
Last post by trev - June 19, 2023, 11:09:48 PM
I printed some off Thingiverse years ago. They were okay
#94
RV Hardware / Re: Fixed camera lighting upgr...
Last post by trev - June 19, 2023, 11:09:04 PM
Mike, is the wiring to the LEDs 12v? I am thinking of tracking a board with some white me LEDs on.
#95
RV Hardware / Re: 3D printed tape holders
Last post by Mike - June 19, 2023, 02:35:22 PM
OK these first versions are a bit of a fail :
Handle on cover retainer is too high - clashes with edge of nozzle.
Magnets cause tombstoning of some parts - need to increase height, maybe add provision for washer etc. for shielding
Low height also makes them more tedious to set up.
Will re-do at some point....

 
#96
RV Hardware / 3D printed tape holders
Last post by Mike - June 18, 2023, 02:36:35 PM
Passive tape holders.
30 x 4mm long ( limit of passive feeder length in RV software)
Tape retained by friction-fit bar ( left of image)
Has bumps at side and edns to help stacking.
Takes 5 dia x 3 high neodymium magnet-  press fit but suggest putting a drop of cyanoacrylate glue from the top to secure- make sure magnet is completely flush.
As-is, the fixing to the base plate is a bit slippery, so I added cavities on the underside to take some soft feet
https://www.rapidonline.com/r-tech-310000-pu-round-protective-feet-6-4-x-1-9-clear-sheet-255-31-0000
You could maybe make something similar in TPU. 

The wide ones could probably do with being longer & deeper for taller parts - I'll probably do these as & when needed, as Tinkercad was getting annoyingly slow with all variants in one design
Tinkercad link https://www.tinkercad.com/things/6ix3NnzxHmA

Zip of STLs below

tapeholders.zip
#97
RV Hardware / 3D printed PCB corner block
Last post by Mike - June 18, 2023, 02:23:36 PM
3D printed PCB corner block.
Print the base and two of the screw STLs.
Screws are held in place with M3x16 screw, washer and spring ( approx 8 dia x 10mm long)
Takes two 10mm dia x 5mm high Neodumium magnets
#98
RV Hardware / 3D printed solution to belt sl...
Last post by Mike - June 06, 2023, 07:32:08 PM
Having just got a 3D printer, I thought I'd have a go at improving the problem I'm always having of the belts on the cover-tape spools slipping, leading to inadequate peel.

I've done a design which adds knobbly bits to the belt part of the reel, and this definitely has better grip ( tested by passing a belt over this and a normal reel and seeing which slips first).

Not tested in anger yet - printing a couple of feeders' worth of them now. Could be that it's too grippy, but sharing files here in case anyone else wants to give it a go.

Tinkercad link to model : https://www.tinkercad.com/things/lPaYhVs57R6
STL files attached
#99
RV Software / Re: RVgerber importing gerbers...
Last post by phonoplug - June 02, 2023, 12:46:09 PM
Ha! This caught me out again! Glad I noted it down somewhere!
#100
RV Hardware / Re: Nozzles for sale
Last post by phonoplug - June 02, 2023, 12:44:00 PM
Hi there, I've been trying to get some made for a while, just a case of twisting someone's arm a bit more as I think they are busy on other things! Will let you know if I get any progress