July 9th 2023
As date says, this was work carried out a few months back.
Track moulding
Step 1:
So after last month’s attempt at test moulding track, this second attempt went much better.
I bought 85 shore compound mix, the higher the shore number the harder the rubber.
I should of used a mould release, but I was rushing lol. Once cured, I had to really prise the new rubber tread out of the mould.
Step 2:
Was to mix up another small batch and see how well it would join up with the first section of tread. Once it had cured, I used the first section to help pull the second section out.
The join, just a straight join line, bonded well together.
I had thought I would need something to help join the two sections.
You can see the flashing where the two join, but it is seamless and strong!
Step 3:
The next step was to assemble the new joined track into the mould and fit the second part of it. Another batch was made and poured into the mould.
Had I removed it to soon in my haste?
Step 4:
I mixed up some of the last rubber and poured it into just the second half of the mold. This I only filled up half way. The result was much better. It wasn’t so ridged which could be better.
Re-mix:
As a re-test, I mixed up a second sample of the 60 shore rubber, this time using the measuring pot I had used for the better track testing, and these came out ……..ok/the same (good or too sticky). The result was a good one. Soft and rubbery without the stickiness as before.
September, and it’s been a while since I did the re-mix re-test and have not had time to do more.
Electronics:
The receiver arrived safely and so I 3D printed off a mounting bracket for it.
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